Description
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 Washer is proudly MADE IN THE USA by hard working American men and women.
