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. beware Muzzle Brakes.. NOT for home self defense.. WHY? The only absolute is that there are no absolutes...with possibly some exceptions. Any contamination can limit the rotation. One Accu-Washer System will align approximately nine brakes (on average) before replenishment shims are needed. Posted by josephmasanque on 30th Nov 2018. We now stock over 1,500 unique AR-15 products and are building … It is recommended that you never … 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. Crush washers are perfectly acceptable to use on any open aperture muzzle device, such as the standard A2 birdcage flash hider. New muzzle brakes often come with the necessary washers, nuts, or shims … Shims and peel washer … One of their Rotex suppressors mounts on A2 flash hiders, and gets issued all across Europe on HK 416s with crush washers… Out of Stock! 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. Most 9mm's use a 1/2 x28 thread pattern, doubt the metric versions would use a different size washer or shim. 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. Also will a new brake change my velocity on my loads ? In that case I would file (reduce thickness) of the crush washer or use shims. Get an alignment rod to check that you are properly concentric. These made mounting a new brake so easy. The stainless crush washer would not crush. They could be maybe .005 in or less in diameter to match my muzzle … I used accuwashers on one installation and they worked great. I just ordered, but haven't received yet, a threaded jam-nut. shims are very very thin washers that you stack until you get the muzzle device timed correctly. On Monday I ordered another set, and today which is Wednesday, it arrived to Washington state all the way from New York. 'For this man who needs amazing kind of grace. For a better experience, please enable JavaScript in your browser before proceeding. (So there!). Crush washers … The Accu-Washer alignment shims can be used with any brand muzzle device. Crush washers are perfectly acceptable to use on any open aperture muzzle device, such as the standard A2 birdcage flash hider. 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. They tend to work better for muzzle devices than crush washers, which can fail to crush evenly. Lastly, a little elbow grease. The only suppressor manufacturer that I know of that allows crush washers on muzzle devices is B&T. This compensator features a unique radial porting design with 2 stage muzzle brake to effectively reduce recoil. Nope, don't own an MPX, just adding the info I know. OK ... solved this with a M13.5x1L-to-1/2x28 thread adapter from. Thanks! This piece is perfect for providing the high performance you expect from a pistol or rifle 9mm platform. 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. Shims or peel washers are better in my opinion. 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? I used 3 of the thinnest ones with the crush washer and they work great. 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. Should I use crush washers, peel washers or shims ? The … Still easier than using a peel washer I’m sure. I use shims, a torque wrench, and Rocksett. This requires that the material is uniform and that you apply a perfectly pure torque load normal to the bore. Don't know if mag pro will fit with new brake. That said a crush washer won't hurt at all. Features of NcSTAR Crush Washer For AR Muzzle Brake: This allows you to properly time your muzzle brakes and flash hiders on your barrel. Place the muzzle break between your legs and begin thrusting with your hips. For full specifications, installation manuals, and more - visit our Technical Resources page: Posted by josephmasanque on 19th Feb 2020. On brakes that cannot be more than 90 degrees out of time, one pack usually suffices. Make sure you don't already have shims &/or crush washer. Includes a crush washer. So, I'm thinking to mount the brakes: Not use a crush washer, shim … OP, I used to have a Good Iron and … Sounds like a machinist is needed then, they can trim the muzzle device till it is correctly clocked. However, our opinion is they should never be used on any baffle style muzzle device … 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. Simply choose the correct size Accu-Washer® shim to accurately index your muzzle brake or flash suppressor while maintaining perfect bore alignment. This muzzle brake / compensator hybrid virtually eliminates recoil and minimizes muzzle … Shame on you rustywalther... there is a difference between a crush washer and timing shims. Precision Armament, for example, machines the AFAB and EFAB to have tight exit holes and recommends shims only for those devices, no crush washers. It doesn't work. It aligned pretty easy this time. there is a difference between a crush washer and timing shims. All shims feature an oxide blasted non-reflective surface finish for low visibility. so that the ports are facing the correct directions for optimum … "Non nobis Domine, non nobis, sed nomini tuo da gloriam.". 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. 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). 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 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. they are two different methods. JavaScript is disabled. That should to it. You may also apply some lubricant to each side of the shim as there is friction in the works here too. On average, each pack will get you about 9 installations before a single replishment shim is needed. 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. the other method is to use a single crush washer that "crushes… $4.95 $4.21. I'm stuck between two shims, what should I do? I've never put much though into the tightness or really using shims vs crush washers for accuracy sake. The crush washer is fine with a Surefire muzzle device unless suppressor use/alignment is a factor. 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 … This creates excessive torque that I don't want my muzzle to endure. What do you use? After all of this, and not one picture! they are two different methods. 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. First, make sure the threads on your barrel and muzzle device are completely clean and free of all debris. It pays for itself! 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 … More importantly, it relies on the principle that the washer will deform uniformly while it is being crushed. 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. Out of Stock. I want one, I got one, and I'm going to mount it. Place the crush washer over the muzzle threads, then thread the muzzle device up against the crush washer, hand tight. Length: 2 1/2" X-Terminator Muzzle Brakes should be properly timed with a crush-washer, peel-washer or muzzle device shim … Thanks. For an average shooter your inaccuracies will be way more about ammo than muzzle devices. Going to replace muzzle brake on my R-Bros 338 edge with a Ti-Pro 3. 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. This minimizes the risk of baffle strikes, ensuring maximum accuracy and safety from your muzzle brake or suppressor. As an AR upper comes from Bushmaster, .556 and 30 cal shim packs are too small, .338 Lapua are too big. Its was extremely simple to … The fluted face of the X-Terminator Muzzle Brake can be used for breaching doors and barbed wire fences. A crush washer is a cone-shaped washer that is inserted onto the muzzle threads before the muzzle device. Having said that, I’ve now done 4 muzzle devices (two Efab) on one accuwaher kit. Come join the discussion about optics, hunting, gunsmithing, styles, reviews, accessories, classifieds, and more! Knights Armament has a muzzle device shim … https://rangehot.com/crush-washer-shims-install-muzzle-device However, I did have to sand down a washer to get it to fit the last time. You mean give up and hire someone to fix my problem? The fit and finish is above what you see on most brakes and is without question a finely made part. These brakes can help … The consequence of this misalignment is a baffle strike causing bodily harm at worse and impaired accuracy at best. Since only one shim is required, the tolerance stackup's and complexities associated with peel washers and other multi-shim systems are eliminated. 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. ID is 3/4", OD is 7/8" Anyone have any ideas? This set is used with our 5.56mm Q.D. Includes 18 individually marked Accu-Washer™ shims (timing adjustable from 0-360 degrees in 20-deg increments) and easy to follow instructions. I just put a VG6 Epsilon on my 516 and used the supplied crush washer. These guys have excellent service and I’m very happy that I feel I should leave this review. It goes on first and then tightened to hold the Muzzle brake in the desired position. Unlike crush washers, which are single-use only, peel washers are re-usable. SpyderMan2k4. A forum community dedicated to SIG Sauer Pistols and SIG Sauer Rifles owners and enthusiasts. We started True North Arms in 2016 with the goal to create a comprehensive Canadian online source for AR-15 parts, tools, and accessories. Surely sir, you cannot actually be suggesting that. Worked perfectly the first time I tried. I like a crush washer unless device timing needs a long ride around the clock. Was done in just about 5 minutes. View Quote. I’ve had crush washers loosen due to vibration. 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. 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. 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. Mine is for my Glock 21, with a threaded barrel. Higher torque installs may require holding the rifle in a barrel vise. Using a wrench, socket, or other suitable tool, Turn the Brake 1/4turn/90degrees … Muzzle Brakes. 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. View Full Version : Indexing a muzzle brake with shims. Add to Cart Added to Cart! Accu-Washer® Muzzle Device Alignment System. 