Remington air rifles with elasticized lens covers for their scopes are quite accurate. This gas propels the piston forward to compress the air behind the pellet. Models 541-T and 581-S Model V3, Model XP-100 1.90 postage. * Remington Express air rifle * Spring-piston * Breakbarrel * Single-shot * Fixed fiber optic front Probably not. Can anyone instruct me on how to correctly disassemble this rifle , any help would be greatly appreciated !! Change). This air rifle will not disappoint, simply add pellets and you are ready to start shooting out of the box. Item comes in various specifications. Just want to follow this thread. Model R-15 VTR Purchase with confidence from a family run business with over 30 years experience, A brilliant under lever with Thumbhole stock and great styling. So, chances are that you (or a close family member) may have a Rem 700 of some vintage sitting in the gunsafe. Models 580, 581 & 852 (Pre-1982) And in another section of the manual titled Troubleshooting, the manual states: Do not rest barrel on anything while shooting. Model SPR220H THE FAMOUS R IS ENGRAVED INTO THE PISTOL GRIP END air rifle. FEATURES SOUND SUPPRESSING MUZZLE DEVICE Any order $150+ with a shipping address in the contiguous US That certainly was the case for me. Air rifles. Use loose consistent pressure and replace airgun to same position for each shot. I pulled out the manual which came with the Remington Express. Specs Piston weight is 270g. Msg & data rates may apply. With an air rifle, you are not firing real ammunition. The other dimensions to consider that are important are the length of reach and the height of the cheekpiece. Model 700 EtronX Modeled after their famous Model 700 center fire rifle, it was offered for $99.00. This video can be used as a tutorial how to maintain your break. From its all-weather synthetic stock, to its high powered gas piston, this gun is an easy buy. .22 F/POWER AIR RIFLE Some people just enjoy the newness of owning a certain item. Our customer service team can help determine the best course of action and provide you with some options in the event you're interested in a return. 1.REMINGTON AM77X AirMaster 77 Air Rifle with Scope, 2.Remington 89206 Express Synthetic Air Rifle, Top11 Best LPVO Scopes(Budget,AR15,Hunting), 8 Best Spotting Scopes for Long Range,Hunting,Birding, 7 Best Gaiters for Snakes / Snakeproof Gaiters, 8 Best Hunting Scopes for Deer,Elk,Coyotes 2023, 7 Best Hornady Reloading Kits (Complete & For Beginners), 7 Best Big Tents for Camping /Large Tents for Camping, 9 Best Ammo Reloading Kits (Complete & Starter Kits), 6 Best Scopes for 308 Ruger Precision Rifle, 7 Best Vortex LPVO Scopes (1-4,1-6,1-8,1-10,FFP,Razor), 5 Best Night Vision Compatible Red Dot Sights, 8 Best Red Dots with Unlimited Eye Relief, 6 Best Vortex Red Dots for Turkey Hunting, 5 Best Trijicon Red Dot Sights for Pistol,Shotgun,ar-15, 10 Best AR Scopes for 3 Gun,Coyote,Hog,Deer Hunting, 8 Best Rimfire Scopes for 22LR,Hunting,Competition, 6 Best Varmint Scopes for AR-15, 223 & 22-250, 7 Best DMR Scopes (308,Budget,AR15,Airsoft), 7 Best Vortex Scopes for Whitetail Hunting, 5 Best Co2 Air Rifles,Powerful Co2 Air Rifles, 7 Best Vortex Scopes for Long Range Shooting, 7 Best Rifle Scopes with Illuminated Reticles, 6 Best Vortex Scopes for AR (AR 15 /AR 10), 5 Best Night Vision Scopes for Pellet Gun, 7 Best Night Vision Scopes for Air Rifles, 7 Best Night Vision Scopes for Coyote Hunting, 7 Best Scopes for 6.5 Creedmoor under $500, 7 Best 308 Scopes(Long Range,Bolt Action & Hunting), 8 Best Scopes for 22lr.Best 22lr Scopes Reviewed, 7 Best Cordless Chainsaws with Battery and Charger. Remington Express Hunter 177cal break barrel air rifle shoots up to 1200fps with 18 foot pounds of energy (foe). Remington air rifles will make you not want to leave the shooting range. Since the sun doesn't always shine when you want to shoot, a stock that doesn't need pampering when the weather turns nasty means you can use it anytime. A .22 pellet will transfer more energy to the quarry provided you can place the pellet in the kill zone, which is simple to do with .177. The main reason why an Air Rifle doesn't fire is typically caused by a mechanical related failure of the inner mechanism. can you send me one. But if you don't have the manual for whatever reason, you can download the digital version from the Remington website or using the link in the end of this post. If you can’t find the manual you are looking for in the dropdown, please view your item’s product page. We've got you covered! A black powder ignition system which was popular during the 18th Century, flintlocks had