Ar-15/M16 Gas Block Taper Pin Reamer - Taper Pin Reamer

High-speed steel reamer is precisely tapered to match the shape of the standard A2 gas block retaining pin. Cleans up existing holes or tapers newly drilled holes to ensure a positive, secure fit and precise alignment of the sight tower. Mfg: Brownells SPECS: Reamer - High-speed steel, 2/0 reamer. Tapers from .1137" (2.8mm) O.D. at the tip to .1462" (3.7mm) O.D. near the shank. Handle - 2A 3/4" (70mm) long, 5/8" (16mm) diameter.