The Jam Nut has a name that inspires stupid jokes, but it seems to be a well thought out AR-15 accessory. JP Enterprises Double Crush Washer (1/2-28 TPI), JP Enterprises Recoil Eliminator Muzzle Brake (5.56/.223), JP Enterprises Recoil Eliminator Muzzle Brake (.308/7.62), Any barrel with 0.750" outer diameter with 1/2"-28 TPI (Threads Per Inch). While holding the jam nut still so that it will not rotate, tighten the standard heavy hex bolt to its full torque. AR-15 AK-47 Handgun Precision Rifles Armory Training Competitive Shooting General Outdoors Archery Hometown Industry About AR15.COM AR15.COM is the world’s largest firearm community and is a gathering place for firearm enthusiasts of all types. The tactical weapons community loves muzzle brakes. Either way, you get a quality muzzle jam nut that gives you an easy to time, solid mounting option for your threaded muzzle device. High quality hex jam nuts for indexing muzzle devices. After viewing product detail pages, look here to find an easy way to navigate back to pages you are interested in. Description This Jam Nut is used in place of a crush washer or shim kit to properly align a muzzle brake. Crush Washers, Peel washers, and shims are all used to time and solidly mount muzzle devices to varying degrees of success. A jam nut is a low profile type of nut, typically half as tall as a standard nut. After getting this it now sits perfect on my AR without any hassle of timing, Copyight 2020 Wing Tactical. Use the Tacfire Rifle Muzzle Brake Jam Nut to assist your next muzzle device change. AR15 Multi-Functional Spanner Wrench. All Prices Are In USD. Please try again. Brake installation using a jam nut for muzzle brake is an easy operation. J P ENTERPRISES - AR-15.750 JAM NUT 1/2-28" Made in the U.S.A. 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The locking effect of the two parts against each other will secure the brake in place. The problem with muzzle brakes is that most of them require correct timing to function properly and that part of the relationship can be a little strained. WARNING: California`s Proposition 65 Also called jam nuts, they are roughly half the height of standard hex nuts, so they’re good for applications with low clearance. Stock castle nut spanner wrench. Royal Purple 05000 Maxfilm High Performance Multipurpose Synthetic Penetrating Spray Lubricant - 11 oz. Choose your AR15 jam nut in clean stainless steel or with a magnesium phosphate finish. It can be threaded onto the barrel before the muzzle device and then backed out to tighten against the back side of the brake. On the other hand, I hope that reviews about it J P Enterprises Ar 15 750 Jam Nut 1 2 28 Ar 15 750 Jam Nut 1 2 28 Steel Black will be useful. Use to secure and time your device to barrel. Some of them can be downright maddening when you need to remove a muzzle device. They are widely used in construction and to create a bolted joint. Whether you prefer Mil-spec black or bright stainless components, JP Enterprises offers a 1/2-28 nut to work with your build. .308 / 7.62 5/8 x 24 thread Hex Jam nut steel $ 9.49 Add to cart.308 / 7.62 5/8 x 24 thread Jam nut ss steel $ 10.99 Add to cart.308 / 7.62 5/8 x 24 thread Jam nut steel $ 9.49 Add to cart; 37/64″ x 28, .578 x 28 thread Hex Barrel Jam nut #4119 $ 10.49 Add to cart; 9/16″ x 24 thread Hex Barrel Jam nut #4118 $ 10.49 Add to cart | 2585, 50 Pieces Aluminum Engine Oil Crush Washers Drain Plug Gaskets Compatible with Part 94109-14000 Fits Civic, Accord, CR-V/CRV, Pilot, and More. 49/64-20 Threaded Jam Nut 49/64-20 Threaded Jam Nut Product Specs: 49/64-20 Threads 3MM Thick Threaded to help align muzzlebrakes Made of steel The jam nut has both the slots and the holes on it. About AR15.COM. Ship same day if orderplaced before 1 PM EST, 30-day hassle free returnNO restocking fee. The JR Enterprises 1/2-28 Muzzle Jam Nut takes the hassle out of muzzle device installation and allows you to remove them with less hassle than other mounting methods. Get your Tacfire AR Muzzle Brake Jam Nut to make modifying your weapon a much simpler process. Constructed of high strength heat treated steel. ... AR-15 AK-47 Handgun Precision Rifles Armory Training Competitive Shooting General Outdoors Archery Hometown Industry. Rubberized grip. 5/16 in.-18 Zinc Plated Jam Nut (8-Pack) Jam nuts are slimmer versions of hex nuts. DB TAC 1/2''x28 Thread 1/2-28 Thread Jam Nut Locking and Position Adjustement, Black Steel, 5PC P… Additional charges for Non Free Shipping products, products shipping to remote locations, HazMat products, and large or heavy items still apply. It is commonly used as a type of locknut, where it is "jammed" up against a standard nut to lock the two in place. Choose from our selection of jam nuts, including medium-strength steel thin hex nuts, 18-8 stainless steel thin hex nuts, and more. Oops, something went wrong. Use with a screw or hex bolt to create a strong connection. It threads onto your 1/2×28 threaded barrel first. 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JP Enterprises offers a solution to all the hassle that those devices cause, the jam nut for muzzle brake. I had 2 crush washers before and everytime I over crushed and the muzzle device wasn't sitting how it should. Brake installation using a jam nut for muzzle brake is an easy operation. The locking effect of the two parts against each other will secure the brake in place. Top subscription boxes – right to your door, © 1996-2021, Amazon.com, Inc. or its affiliates. Besides the specific MI tool, does anyone know of another tool that will work on the jam nut? Available with coarse or fine threads. Jam nuts are slimmer versions of hex nuts. Then you thread on whatever muzzle device you may be using. Thread the jam nut on your barrel first, then your muzzle brake. It is also used in situations where a standard nut would not fit. When the brake is installed at the proper timing, the jam nut should be tightened against it. All Rights Reserved. Free float handguard jam nut wrench (locking ring). The idea behind this little device is that you can replace every crush washer you may one day need with the Jam Nut. SHIPS FREE with $49 Orders must have $49 of Free Shipping products to qualify for shipping discount. What will happen is this - when the thick nut comes in contact with the jam nut and begins to tighten, the pressure on the jam nut will be relieved. The best part is if you change your mind, or your timing is a little bit off, you can loosen the jam nut and brake and 1/2-28 nut remove or start over and get it right without requiring an act of congress or another wait for the mailman. This jam nut is designed to aid in tightening against flash hider/muzzle brake. When the brake is installed at the proper timing, the jam nut should be tightened against it. In stock and ready to ship. Description This Jam Nut is used in place of a crush washer or shim kit to properly align a muzzle brake. It can be threaded onto the barrel before the muzzle device and then backed out to tighten against the back side of the brake. Available in black or stainless steel for ½-28 threads. Made with fine-pitch threads, vibration is less likely to loosen these metric nuts than those with coarse-pitch threads since the threads sit closer together. Sitemap. Thread the jam nut on your barrel first, then your muzzle brake. 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