exceedingly long Lock Times. Model 1903-A3 Model SPR94 Combo It definitely has some weight to it, but it is all centered right near the powerplant, so it feels very balanced. It is obvious that each air rifle ought to be as accurate as possible, however, there are other considerations that could make a hunter select a less accurate air rifle. Not that clear but this is the exploded diagram of the Remington Express, it would appear there is an adjustment screw behind the trigger, in the diagram it will be the small screw with a spring around the threads. The sights are nice. This rifle comes with a quality 432 scope complete with mounts and ready to go. Check product details to select what is best for you. Sights - Adjustable Fibre Optic To be more specific, I was involved in building, shooting and reporting on replica flintlock rifles and shotguns. I was out the door before our morning pot of coffee was cold to buy the first gun sold at our local outlet. The seal showed some slight assembly damage where care hadn't been taken when pushing it over the various cut-outs in the tube - they were not burred or sharp, it was just carelessness. Light Remington air rifles are ideal for short-range shooting, up to 35 yards, while super high-powered air rifles are capable of shooting up to 80 yards with no problem. Model 742 RM380 Depending on how many pellets you shoot a week, this could be a major factor in the choice of your rifle. This high quality rifle kit also includes a 4x32 scope so you can always hit your target. Remington air rifles with a shorter than normal barrel length are easier to handle and the barrel is less likely to hit any obstruction. Remington has long been known as one of the first firearms manufacturers in America, but did you know theyve been making airguns since 1928? Add to Cart. Model 770 The Remington Express Hunter, a.k.a. (function() { 2 x Remington Express Air Rifle Breech O Ring Barrel Seal Ref: 74. Please Note: All Remington User manuals are available as downloadable PDFS. I just knew I had to tear the gun down and get all that extra oil out and do a basic Lube tune. I may mount the scope later, but I find that on these budget air rifles the scopes that come with them usually arent too good. Brutal weather made it almost impossible to visit the gun range with my shotguns. and to the Remington Express Air Rifle. Outdoormoran.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. on:September 24, 2016, 09:17:51 AM I was actually trying to disassemble the rifle, and do a lube tune. Large choice of air rifles: Gamo, Crosman, Stoeger. Model 25 But recently, I revisited my youth, exploring the wonderful world of airguns I had ignored for decades. Please select the checkboxif you wish to Opt In. Model SPR310/SPR310S Action. The information that we collect is anonymous and used for statistical purposes only. The hardwood stock is superbly finished with chequered grip and fore-end with a fitted rubber recoil pad. What do I Need to Survive in the Wilderness? A full refund will be given, Remington Express Air Rifle - .22 Instead of a normal spring being compressed, a cylinder filled with gas (nitrogen) is compressed. You can learn more about our Cookie Policy Here. gemini52 Hard Air Magazine is the best Internet destination for everything airgun related. Model 760 For example, if being less penetrative is important to the hunter, then it might be better to get an air rifle that is less accurate and better suited for wadcutter-style pellets. Qty. I bought for just under $100 at Dicks Sporting Goods while it was on sale. The thought occurred to me that while the analogies are not identical a similar challenge exists for those who wish to shoot spring/piston or gas piston-powered air guns. 4.73. At that point I did what all sportsmen eventually do when all else fails. Fig 3 shows how much metal has been removed. _gaq.push(['_setDomainName', '.accurateshooter.com']); Get FREE shipping on qualifying orders! Do you intend to use it hoping to learn how to hunt small game with it or do you want to use it in some target shooting practice or maybe get yourself into a formal competition? Ref: 416 Remington Express Compact .177 Break Barrel Air Rifle. seller sent the item i ordered , shipped and packaged well ,no damage. Remington air rifles are one of the most trusted names on the market with over 200 years of experience in the firearm industry. In order to ensure our websites, mobile sites and mobile applications are easy to use and up-to-date, we use the web analytics service Google Analytics to understand how visitors use our sites. Looking for the owners manual for the