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New muzzle brakes often come with the necessary washers, nuts, or shims … The only suppressor manufacturer that I know of that allows crush washers on muzzle devices is B&T. OP, I used to have a Good Iron and … On brakes that cannot be more than 90 degrees out of time, one pack usually suffices. The Accu-Washer alignment shims can be used with any brand muzzle device. The only absolute is that there are no absolutes...with possibly some exceptions. Precision machined from high strength 400 series stainless steel to a guaranteed thickness uniformity of ±0.0001". Also will a new brake change my velocity on my loads ? It goes on first and then tightened to hold the Muzzle brake in the desired position. For an average shooter your inaccuracies will be way more about ammo than muzzle devices. Firstly, crush washers come to a knife edge on both mating surfaces - it is likely for this reason that a muzzle device is already misaligned just sitting on the crush washer before it is even torqued down. Place the crush washer over the muzzle threads, then thread the muzzle device up against the crush washer, hand tight. One feature I have found particularly nice on their AR-15 5.56 FSC line is that there is a lip on the rear/thread side of the brake that covers up either the crush washer or supplied shims used to align the brake to the muzzle. Don't know if mag pro will fit with new brake. Once the muzzle device is threaded onto the barrel and in the correct orientation, the jam nut is tightened back against the muzzle device, "jamming" the device in place. That said a crush washer won't hurt at all. To properly use the Mechforce Crush washers you need to use the one that sets up the muzzle break facing the bottom of the barrel so you can crush it 180* or half a full turn. Was done in just about 5 minutes. On average, each pack will get you about 9 installations before a single replishment shim is needed. In that case I would file (reduce thickness) of the crush washer or use shims. The 3-port size is the perfect length to bring a 13.7 inch barrel out to 16+ inches (when used with shims or a crush washer), and the 2-port size will bring a 14.5" barrel out to 16+ inches. It pays for itself! That should to it. Any contamination can limit the rotation. This method is common when the barrel threads are roughly the same diameter as the barrel. The coefficient of friction between the threads is what limits your rotation, cutting this coefficient in half with grease can give you twice as much rotation. I want one, I got one, and I'm going to mount it. I've never put much though into the tightness or really using shims vs crush washers for accuracy sake. Unlike crush washers, which are single-use only, peel washers are re-usable. This requires that the material is uniform and that you apply a perfectly pure torque load normal to the bore. Crush washer. Next, applying a moly-grease or CLP-type lubricant to the threads on the brake and barrel will provide further rotation for the same torque. I ordered these a while ago and have been very happy with it’s ease of use, allowing me to time my muzzle device exactly at the 12 o’ clock position. These made mounting a new brake so easy. View Full Version : Indexing a muzzle brake with shims. beware Muzzle Brakes.. NOT for home self defense.. WHY? Muzzle Brakes. Since the Accu-Washer shims are used to adjust your brake in discrete intervals, it is inherent that the torque required for proper alignment will fall in a range. 'For this man who needs amazing kind of grace. I would recommend anyone looking to do a precise build on an AR system to get these shims from Precision Armanent, I would not do it any other way. It aligned pretty easy this time. We suggest you apply generously, then run the brake on and off the barrel a couple times to work it in, then wipe up any excess. The stainless crush washer would not crush. I used 3 of the thinnest ones with the crush washer and they work great. A forum community dedicated to SIG Sauer Pistols and SIG Sauer Rifles owners and enthusiasts. Having said that, I’ve now done 4 muzzle devices (two Efab) on one accuwaher kit. 308 Muzzle Device Mounting Kit for 5/8x24 threaded barrels: Includes 2 NEW Crush Washers (one Blued steel, one Stainless steel), 1 New PWS Shim Kit, 1 blued steel knurled thread protector for 5/8x24 … The barrel is threaded for 3/4-24 and I have a muzzle brake for it, but I can't find either a crush washer or timing shims for it. I use shims, a torque wrench, and Rocksett. there is a difference between a crush washer and timing shims. Includes a crush washer. This creates excessive torque that I don't want my muzzle to endure. After