LBE Unlimited .308 Bolt Carrier Group (BCG) — Black Finish — Fits DPMS-Style .308 Uppers (Model: AR10BCG, UPC: 784682014530)
Upgrade your AR-10/.308 platform with a reliable, precision-made bolt carrier group designed for DPMS-style uppers. The LBE Unlimited AR10BCG delivers dependable function, durable finish, and straightforward drop-in compatibility for builders, armorers, and shooters who demand consistent extraction, ejection, and long-term service from their .308 systems.
Product Overview
The LBE Unlimited .308 Bolt Carrier Group (AR10BCG) is a purpose-built assembly engineered to handle the pressures and timing of .308 Winchester / 7.62×51 NATO cartridges. Built to interface with DPMS-style AR-10 uppers, this BCG provides the core mechanical reliability your rifle needs for duty, competition, hunting, or heavy training. Finished in a durable black coating for corrosion resistance and low-glare appearance, it’s an accessible upgrade or replacement component for any .308 build.
Key Features & Benefits
Model: AR10BCG
UPC: 784682014530
Platform Compatibility: DPMS-style AR-10 / .308 uppers — drop-in fit for systems using DPMS-pattern bolt carriers.
Complete Assembly: Bolt, carrier, gas key (properly staked), cam pin, firing pin, and retaining pin assembled and ready for installation.
Durable Black Finish: Protective, low-reflective coating helps resist corrosion and wear during heavy use and field conditions.
Robust Performance: Designed to withstand the increased gas pressures and bolt thrust associated with .308/7.62×51 ammunition for reliable cycling and ejection.
Serviceability: Standard component interfaces and serviceable parts make field maintenance and replacement simple for armorers and end users.
Optimized for Reliability: Engineered geometry for consistent lockup, extraction, and ejection across a wide variety of ammunition types.
Why Choose This AR10BCG?
A quality bolt carrier group is essential to rifle reliability. The LBE Unlimited AR10BCG delivers:
Repeatable Function: Tight tolerances and quality assembly reduce the risk of malfunctions related to poor timing or inconsistent carrier travel.
Value & Durability: Professional-grade functionality without premium pricing — ideal for range rigs, patrol rifles, and custom builds.
Compatibility Focused: Built specifically for DPMS-style dimensions, eliminating fitment headaches common with mismatched BCG patterns.
Simple Swap-In: The assembled BCG is ready to install — no modifications required for DPMS-compatible uppers.
Technical & Compatibility Notes
Intended Use: Direct-impingement AR-10/.308 systems using DPMS-style bolt carriers. Confirm your upper/receiver spec before purchase.
Gas Key: Properly staked gas key to protect against loosening under repeated fire (confirm staking visually after receipt).
Materials & Heat Treatment: Manufactured from high-strength steels suitable for .308 service and treated to withstand cyclic stress (standard for quality BCGs).
Function Check: After installation, perform a function check and a short live-fire verification at the range to ensure proper gas system tuning and reliable cycling in your specific setup.
Not Universal: This BCG is intended for DPMS-pattern AR-10s; it is not guaranteed to fit non-DPMS or proprietary AR-10 platforms without verification.
Installation & Maintenance Tips
Installation: Clear firearm, follow manufacturer instructions for disassembly, insert the assembled BCG and charging handle, and reassemble per armorer guidance.
Break-In: A few cycles and a short live-fire session are recommended to confirm function and proper headspace/lockup behavior.
Cleaning: Regularly clean carbon build-up from the bolt and carrier gas rings, inspect the gas key staking, and lubricate per standard AR-10 maintenance procedures.
Replacement Parts: Cam pin, firing pin, and extractor are serviceable components — keep spares if you run high round counts or use hot ammunition frequently.
Ideal Applications
Patrol and duty rifles requiring consistent, durable performance
Competition shooters building a DPMS-pattern AR-10 for heavy use
Hunters using .308 platforms where reliability under varied conditions matters
DIY builders and armorers looking for a cost-effective, quality BCG for DPMS-style uppers
Final Thoughts
The LBE Unlimited .308 Bolt Carrier Group (AR10BCG) is a dependable, ready-to-install solution for DPMS-style AR-10 builds. With a sturdy black finish, complete assembly, and engineering tuned for .308 performance, it’s a practical upgrade for anyone seeking reliability and serviceability in their .308 platform. Pair it with a matched upper and proper gas system tuning for optimal long-term performance.
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