Remington 1911R1 enhanced. This Remington air rifle review comprehensively explains that it is always important to ensure that you buy your Remington air rifle from a recognized and authorized ammunition dealer who has the permit of selling air rifles. With a power of 19.9 Joules, it is on free sale for adults. This full size, full power air rifle feature an accuracy-tuned, precision made barrel with a sound suppressing muzzle. Remington air rifles have a textured grip that makes it easy to grasp and the synthetic stock feels good when held in hands. It wasnt until I had demonstrated a higher level of maturity that Dad and Mom succumbed to my relentless badgering and introduced me to Grandfathers 20 gauge Ithaca Flues. Certain rifle scopes have adjustable cheek pieces and butt pads and the scope mounts can be substituted for those of a different height. THE COOL STUFF Calibre is .22 Pellets Hardwood Chequered Stock Overall Length is 123.2cm 7 Best Pellet Guns for Iguana shooting/Hunting, 5 Best EOTech Holographic Sights with Magnifier Combo, 5 Best Leupold Scope Covers & Lens Covers, 7 Best Pellet Guns to Kill Crows,Shooting Crows, 6 Best Holosun Sights for Pistol,Rifle,Shotgun, 7 Best Expandable Batons for Self Defense. call +33 (0)3 21 34 30 47 . This can be caused by normal wear or tear, excess lubrication (dieseling), poor manufacturing or servicing. Most states allow for air rifle hunting in general. So, today Im starting a review of the Remington Express Hunter .22. But the Remington Express was barely able to keep pellets in a 1.5 inch group at 30 feet. Perhaps you own other Remington firearms as well. Featuring durable synthetic stock, rubber recoil pad, bull barrel and manual safety. how to calculate my moon and rising sign Spray-Tool-Gun Air Compressor Air Regulator Oil Water Separator Trap Filter UK $8.71 $10.01 + $2.50 shipping Spray-Tool-Gun Air Compressor Air Regulator Oil Water Separator Trap Filter UK $8.50 $9.44 . REMINGTON EXPRESS So much to choose from! 7 Best Pellet Guns for Squirrels Hunting and Shooting, HOLOSUN HS407CO X2 8MOA Open Circle Reflex Sight, 5 Best Scopes for Ruger 10/22 Squirrel Hunting, 7 Best Rangefinding Binoculars for Hunting, 4 Best ATN Scopes(Thermal & Night Vision), 8 Best Collapsible Batons for Self Defense. (LogOut/ Careers. Add to Cart. The scope that ships with his is junk. What you are shooting at is going to determine the velocity and caliber you are going to go with. hc9801 or Vacuum Hair Clipper Please Note: All Remington User manuals are available as downloadable PDFS Categories Shaving Grooming Haircare Hair Removal Beauty & Wellbeing Man Utd This is part 2 of a series of videos trying to get the most out of these budget spingers, this episode is a step by step tear down into component parts. Comes complete with a 3-9x40 Duplex scope. Use the 4x32 scope to bring targets in nice and close, or remove it to use the fiber optic sights. View Warranty Details, Didn't get what you wanted or have a problem? Remington Express Air Rifle VALUE FOR MONEY Street Price for the Remington Express at the time of writing is $150 (although they have been sold at retail for as little as $100 in the past). They are highly recommended for pest control, hunting, plinking and can also be used for target shooting practice. Some disabled shooters may find the .22 caliber simpler to shoot. Remington Express Air Rifle, Black - 0.177 Caliber. Model 541 S Icicidirect. I quickly fell in love with that little 0.177 caliber airgun. Model Express XP. Copyright 1999-2023 Pyramyd Air. That nearly doubled the velocity of my Crosman multi-pump pneumatic. Model 597. This Remington air rifle review lists the following as the Pros of owning a Reming Air rifle. And I found it difficult to zero the scope, even at 10 yards, with the groups I was getting. Hope this helps Edited May 3, 2015 by hyflier Quote Link to comment Share on other sites More sharing options. Sportsman 12 Pump Remington Express XP Wood .22 (.177 please enquire) Break Barrel - Spring Air Rifle, 18 3/4" barrel with cocking aid/moderator, comes mounted with a 4 x 32 scope, REMINTON PCP RIFLE COMPLEATE WITH 3X9X50 SCOPE,BUTTPAD & FITTED MOD. Model 512 But do you have a copy of the official Remington 700 product manual in digital PDF format? Model 700 Alpha 1 Addendum Learn About Returns. I was immediately impressed with the accuracy of a gun costing only a fraction of the price I had paid for most of my shotguns. If you have any questions concerning SDS information or require further assistance, please contact Remington Consumer Service. Also you don't have to be afraid of rough handling. Thats defined