armorhillfirearmsllcA Griffin, (marked Property of Griffin armament firearms division) Select fire marked, MK1 M16 cut lower receiver, 16" heavyweight profile barrel chambered in 5.56. this is a Ruger complete upper with lo profile metal flip up sights. Fab defense butt stock over a 6 position buffer. MOE k2xl grips Please feel free to reach out with questions or offers! no trades
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