Expo Arms 5.56 Crush Washer - 1/2x28 - 5 Pack

Manufactured by Expo Arms
Manufactured by Expo Arms
3 Reviews

In Stock

NOTE: Limit 3 per household. Quantities exceeding 3 will not allow checkout.

We are fully staffed and processing orders. Standard orders are shipping in approximately 1 business days or less. FFL orders take approximately 10 business days or less if you can provide us an actively receiving FFL location. Due to high demand, there is a limit of 5 FFL items in a 30 day period.



The Expo Arms 5.56 Crush Washer is a MIL-SPEC component for the installation of muzzle devices for barrels with 1/2x28 or 1/2x36 threading.

NOTE: For proper installation, place narrow end toward the receiver.

  • 5-pack
  • 1/2" crush washer
  • Steel construction
  • For barrels threaded 1/2x28 or 1/2x36
  • Proudly made in the U.S.A.
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BrandExpo Arms

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see www.p65warnings.ca.gov

Ratings & Reviews

3 reviews

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Great washers

by -

Washer worked great at a good price and fast shipping. Still leaves me with four more to use. Happy with purchase. I used this with my KAK flash can slim micro and it worked great to time it the way I wanted.

Great quality

by -

crush washers Work perfectly fit and finish are very clean. Nice packaging and I Highly recommend.

Work Perfectly

by -

I use these on all my AR builds and find them to work perfectly with no issues. Primary Arms always has what I need at great prices and shipping is always fast.