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Is the muzzle device pinned and welded? — 1 Answer

by Brent, from PA, United States Asked on December 7, 2025

Name Griffin Armament MK1 Patrol 5.56mm 14.5 inch Upper (1)
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Answered by Griffin Armament, Manufacturer from WI, United States, on December 10, 2025

Yes, for the complete MK1 Patrol 14.5" Carbine (Pinned to 16"), the muzzle device is pinned and welded to ensure it meets the legal 16-inch federal minimum barrel length for a rifle.

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