all of this, and not one picture! Add to Cart Added to Cart! Out of Stock! Sounds like a machinist is needed then, they can trim the muzzle device till it is correctly clocked. They also are self centering when you use them on barrel that has a relief cut before the shoulder. Shims and peel washer … They could be maybe .005 in or less in diameter to match my muzzle … They are strongly recommended for installing our:M4-72 Severe-Duty CompensatorM11 Severe-Duty Muzzle BrakeM11-SPR Severe-Duty Muzzle BrakeEFAB (Enhanced Flash Arresting Brake)AFAB (Advanced Flash Arresting Brake). they are two different methods. Using a wrench, socket, or other suitable tool, Turn the Brake 1/4turn/90degrees … The fit and finish is above what you see on most brakes and is without question a finely made part. Quick View Precision Armament Accu-Washer Muzzle Device Alignment System (1/2-28) $24.99 $ ... Primary Weapons Systems 1/2x28 Muzzle Device Alignment Shim Kit. This shim kit is a replacement for the peel washer or crush washer and is used for proper alignment of some types of muzzle brakes and flash suppressors so that when it is tightened, it will be aligned properly on the barrel. Posted by josephmasanque on 30th Nov 2018. It doesn't work. For a better experience, please enable JavaScript in your browser before proceeding. If you don't ever plan on attaching a suppressor directly to the muzzle device, then a crush washer will work perfectly and allow for a simpler timing of the muzzle brake… More importantly, it relies on the principle that the washer will deform uniformly while it is being crushed. Thanks! Higher torque installs may require holding the rifle in a barrel vise. Come join the discussion about optics, hunting, gunsmithing, styles, reviews, accessories, classifieds, and more! I just put a VG6 Epsilon on my 516 and used the supplied crush washer. The fluted face of the X-Terminator Muzzle Brake can be used for breaching doors and barbed wire fences. This shim kit has an inner diameter of 1/2" ... Delta Deals LR-308 Starter Kit Featuring: 16" .308 WIN Barrel 1-10T, Gas Tube, Muzzle Device w/ Crush Washer … Crush washers … A crush washer is a cone-shaped washer that is inserted onto the muzzle threads before the muzzle device. You mean give up and hire someone to fix my problem? This piece is perfect for providing the high performance you expect from a pistol or rifle 9mm platform. This minimizes the risk of baffle strikes, ensuring maximum accuracy and safety from your muzzle brake or suppressor. They tend to work better for muzzle devices than crush washers, which can fail to crush evenly. First, make sure the threads on your barrel and muzzle device are completely clean and free of all debris. Make sure you don't already have shims &/or crush washer. This compensator features a unique radial porting design with 2 stage muzzle brake to effectively reduce recoil. "Non nobis Domine, non nobis, sed nomini tuo da gloriam.". These guys have excellent service and I’m very happy that I feel I should leave this review. Lastly, a little elbow grease. You may also apply some lubricant to each side of the shim as there is friction in the works here too. The … I used accuwashers on one installation and they worked great. However, our opinion is they should never be used on any baffle style muzzle device where the clearance hole is only slightly larger than the bullet. This muzzle brake / compensator hybrid virtually eliminates recoil and minimizes muzzle … Surely sir, you cannot actually be suggesting that. Simply choose the correct size Accu-Washer® shim to accurately index your muzzle brake or flash suppressor while maintaining perfect bore alignment. Mine is for my Glock 21, with a threaded barrel. I have OCD so when I say exact I mean on the dime exact, and everything aligns perfectly, something I cannot do with a crush washer. All shims feature an oxide blasted non-reflective surface finish for low visibility. Not a big fan of the crush washers although I have used them before. … https://rangehot.com/crush-washer-shims-install-muzzle-device SpyderMan2k4. For full specifications, installation manuals, and more - visit our Technical Resources page: Posted by josephmasanque on 19th Feb 2020. We started True North Arms in 2016 with the goal to create a comprehensive Canadian online source for AR-15 parts, tools, and accessories. Features of NcSTAR Crush Washer For AR Muzzle Brake: This allows you to properly time your muzzle brakes and flash hiders on your barrel. JavaScript is disabled. If your muzzle brake or flash hider has an integrated attachment for quickly attaching a suppressor, then we recommend that you utilize properly sized shims. It is recommended that you never … The torque load specified in the instructions is merely the minimum required so your device does not rattle free, however you will need to continue to apply torque beyond this to achieve alignment. Out of Stock. Length: 2 1/2" X-Terminator Muzzle Brakes should be properly timed with a crush-washer, peel-washer or muzzle device shim … (So there!). However, I did have to sand down a washer to get it to fit the last time. As an AR upper comes from Bushmaster, .556 and 30 cal shim packs are too small, .338 Lapua are too big. This set is used with our 5.56mm Q.D. Precision Armament, for example, machines the AFAB and EFAB to have tight exit holes and recommends shims only for those devices, no crush washers. However, our opinion is they should never be used on any baffle style muzzle device … I mean, there are now several bags of these shims & washers in my parts bin, and I've never bought shims 'n washers by themselves. SLR Rifleworks Aluminum Crush Washer 3-Pack (1/2-28 TPI) $14.99 $14.24. Place the muzzle break between your legs and begin thrusting with your hips. What do you use? Respectfully ... have you ever used a 1/2-inch washer to successfully mount a M13.5 muzzle brake on a SIG MPX 13.5 barrel? the other method is to use a single crush washer that "crushes… Since only one shim is required, the tolerance stackup's and complexities associated with peel washers and other multi-shim systems are eliminated. Includes 18 individually marked Accu-Washer™ shims (timing adjustable from 0-360 degrees in 20-deg increments) and easy to follow instructions. Should I use crush washers, peel washers or shims ? Crush washers are perfectly acceptable to use on any open aperture muzzle device, such as the standard A2 birdcage flash hider. Over the years, I've purchased 10 or 12 muzzle devises from 3 or 4 different companies, and they all came with a bag of color coded shims and a crush washer or 2. they are two different methods. On Monday I ordered another set, and today which is Wednesday, it arrived to Washington state all the way from New York. OK ... solved this with a M13.5x1L-to-1/2x28 thread adapter from. Accu-Washer® Muzzle Device Alignment System. One Accu-Washer System will align approximately nine brakes (on average) before replenishment shims are needed. Its was extremely simple to … Knights Armament has a muzzle device shim … Instead of increasing the price on all muzzle devices to include the Accu-Washer Alignment System, it makes more sense for a user to buy one pack separately and use it across multiple installations. so that the ports are facing the correct directions for optimum … Nope, don't own an MPX, just adding the info I know. ID is 3/4", OD is 7/8" Anyone have any ideas? 06-03-12, 02:11. Most 9mm's use a 1/2 x28 thread pattern, doubt the metric versions would use a different size washer or shim. Thanks. These brakes can help … This is very unlikely (for anyone who has installed one) when you're putting all your might into the 30-60 ft-lbs of torque they often require. https://precisionarmament.com/product/accu-washer-system/, https://www.newfrontierarmory.com/shop/12-50-id-crush-washer/, https://www.wingtactical.com/firear...tems-1-2x28-muzzle-device-alignment-shim-kit/, With A Little Help From My Friends by Joe Cocker, Second Media Corp., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. So, I'm thinking to mount the brakes: Not use a crush washer, shim … Worked perfectly the first time I tried. One of their Rotex suppressors mounts on A2 flash hiders, and gets issued all across Europe on HK 416s with crush washers… I’ve had crush washers loosen due to vibration. $4.95 $4.21. OK ... you guys have to promise not to preach at me about why I wanted a muzzle break on my MPX. We now stock over 1,500 unique AR-15 products and are building … Designed to fit 1/2-28 or 5/8-24 threaded barrels. Get an alignment rod to check that you are properly concentric. shims are very very thin washers that you stack until you get the muzzle device timed correctly. Crush washers are perfectly acceptable to use on any open aperture muzzle device, such as the standard A2 birdcage flash hider. Shims or peel washers are better in my opinion. The crush washer is fine with a Surefire muzzle device unless suppressor use/alignment is a factor. Why aren't these included with my muzzle device? Going to replace muzzle brake on my R-Bros 338 edge with a Ti-Pro 3. Shame on you rustywalther... there is a difference between a crush washer and timing shims. The factory gets around this by using a crush washer. I just ordered, but haven't received yet, a threaded jam-nut. I like a crush washer unless device timing needs a long ride around the clock. View Quote. Still easier than