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

** These bolt carrier groups will have cosmetic blemishes that do not affect function. This may include, but is not limited to, scratches or slight variation in the finish color coat.

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.


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