The DUAL-LOK mounting system provides high performance attachment, greater user confidence, and a more modern feature set. Incorporating it into the over the barrel DUAL-LOK PSR series allows for a rigid locking system in an extremely accurate taper interface mount. Rough handling of the firearms muzzle device is not an issue with the PSR cans as there is a redundant support structure that forces alignment to be as exceptional as a brand new mounting interface regardless of dings and handling abuse common to the sniper field environment. The suppressors feature the patent pending pressure reduction front cap with integrated flash suppressor for extremely low flash. Blow back is lesser than previous Griffin RSTA and SPR suppressors in part due to the ECO-FLOW baffles as well as the patent pending end cap, and other internal geometric nuances. These suppressors are ear safe on gas operated firearms making them a perfect fit for bolt actions or semi-automatic