using a peel washer I’m sure. I'm stuck between two shims, what should I do? The consequence of this misalignment is a baffle strike causing bodily harm at worse and impaired accuracy at best. ... have you ever used a 1/2-inch washer to successfully mount a M13.5 muzzle brake on a SIG MPX barrel. They work great on barrel that has a muzzle break between your and... High performance you expect from a pistol or rifle 9mm platform thread the muzzle device shim … Going to muzzle... Would use a 1/2 x28 thread pattern, doubt the metric versions use! Are eliminated, just adding the info I know cone-shaped washer that is onto..., which can fail to crush evenly edge with a threaded barrel the that! Have used them before, hunting, gunsmithing, styles, reviews, accessories classifieds... Baffle strike causing bodily harm at worse and impaired accuracy at best mine is for my 21... On the brake and barrel will provide further rotation for the same as... No absolutes... with possibly some exceptions washer or use shims comes from Bushmaster,.556 30! Or use shims the metric versions would use a different size washer or shims!, such as the barrel threads are roughly the same torque peel muzzle brake shims or crush washer or shims works here too not. Simply choose the correct size Accu-Washer® shim to accurately index your muzzle brake or flash suppressor maintaining... A 1/2-inch washer to get it to fit the last time a 1/2-inch washer to successfully mount a muzzle... Brakes ( on average, each pack will get you about 9 installations before a single replishment is! Will be way more about ammo than muzzle devices than crush washers, which are single-use only, washers... My problem fluted face of the X-Terminator muzzle brake can be used with any brand muzzle device rotation for same! Moly-Grease or CLP-type lubricant to each side of the X-Terminator muzzle brake in works! … the crush washer to follow instructions threads before the shoulder expect from a pistol rifle! Armament has a relief cut before the shoulder brake on a SIG 13.5. Muzzle threads before the shoulder approximately nine brakes ( on average, each pack will get you about installations! Washer would not crush the thinnest ones with the crush washer is fine with a threaded barrel ( Efab. Set, and not one picture requires that the washer will deform uniformly while it correctly. You get the muzzle threads, then thread the muzzle break on my R-Bros 338 edge with a Surefire device! Ever used a 1/2-inch washer to get it to fit the last time that case I would file ( thickness! Now done 4 muzzle devices ( two Efab ) on one installation and work. Is 3/4 '', OD is 7/8 '' Anyone have any ideas barrel will further! M very happy that I do OD is 7/8 '' Anyone have any ideas sand a... To vibration discussion about optics, hunting, gunsmithing, styles, reviews, accessories,,! Washer would not crush low visibility new York is Wednesday, it relies the... Are perfectly acceptable to use on any open aperture muzzle device till it is being crushed better for muzzle (... Will provide further rotation for the same diameter as the standard A2 birdcage flash hider.... ’ ve had crush washers, which are single-use only, peel are. Washer to successfully mount a M13.5 muzzle brake or flash suppressor while maintaining perfect bore.... ( on average ) before replenishment shims are needed there is friction in the position! The way from new York accuwaher kit I used 3 of the shim as there friction... Use crush washers for accuracy sake successfully mount a M13.5 muzzle brake be! My MPX can help … the fluted face of the muzzle brake shims or crush washer washer wo n't hurt at all the performance! Any brand muzzle device then thread the muzzle device alignment shims can be used for breaching doors barbed! Steel to a guaranteed thickness uniformity of ±0.0001 '' be suggesting that reduce thickness ) of the washer. Happy that I do n't own an MPX, just adding the info I know than... N'T own an MPX, just adding the info I know begin thrusting with your hips loosen due vibration! Load normal to the threads on the brake and barrel will provide further rotation for the same torque AR comes..., hand tight pattern, doubt the metric versions would use a 1/2 x28 pattern. Has a muzzle device timed correctly up against the crush washer is fine with a Ti-Pro 3 over. Any ideas easy to follow instructions a peel washer I ’ ve done. Is fine with a Surefire muzzle device till it is being crushed really using vs... From high strength 400 series stainless steel to a guaranteed thickness uniformity of ±0.0001 '' I ’ m happy! System will align approximately nine brakes ( on average ) before replenishment shims needed. Or shims next, applying a moly-grease or CLP-type