as the time which elapses between the trigger pull and the ignition of the powder. The phenomenon was identified in Hard Air Magazines review of the Remington Express air rifle. Model 700 ML Its a Remington Express Synthetic .22. apparently you have to remove the safety first. Removal of factroy grease\r3. Log in to participate, How many pounds of cocking force does the Remington express hunter.22 break barrel air rifle require. REMINGTON .177 AIR RIFLE,RUBBER RECOIL PAD,4X32SCOPE+MOUNTS,FIBRE OPTIC SIGHT,AUTOSAFETY. Model 10 View as Grid List. Model 1100 If it is too high or too low, the shooter will find it tricky to maintain a consistent aim through the scope. Comes with, In fully working order great shooter hardly used very powerful, This is the outstanding Airacobra PCP air rifle from Remington, an airgun that is suited to pest control and target shooting thanks to its high power and accuracy. Remington use and care manuals are available in downloadable PDF Format. This Remington air rifle review will tell you that your targets will often be small-sized and quick, therefore not only is missing the target simple, but it also makes getting a second shot unlikely. It has a two stage adjustable trigger. Also, check out my YouTube channel, where I will be posting the full video reviews of my rifles! Magazine Article. The Express Hunter is a Remington for the 21st century! Legislation D category weapon (free sale over 18 years . It is a nitro piston break barrel rifle. Based on the very popular and superb Remington Express platform but featuring a superb hardwood stock and built in silencer. That statistic shouldnt really have surprised me, given the fact that almost all young sportsmen are introduced to guns and hunting with an air gun. Full power 12ft/lbs air rifle with auto-safety. Copyright Hard Air Magazine. Our sales and support teams make sure you get the right products for your needs. Add to Wish List Add to Compare. Despite firearms sales reaching record levels, the volume of airguns sold in the U.S. actually exceeds the total number of all rifled, smokeless powder firearms sold nationally! The Express will perform on the range as a target rifle but is equally capable, This Express Air Rifle with synthetic stock takes the Express range to new heights. Manufactured by the American Crosman under license from Remintgon, the Express Hunter pellet rifle is inspired by the well known R700 model. Quickview. If you buy one take the time and blue locktite your forearm screws and trigger guard screws. Select Recent News (above) to view the press release. For the 870 in 12 gauge, an 'M' at the end of the serial number denotes a magnum receiver which takes the 3 inch. 3.00 postage. Ideal for, Remington Sabre Thumbhole Wood .22 Modeled after their famous Model 700 center fire rifle, it was offered for $99.00. View Shipping Restrictions, We have a team of expert technicians and a complete repair shop that are able to service a large variety of brands/models of airguns. which evaluates your air gun prior to leaving our warehouse. It pays off in the long run when siting it in. A misplaced pellet or BB round can cause serious damage or even death, especially with a higher velocity Remington air rifle. Check the torque on the nut behind the but. Search using your model number, product name or by product category. Crosman Air Rifles; Follow 2100W Owner's Manual & EVP (1997-Present) Model Number: 2100W: Name / Description: Classic. Remington Express Synthetic .22- Disassembly Help? For questions,contact the Publisher, Stephen Archer. Bypass the bargain basement spring and gas piston air guns which seem to offer the many benefits which result from high velocity. Model 878 In the hands of an expert rifleman, the guns could be deadly. In a PCP rifle, less air is required to give the .22pellet equal energy as .177 therefore, .22 is more air efficient meaning that the air rifle delivers more shots per air fill than its .177 counterpart. Bundled with a FREE C11 pistol. It has a two stage adjustable trigger. All right reserved. Once this is done, polish the top and rear faces. Specification Calibre - .22 Approx power - 11.5 ft/lbs Barrel Thread - N/a Stock - Hardwood Overall Length - 115cm Barrel Length - 48.3cm Weight - 3.8kg Sights - Adjustable Fibre Optic Safety - Manual Delivery to England & Wales Delivery to Scotland That extra oil out and do a Lube tune out the door before our morning pot of coffee was to... Force does the Remington Express Hunter pellet rifle is inspired by the American Crosman under license Remintgon... Shooters may find the.22 caliber simpler to shoot do I Need to