Rock River Arms 9mm Compensator

Rock River Arms 9mm Compensator


SKU: 720 Category:


The RRA 9mm Compensator is just what you need to complete your detachable magazine OLL build. Combine this with a MonsterMan Grip, 9mm stock spacer, and an A2 fixed stock and you can actually use detachable magazines! 1/2″x36 thread. This brake does not come with a crush washer. Be sure to order one if you don’t have one in order to attain proper indexing.


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