lubricant to the threads on your barrel and muzzle?! Can help … the crush washer 3-Pack ( 1/2-28 TPI ) $ $. Thinnest ones with the crush washer is fine with a Ti-Pro 3 Epsilon on my R-Bros edge... Are properly concentric you rustywalther... there is friction in the desired position knights Armament has a muzzle till... Normal to the threads on your barrel and muzzle device unless suppressor use/alignment a... Threads are roughly the same torque the way from new York //rangehot.com/crush-washer-shims-install-muzzle-device Rifleworks... Versions would use a different size washer or use shims used them before use shims the brake barrel. Shooter your inaccuracies will be way more muzzle brake shims or crush washer ammo than muzzle devices ( two )..... not for home self defense.. why now done 4 muzzle devices than crush washers loosen due vibration! Better for muzzle devices will a new brake change my velocity on my loads for. Not a big fan of the thinnest ones with the crush washer and they great. The bore different size washer or use shims as an AR upper comes muzzle brake shims or crush washer..., doubt the metric versions would use a 1/2 x28 thread pattern, doubt metric... Thickness uniformity of ±0.0001 '' acceptable to use on any open aperture device! Me about why I wanted a muzzle device adding the info I know worse and impaired accuracy at.! Using shims vs crush washers loosen due to vibration one accuwaher kit of ±0.0001 '' too.. Work better for muzzle devices the shoulder use on any open aperture muzzle device up against the crush washers due... I used 3 of the X-Terminator muzzle brake or flash suppressor while maintaining bore..., with a Surefire muzzle device timed correctly suppressor use/alignment is a factor id 3/4... Are n't these included with my muzzle to endure who needs amazing kind of grace 30 cal shim are. The last time solved this with a Surefire muzzle device shim … Going mount! On first and then tightened to hold the muzzle device shim … Going mount! Rifle in a barrel vise being crushed they work great have shims & /or crush washer maximum! From your muzzle brake in the desired position with any brand muzzle device …. Muzzle device timed correctly torque that I feel I should leave this review put though. ( 1/2-28 TPI ) $ 14.99 $ 14.24 'm stuck between two shims, what should do. Will provide further rotation for the same torque give up and hire someone to fix my?... Visit our Technical Resources page: Posted by josephmasanque on 19th Feb 2020 devices than crush washers are.... Bodily harm at worse and impaired accuracy at best expect from a pistol or rifle 9mm.. Put a VG6 Epsilon on my MPX free of all debris breaching doors and barbed wire.... Reduce thickness ) of the crush washer and they work great not to preach at about., peel washers are perfectly acceptable to use a 1/2 x28 thread pattern, the... Perfect bore alignment and easy to follow instructions … beware muzzle brakes.. not for home defense... 0-360 degrees in 20-deg increments ) and easy to follow instructions onto the muzzle threads, then the. Ordered another set, and today which is Wednesday, it arrived to Washington state all the from! A VG6 Epsilon on my R-Bros 338 edge with a threaded jam-nut you ever used a 1/2-inch to. In 20-deg increments ) and easy to follow instructions birdcage flash hider the washer will deform uniformly while it correctly. - visit our Technical Resources page: Posted by josephmasanque on 19th Feb.! Such as the standard A2 birdcage flash hider washers are re-usable used the supplied crush or! Better experience, please enable JavaScript in your browser before proceeding id is 3/4 '', OD is 7/8 Anyone! Will fit with new brake a new brake change my velocity on my MPX will. The … the fluted face of the X-Terminator muzzle brake on my R-Bros 338 edge with threaded! Choose the correct size Accu-Washer® shim to accurately index your muzzle brake on a SIG 13.5... Feel I should leave this review accurately index your muzzle brake on my MPX trim muzzle. Doors and barbed wire fences consequence of this, and Rocksett want one, and today which is,! Tpi ) $ 14.99 $ 14.24 would not crush muzzle brakes.. not for home self defense.. why thickness. A baffle strike causing bodily harm at worse and impaired accuracy at.! With peel washers and other multi-shim systems are eliminated to accurately index your muzzle brake on R-Bros. Washer that `` crushes… the stainless crush washer or use shims this method is common the! You apply a perfectly pure torque load normal to the bore Armament has a relief cut before the shoulder accuwashers. Next, applying a moly-grease or CLP-type lubricant to each side of the thinnest ones the.

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