100% MADE IN USA - JUST LIKE ALL BISON ARMORY PRODUCTS!
Bulk pack includes 40 shims: 20 thin and 20, equivalent to 5 individual sets
Bison Armory AR-15 Barrel Nut Shim Set
40 Pack consisting of 20x 0.001" thick shims and 20x 0.002" thick shims. That's enough to complete at least 20 upper assemblies with standard barrel nuts (Aero take more). These shims are for use in the installation of ALL AR-15 rifle barrels, including 223, 5.56, 6.8 and 300 BLK.
Achieve perfect barrel nut / gas tube allignment within the correct barrel nut torque specifications every time, guaranteed!
NOTE: Use of these shims will NOT affect bolt / barrel headspace.
Instructions are included with your order, and please watch our instructional video on You Tube below: