Description

LBE Unlimited .308 Bolt Carrier Group – DPMS Style | 8620 Billet Carrier + 158 Carpenter Steel Bolt | Best-Selling Performance.

When it comes to building a .308/AR10 rifle you can trust, the heart of your rifle lies in the bolt carrier group (BCG). The LBE Unlimited .308 Bolt Carrier Group (DPMS Style) is engineered for reliability, precision, and durability, making it one of our best-selling components, trusted by gunsmiths, builders, and serious shooters across the country.

At the core of this BCG is a billet-machined carrier crafted from 8620 steel, a proven steel alloy known for its toughness and high wear resistance. After machining, the carrier is case hardened, providing a tough exterior shell that stands up to high-pressure cycling while maintaining internal toughness for long-term durability.

The bolt is made from 158 Carpenter steel, the gold standard for bolt construction in military-grade rifles. This steel is renowned for its strength, resistance to fracture, and fatigue endurance, ensuring your bolt performs under extreme pressure, high round counts, and demanding shooting conditions.

Every detail on this BCG is built to mil-spec standards, including a phosphate coating that offers excellent corrosion resistance and a non-reflective, matte-black finish. Inside, the gas key and firing pin channel are chrome lined—a feature that significantly reduces carbon buildup and friction, enhancing longevity and smooth function even in high-volume shooting.

The gas key is properly staked, ensuring it stays firmly in place under repeated recoil and gas pressure. This detail—often overlooked in lower-tier BCGs—is critical for reliability, especially in a duty or competition setup. Forward assist serrations are also machined into the carrier, making it compatible with receivers featuring forward assist functionality.

This BCG is designed for DPMS-style .308/AR10 platforms and offers drop-in compatibility with most standard AR10 uppers. Whether you’re building a long-range precision rifle, a battle-ready semi-auto, or a rugged hunting platform, this bolt carrier group is built to perform and built to last.

Product Features:

Designed for DPMS-style .308/AR10 rifles
Billet carrier machined from 8620 steel and case hardened for durability
Bolt made from 158 Carpenter steel—strong, reliable, and mil-spec
Mil-spec phosphate coating for corrosion and wear resistance
Chrome-lined gas key and firing pin channel for smooth, clean operation
Properly staked gas key for lasting reliability
Forward assist serrations for full compatibility
Drop-in ready for most DPMS-pattern rifles
Proudly MADE IN THE USA

With unbeatable performance and trusted dependability, it’s no surprise this is one of our top sellers. The LBE Unlimited .308 BCG is the perfect combination of top-tier materials, precision engineering, and American craftsmanship, because your rifle deserves the best at its core.