Advanced Technology Intl AR-15 223/5.56 Steel Crush Washers – 5-Pack | High-Performance Black Finish

AR-15 crush washers are a small but essential component when you're assembling or maintaining your rifle's muzzle device setup. The Advanced Technology Intl AR-15 223/5.56 Steel Crush Washers come as a 5-pack, giving you spares for multiple builds or the chance to keep backups on hand. These steel crush washers fit standard 1/2"-28 threaded muzzle devices—the most common thread pitch for .223/5.56 AR platforms—and the black oxide finish resists corrosion so they'll hold up through range sessions and field use.

Crush washers work by deforming slightly under torque to create a positive headspace seal between your muzzle device and barrel. Unlike crush washers that degrade over time, having quality replacements means you can maintain proper fit and function every time you swap or service a muzzle brake, flash hider, or suppressor adapter. The black finish matches standard AR components and won't add visual bulk to your setup.

Whether you're a builder stocking your bench, a shooter who regularly changes muzzle devices, or someone who just wants spares in the toolbox, a 5-pack keeps you covered without breaking the bank. Steel construction ensures durability through repeated installation and removal cycles.

Key Features

• Fits 1/2"-28 threaded AR-15 muzzle devices (.223/5.56 platforms)
• Pack of 5 for multiple builds or spare inventory
• Steel construction with black oxide finish for corrosion resistance
• Creates positive headspace seal under torque

Specifications

Frequently Asked Questions

Will these crush washers fit my muzzle brake or flash hider?

Yes, if your muzzle device has 1/2"-28 threads (the standard for .223/5.56 AR platforms). Check your device's thread pitch before ordering; these are not compatible with larger or smaller thread sizes.

How many times can I reuse a crush washer?

Crush washers deform when torqued and typically should be replaced after each removal and reinstallation. That's why having a 5-pack on hand means you won't be caught without spares during builds or maintenance.

What's the difference between a crush washer and a regular washer?

A crush washer is designed to compress and create a positive headspace seal between the barrel and muzzle device. A flat washer does not provide the same indexed fit, which is why crush washers are preferred for precision AR builds.