Standard screw

Rainier Arms was started by enthusiasts for enthusiasts. Specializing in high end AR15s/M16s, parts & accessories, their motto was: "If we won't use it, we won't sell it." Founded in 2005, Rainier Arms was established (and continues to this day) as a firearms and parts supplier. As time passed, ..

The Griffin Armament M4SD Linear Comp is the only muzzle device from Griffin Armament without any side ports, thus reducing side blast to other people beside the shooter's position. Instead it features three ports on top for muzzle neutrality as well as a de Laval nozzle in front to project linear f..

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