The Yankee Hill Machine Phantom 5M1 was designed with Phantom styling in mind but works as a muzzle brake and compensator. This 5 port design has no downward facing port which helps eliminate dust problems when shooting in the prone position. The 5M1 maintains the aggressive front end for hand-to-hand situations, Threaded 1/2"-28. Includes crush washer.
Threads: 1/2" - 28
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