WMD Bolt and Carrier Group Hammer Nib-X Fits AR-15

Complete NiBx coated bolt carrier group, and Nibx coated hammer. Bolt – Carpenter 158 case hardened, shot peened and magnetic particle inspected. Manufactured to Government drawings. Mil Spec gas rings. NiB-X coated 40% more wear resistant than Chrome. Extractor – Manufactured, heat treated, hardened, per Government drawings. Black extractor buffer and heavy duty spring. NiB-X coated. Firing Pin – Manufactured, heat treated, hardened, Chromed and certified per Government drawings. Carrier – M16 style carrier heavy weight, 8620 material, heat treated and case hardened. Manufacturing tolerances on inside diameters tightly controlled. NiB-X coated for durability and ease of cleaning. Gas Key – Hardened to USGI Specifications and attached using grade 8 hardened fasteners. Permatex No. 3D Aviation Form a gasket Type III Sealing Compound per MIL-S-45180 used on assembly. NiB-X coated. Staked per military specifications. Cam pin – Manufactured, heat treated, hardened and certified per Government drawings. NiB-X Coated. Hammer - Manufactured, heat treated, hardened and certified per Government drawings. NiB-X Coated.