AR-15 1/2 Inch Crush Washer
The United Defense AR-15 1/2 Inch Crush Washer is the hardware you need to properly install a flash hider, muzzle brake, compensator, or suppressor mount on a standard 1/2x28 threaded AR-15 barrel. Slide it onto the threads tapered side first, then torque your muzzle device down against it to crush the washer and lock the device in correct alignment. Machined from steel for consistent compression and reliable indexing, it gives you over a full turn of adjustment to time ports exactly where they belong. A required component for any AR-15 build, rebuild, or muzzle device swap chambered in 5.56 NATO or .223 Remington.
In stock
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- SKU
- UD-GP-AR15-12CW
$1.99
Description
Features
- 1/2x28 Thread Compatibility — Fits standard AR-15 barrels chambered in 5.56 NATO and .223 Remington with the industry-standard 1/2x28 muzzle thread.
- Proper Muzzle Device Timing — Allows you to correctly index flash hiders, muzzle brakes, and compensators so ports align where they need to be.
- Steel Construction — Machined from steel to crush uniformly under torque while holding the muzzle device firmly in place.
- Tapered Profile — Tapered side installs toward the shoulder of the barrel; crowned side seats against the muzzle device for clean compression.
- Full Turn of Adjustment — Provides over a full rotation of indexing range to dial in exact alignment without over-torquing.
- Single-Use Design — Replace with a fresh washer any time you remove your muzzle device to ensure a secure, properly timed reinstall.
- AR-15 Platform Specific — Sized for the standard 1/2-inch muzzle threading found on the vast majority of AR-15 barrels.
- Essential Build Component — A must-have piece of hardware for any AR-15 barrel assembly, upper build, or muzzle device swap.
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Customer Reviews
Top customer reviews
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Quick DeliveryDelighted with this company.
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Just as pictured.These AR15 crush washer are awesome. Would recommend.
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GoodBest price anywhere that was online. Delivery was quick with Fedex.
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Perfect for meI purchased two of these crush washers. Using one for repair, other is stored in my spares box.
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NiceReceived in three days after buying. Will be back to buy at Keepshooting again!
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