- Manufacturer:New Frontier Armory
- Model:Crush Washer
- Size: .578" ID (SOME .40 / .45 cal)

This crush washer will ONLY fit .578" threads. New Frontier Armory .40 and .45 BBLS are 5/8" threads and do NOT use this crush washer. Some manufacturers use this washer for .40, .45, and 10mm. Be sure to verify your thread OD and the crush washer ID before purchasing.
The New Frontier Armory Crush Washeris proudly MADE IN THE USA by hard working American men and women.
Weight: | 0.02 LBS |
Dimensions: | 2.00 x 1.00 x 1.00 in |
Size: | N/A |
Color: | N/A |
3 Reviews Hide Reviews Show Reviews
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.578 crush washer
Very pleased,, quality product
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. 578 crush washer
Bought for a 10 mm carbine. Worked as it should. If you need one this size, this is a good one.
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45 acp crush washer fills gap
The 45 acp crush washer mated with the barrel diameter and filled the gap left when the barrel shroud was seated fully on the low shoulder left where threads on the muzzle came to an end. The washer outter diameter is 0.735”. It was used for cosmetic purposes. The shroud was subsequently pinned and welded.