Toolcraft Barrels Gun Parts
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34 months ago
Details Mil-Spec Carpenter No. 158® Steel Bolt Shot Peened; Mag Particle Inspected  Chrome Lined Full-Auto Carrier Chrome Lined Gas Key; Hardened to USGI Specifications Secured with Grade 8 Hardened Fasteners  Staked Per Mil-Spec Features This Toolcraft Bolt is made of Mil-spec Carpenter 158 steel, shot peened, and mag particle inspected.  Gas key is chrome lined, phosphate coated, and secured with grade 8 fasteners and staked per mil-spec. Full-auto bolt carrier is phosphate coated and chrome lined.  Made in the USA. MPN#: 5655103990 Model Number 5165450548