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Tools, nuts, and bolts required to mount an AR-15 80% lower and jig assembly. Contains: 3 M4x45 mm bolts, 2 M4x20 mm bolts, 1 M4x80 mm bolt, 3 M4 nuts, 7 M4 washers, 3 M4 T-slot nuts, a grip bolt (1/4in x 1in), one 2.5mm hex wrench, and a 3/16" hex wrench.

Standard AR-15 Jig Hardware Kit