SAE. 9310 Mag Phosphate Bolt Assembly

$69.95

*Consult a gunsmith whenever assembling or disassembling a firearm

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Biz Enterprises Mag Phosphate plated complete bolt assembly.

AR-15 Mag Phosphate plated bolt .223

This Biz Enterprises LLC Bolt is 100% made in the USA from the finest domestic material available, SAE 9310. This Mag Phosphate casehardened steel has strength and toughness properties that far exceed the standard Mil Spec status. It shows high hardenability, high core hardness and high fatigue strength. Often used for gears, crankshafts and heavy-duty gear shafts in aircraft and truck construction. So you know it can take a beating while sending many more rounds down range than the standard typical Mil spec bolt.

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