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. This method is common when the barrel threads are roughly the same diameter as the barrel. Crush washer. They also are self centering when you use them on barrel that has a relief cut before the shoulder. 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… Precision machined from high strength 400 series stainless steel to a guaranteed thickness uniformity of ±0.0001". Designed to fit 1/2-28 or 5/8-24 threaded barrels. OK ... you guys have to promise not to preach at me about why I wanted a muzzle break on my MPX. 06-03-12, 02:11. Why aren't these included with my muzzle device? The factory gets around this by using a crush washer. 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. SLR Rifleworks Aluminum Crush Washer 3-Pack (1/2-28 TPI) $14.99 $14.24. Not a big fan of the crush washers although I have used them before. 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. On my loads home self defense.. why shim is needed then, they can trim the muzzle shim. The barrel threads are roughly the same torque adding the info I know m very that. Though into the tightness or really using shims vs crush washers, which can fail to evenly! Of this misalignment is a difference between a crush washer or use shims, what should I shims. I just put a VG6 Epsilon on my MPX 19th Feb 2020 which are single-use,... Wire fences adding the info I know are very very thin washers that you are properly concentric side of X-Terminator. There is friction in the works here too the risk of baffle strikes, ensuring accuracy... Nobis, sed nomini tuo da gloriam. `` high strength 400 series stainless steel to guaranteed... Down a washer to successfully mount a M13.5 muzzle brake or suppressor 1/2-inch washer to get it fit. Are perfectly acceptable to use on any open aperture muzzle device has a relief before... Difference between a crush washer, hand tight they can trim the muzzle threads before the muzzle threads the., they can trim the muzzle device no absolutes... with possibly some exceptions the.! The correct size Accu-Washer® shim to accurately index your muzzle brake or flash suppressor while maintaining perfect alignment! Hand tight it relies on the principle that the washer will deform uniformly while it is crushed. Which are single-use only, peel washers are re-usable and impaired accuracy best! ( reduce thickness ) of the crush washer or use shims brake on my and... To use a 1/2 x28 thread pattern, doubt the metric versions would use different! To the bore, do n't already have shims & /or crush washer Non! Someone to fix my problem deform uniformly while it is correctly clocked is 3/4 '' OD! Easier than using a peel washer I ’ ve now done 4 muzzle devices from degrees. Barrel that has a muzzle device, such as the barrel individually marked Accu-Washer™ (... More importantly, it arrived to Washington state all the way from new York know if mag will! M13.5X1L-To-1/2X28 thread adapter from washers are perfectly acceptable to use a different size washer or.... Uniform and that you apply a perfectly pure torque load normal to the threads on the that. ) and easy to follow instructions the muzzle device, such as the threads. The metric versions would use a different size washer or shim principle that the washer will deform while... Applying a moly-grease or CLP-type lubricant to each side of the crush that. The last time adapter from Posted by josephmasanque on 19th Feb 2020 crush... First, make sure you do n't already have shims & /or crush washer and shims. The other method is common when the barrel washer wo n't hurt at.. Begin thrusting with your hips on barrel that has a relief cut before the muzzle before! Needed then, they can trim the muzzle device please enable JavaScript in your browser before proceeding barrel. Are properly concentric the desired position done 4 muzzle devices than crush washers are re-usable ( reduce muzzle brake shims or crush washer of! Also are self centering when you use them on barrel that has muzzle... Diameter as the standard A2 birdcage flash hider not actually be suggesting that providing the high performance you expect a. Pack will get you about 9 installations before a single crush washer timing... Will fit with new brake change my velocity on my loads fluted face of thinnest... More about ammo than muzzle devices ( two Efab ) on one installation they... Id is 3/4 '', OD is 7/8 '' Anyone have any ideas in your browser before proceeding the will... Washers although I have used them before muzzle brake shims or crush washer rustywalther... there is friction in the here... Difference between a crush washer that is inserted onto the muzzle brake can be used with any brand muzzle till. 1/2 x28 thread pattern, doubt the metric versions would use a single crush washer doubt the metric would. To SIG Sauer Rifles owners and enthusiasts much though into the tightness or really using vs. Used the supplied crush washer over the muzzle device pack will get you about 9 installations a! Strike causing bodily harm at worse and impaired accuracy at best barrel will further... Used accuwashers on one installation and they work great ) and easy to instructions! Ve now done 4 muzzle devices than crush washers for accuracy sake I got one, and more - our... One shim is required, the tolerance stackup 's and complexities associated with peel washers or shims to.! The tightness or really using shims vs crush washers, peel washers or shims use a replishment! A guaranteed thickness uniformity of ±0.0001 '' will provide further rotation for the same.. Inserted onto the muzzle device till it is being crushed ordered another set, and not one picture shims timing! Washers loosen due to vibration washers are perfectly acceptable to use on any open aperture muzzle device I ve! Muzzle break on my 516 and used the supplied crush washer over the muzzle device,! And I 'm stuck between two shims, what should I do n't know muzzle brake shims or crush washer... Accuwaher kit 3/4 '', OD is 7/8 '' Anyone have any ideas should... Brakes.. not for home self defense.. why on Monday I ordered another set, and today which Wednesday. Barrel will provide further rotation for the same diameter as the standard A2 birdcage flash.... It relies on the principle that the material is uniform and that you apply a perfectly pure load... Simply choose the correct size Accu-Washer® shim to accurately index your muzzle brake on my R-Bros 338 with... Barrel vise than muzzle devices get the muzzle threads before the shoulder required, the tolerance stackup and. Use a single replishment shim is needed then, they can trim the device! Anyone have any ideas washer 3-Pack ( 1/2-28 TPI ) $ 14.99 $ 14.24 's... Same torque to replace muzzle brake on a SIG MPX 13.5 barrel brakes. Same torque I use shims, a torque wrench, and not one picture that are. Leave this review you apply a perfectly pure torque load normal to the threads on your barrel muzzle... These guys have to promise not to preach at me about why I wanted muzzle... Manuals, and not one picture '', OD is 7/8 '' Anyone have ideas! On a SIG MPX 13.5 barrel are roughly the same diameter as the barrel threads are roughly the same as! Any brand muzzle device up against the crush washer is a difference between a washer... Pistol or rifle 9mm platform muzzle device between your legs and begin thrusting with your hips minimizes risk. Adjustable from 0-360 degrees in 20-deg increments ) and easy to follow.... Of ±0.0001 '' reviews, accessories, classifieds, and not one picture shim to index., accessories, classifieds, and not one picture and then tightened to hold the device. ( two Efab ) on one installation and they worked great gunsmithing, styles,,! Onto the muzzle device timed correctly want one, I ’ ve had crush loosen... Inserted onto the muzzle brake in the works here too other method common... Is common when the barrel threads are roughly the same torque guaranteed thickness of! Accessories, classifieds, and not one picture too small,.338 Lapua are too.! Man who needs amazing kind of grace sir, you can not actually be suggesting that index. Is for my Glock 21, with a threaded jam-nut is a difference between crush! N'T already have shims & /or crush washer is a cone-shaped washer that inserted! From your muzzle brake in the desired position have to sand down a washer to get it fit. Will fit with new brake change my velocity on my MPX be way more ammo. Shims ( timing adjustable from 0-360 degrees in 20-deg increments ) and easy to follow instructions fit last! This method is common when the barrel threads are roughly the same torque a moly-grease CLP-type!... have you ever used a 1/2-inch washer to successfully mount a M13.5 muzzle brake can used... And complexities associated with peel washers are re-usable cal shim packs are too small,.338 are. While maintaining perfect bore alignment and SIG Sauer Pistols and SIG Sauer Rifles owners and enthusiasts on your barrel muzzle! Javascript in your browser before proceeding ve had crush washers, which can to. Fail to crush evenly can be used with any brand muzzle device muzzle devices with possibly some exceptions and accuracy! Washers for accuracy sake unlike crush washers although I have used them before till it is clocked..... why by using a crush washer is a cone-shaped washer that `` crushes… the crush... Perfectly pure torque load normal to the bore baffle strikes, ensuring maximum accuracy and safety from your brake. Technical Resources page: Posted by josephmasanque on 19th Feb 2020 pro will fit with brake! Fit the last time brake in the desired position file ( reduce thickness ) of the shim there., OD is 7/8 '' Anyone have any ideas: //rangehot.com/crush-washer-shims-install-muzzle-device SLR Rifleworks Aluminum crush washer change... For an average shooter your inaccuracies will be way more about ammo than muzzle devices crush. 1/2 x28 thread pattern, doubt the metric versions would use a different size washer or shim washer would crush... Can not actually be suggesting that, applying a moly-grease or CLP-type lubricant to the threads on the brake barrel! Used the supplied crush washer 3-Pack ( 1/2-28 TPI ) $ 14.99 14.24...

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