Primary Arms© Primary Arms
80Deal ScoreNo Stock

Faxon Firearms .458 Socom / .450 Bushmaster Bolt - Nitride

$80.00
Brand
Faxon Firearms
Category
Gun Parts
Platform
AR-15
Gun Part Type
Bolt/BCG
UPC
816341024175

Overview

The Faxon Firearms 9310 .458 SOCOM / .450 Bushmaster Bolt is a precision-engineered AR-15 replacement bolt designed for reliable big-bore cycling and extended service life. Machined from robust 9310 tool steel, the bolt is fully heat-treated, shot-peened to military specifications, and Magnetic Particle Inspection (MPI) tested to ensure material integrity. It features a salt bath nitride finish that delivers superior surface hardness, reduced friction, and enhanced corrosion resistance compared to standard phosphated or chrome assemblies. Built with a .125-inch bolt face, the assembly includes chamfered 45-degree bolt lugs to support smooth feeding and dependable action under heavy big-bore pressures. The extractor is constructed from heat-treated and shot-peened S7 tool steel, complete with a spring, o-ring, and silicone insert. This is a bolt-only component compatible with AR-15 platform rifles chambered in .458 SOCOM and .450 Bushmaster.

Price & Stock History

Price — 90d
Listings In Stock — 30d

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