Angstadt Arms Flash Hider - .578x28 threads | Fits .45ACP

45ACP AR-15 .578×28 flash hider Technical Specifications Made from 4041 hardened steel with a black nitride finish Does not require the use of a crush washer. A crush washer can be used if specific timing is desired .578×28 TPI 1.75″ long 1.76 oz