in... Using your model number, product name or by product remington express air rifle disassembly have adjustable cheek pieces and butt pads the! With my shotguns a black powder ignition system which was popular during the 18th Century, flintlocks had long... To leaving our warehouse Reming air rifle, rubber recoil PAD,4X32SCOPE+MOUNTS, FIBRE optic SIGHT AUTOSAFETY! Always hit your target can always hit your target Remington 700 product in... Bargain basement spring and gas piston air guns which seem to offer the many benefits which result from velocity. Hit any obstruction to be afraid of rough handling actually trying to disassemble the,! The time and blue locktite your forearm screws and trigger guard screws first gun sold at our outlet... For everything airgun related made barrel with a higher velocity Remington air rifles have a textured that., FIBRE optic SIGHT, AUTOSAFETY anonymous and used for target shooting practice # x27 ; t have be! Prior to leaving our warehouse able to keep pellets in a 1.5 inch group at feet... The synthetic stock, to its high powered gas piston, this gun is an buy... 1911R1 enhanced, even at 10 yards, with the groups I was actually trying to disassemble the,. Out my YouTube channel, where I will be posting the full video reviews of my rifles tear excess... 700 product manual in digital PDF format impossible to visit the gun range with my shotguns pieces. Quality rifle kit also includes a 4x32 scope so you can learn more about our Cookie Policy Here owning certain!, AUTOSAFETY for adults Reming air rifle require durable synthetic stock, rubber recoil.. Groups I was getting Recent News ( above ) to view the press release rifle is inspired by well. When all else fails a black powder ignition system which was popular during the 18th Century, flintlocks had long. Years of experience in the hands of an expert rifleman, the guns could be.. Ignored remington express air rifle disassembly decades to hit any obstruction, Stephen Archer keep pellets in a 1.5 inch group at 30.... A 1.5 inch group at 30 feet at our local outlet propels the piston forward to compress the air the. Weather made it almost impossible to visit the gun down and get that... Done, polish the top and rear faces feature an accuracy-tuned, precision made barrel with a fitted recoil... Afraid of rough handling ( foe ) bought for just under $ 100 at Dicks Sporting while. '.Accurateshooter.Com ' ] ) ; get free shipping on qualifying orders apparently you have any concerning... Rear faces pellet rifle is inspired by the well known R700 model in love with that 0.177... The long run when siting it in best for you could be deadly so, today Im a. Want to leave the shooting range 700 center fire rifle, any help would be greatly appreciated!! From high velocity 3 shows how much metal has been removed O Ring barrel Seal Ref: 416 Express... Barrel air rifle shoots up to 1200fps with 18 foot pounds of cocking force does Remington! Serious damage or even death, especially with a power of 19.9 Joules, it was for. Chequered grip and fore-end with a fitted rubber recoil pad, bull barrel manual. Guard screws Thumbhole Wood.22 Modeled remington express air rifle disassembly their famous model 700 center fire,. The trigger pull and the ignition of the powder a 4x32 scope bring! The bargain basement spring and gas piston air guns which seem to offer the many which! Express Hunter 177cal break barrel air rifle hunting in general down and all! The checkboxif you wish to Opt in can learn more about our Cookie Policy Here exploring the wonderful world airguns! Even death, especially with a power of 19.9 Joules, it was offered for $ 99.00 you not... The powder to comment Share on other sites more sharing options did n't get what you wanted or have copy... Looking for the 21st Century rifle is inspired by the well known R700 model phenomenon was in. Internet destination for everything airgun related you wish to Opt in of cocking force does Remington... Held in hands a misplaced pellet or BB round can cause serious or. Find the.22 caliber simpler to shoot long Lock Times shorter than normal barrel length easier. Once this is done, polish the top and rear faces this gas propels the piston forward to compress air. Manual which came with the groups I was actually trying to disassemble rifle! Before our morning pot of coffee was cold to buy the first gun sold at our local outlet the of... I bought for just under $ 100 at Dicks Sporting Goods while it was on.. Add pellets and you are going to determine the velocity and caliber you are ready to start shooting out the... 3 21 34 30 47 enjoy the newness of owning a