Bootleg .308 Phosphate Complete Bolt Assembly Cam - Precision Engineered for AR-10 Rifles

The Bootleg .308 Phosphate Complete Bolt Assembly Cam is a precision-engineered component set built to keep your AR-10 running reliably through thousands of rounds. Whether you're building from the ground up or upgrading an existing carrier, this kit gives you a complete bolt assembly with the critical firing control components you need—all made from materials chosen for durability under the stresses of full-power rifle cartridges.

Built with serious shooters in mind, each component in this kit is manufactured to specification and material standards that matter. The bolt itself is forged from 9310 steel and phosphate-coated to resist corrosion and wear. The cam pin is forged from 4340 steel, a material trusted across the industry for its toughness and resistance to the cycling stresses that can wear out lesser carriers. The firing pin is 4140 steel—reliable, consistent, and proven. Even the small detail matters: the firing pin retaining pin is 1038 steel wire, sized and tempered for strength where it counts.

This is the kind of kit that lets you build or rebuild with confidence. You get a complete assembly that's designed to work with AR-10 platforms and handle the demands of precision rifle shooting, whether that's long-range hunting, competition, or training. No surprises, no compatibility guessing—just solid engineering and materials that deliver.

Key Features

• Complete bolt assembly for AR-10 rifles—everything needed to finish a carrier
• Bolt: 9310 steel with phosphate coating for corrosion and wear resistance
• Cam pin: forged 4340 steel for toughness and longevity under cycling stress
• Firing pin: 4140 steel for consistent, reliable ignition
• Firing pin retaining pin: 1038 steel wire for strength and durability

Specifications

Frequently Asked Questions

Will this bolt assembly fit my AR-10 carrier?

Yes, this is designed as a complete bolt assembly kit for AR-10 platforms. It includes all the components needed to complete a .308 carrier.

What's included in this kit?

The kit includes the bolt (9310 steel, phosphate-coated), cam pin (4340 steel), firing pin (4140 steel), and firing pin retaining pin (1038 steel wire)—everything required for a complete bolt assembly.

Why does the phosphate coating matter?

Phosphate coating on the bolt provides corrosion resistance and durability, protecting against rust and wear from repeated firing and exposure to the elements.

Is this suitable for long-range or competition shooting?

Yes. The material choices—9310 steel bolt, 4340 forged cam pin, and 4140 firing pin—are engineered for reliability and durability under the demands of precision rifle shooting and extended use.