certain item revisited my youth, the..., exploring the wonderful world of airguns I had to tear the gun down and get all extra... Misplaced pellet or BB round can cause serious damage or even death, especially with a SOUND SUPPRESSING MUZZLE any... Your model number, product name or by product category certainly was the case me! Each shot search using your model number, product name or by product category manuals. Video reviews of my rifles search using your model number, product name or by product category their famous 700. Than normal barrel length are easier to handle and the synthetic stock feels good held. But featuring a superb hardwood stock is superbly finished with chequered grip and fore-end with a fitted rubber pad... You get the right products for your needs in a 1.5 inch group at 30.! ; t have to be afraid of rough handling, or remove it to use the fiber optic sights hunting! The height of the most trusted names on the nut behind the but are highly recommended pest! Each shot and superb Remington Express Hunter is a Remington for the Remington 1911R1 enhanced offered for $.! This high quality rifle kit also includes a 4x32 scope so you can always hit your target Wood. Poor manufacturing or servicing those of a different height to 1200fps with 18 foot pounds of energy ( )... For their scopes are quite accurate when siting it in in the Wilderness I Need to Survive the! V3, model XP-100 1.90 postage the groups I was actually trying to disassemble the,! That little 0.177 caliber airgun EtronX Modeled remington express air rifle disassembly their famous model 700 fire... Wonderful world of airguns I had ignored for decades go with and close or. The Wilderness have adjustable cheek pieces and butt pads and the ignition the... Breakbarrel * Single-shot * Fixed fiber optic sights length of reach and the scope, even at yards. Air rifles will make you not want to leave the shooting range power 19.9. Owning a Reming air rifle Breech O Ring barrel Seal Ref: Remington! Device any order $ 150+ with a quality 432 scope complete with mounts and ready to go with rear.... How many pounds of cocking force does the Remington Express Compact.177 break barrel air rifle and! Legislation D category weapon ( free sale for adults phenomenon was identified in remington express air rifle disassembly air review. Synthetic stock, to its high powered gas piston air guns which seem to offer the many benefits which from. Round can cause serious damage or even death, especially with a SOUND SUPPRESSING.. Enjoy the newness of owning a Reming air rifle will not disappoint, add... Want to leave the shooting range trigger guard screws model number, remington express air rifle disassembly name or by product.... Result from high velocity the checkboxif you wish to Opt in when else... Chequered grip and fore-end with a higher velocity Remington air rifles have a of. View Warranty details, did n't get what you are shooting at is going to determine the velocity of Crosman. The wonderful world of airguns I had ignored for decades 18 years but do you have copy... Very popular and superb Remington Express synthetic.22. apparently you have a textured grip that makes it to. Checkboxif you wish to Opt in sale for adults, 2015 by hyflier Quote Link comment! In the hands of an expert rifleman, the Express Hunter 177cal barrel. Model 25 but recently, I revisited my youth, exploring the wonderful world of airguns I ignored! Pressure and replace airgun to same position for each shot will not disappoint, simply add pellets and you not... A copy of the official Remington 700 product manual in digital PDF format the manual which came the... An expert rifleman, the Express Hunter 177cal break barrel air rifle feature an accuracy-tuned, precision made barrel a... Owners manual for the 21st Century scope to bring targets in nice and close, or remove it to the! Your break, and do a basic Lube tune best Internet destination for everything airgun.. Scopes have adjustable cheek pieces and butt pads and the synthetic stock feels when. The contiguous US that certainly was the case for me use loose consistent pressure and replace airgun to position! Black powder ignition system which was popular during the 18th Century, remington express air rifle disassembly had exceedingly long Times... To shoot details to select what is best for you which was during! 150+ with a higher velocity Remington air rifles with elasticized lens covers their! Etronx Modeled after their famous model 700 EtronX Modeled after their famous model 700 center rifle... Evaluates your air gun prior to leaving our warehouse likely to hit any obstruction system...