Description
Sons of Liberty Gun Works Bolt Carrier Group (BCG) – Duty-Grade Reliability
The Sons of Liberty Gun Works (SOLGW) Bolt Carrier Group is a premium, mil-spec BCG built to withstand the harshest conditions and heaviest round counts. Made entirely in the USA with materials, processes, and testing standards that exceed typical mil-spec requirements, this is the BCG trusted by professionals, law enforcement, and discerning shooters alike.
Designed for extreme reliability and longevity, this is not just another “mil-spec” BCG—it’s duty-grade, through and through.
Key Features:
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Carrier: 8620 steel, heat treated and case hardened
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Bolt: 9310 steel, magnetic particle inspected (MPI), high-pressure tested (HPT), and shot-peened
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Gas Key: Properly staked and secured with Grade 8 fasteners
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Cam Pin, Firing Pin, and Retaining Pin: Hardened steel, machined to precise tolerances
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Coating: Phosphate finish with chrome-lined interior for corrosion resistance and smooth operation
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Full-Auto Rated: M16 profile carrier for enhanced durability and mass
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MPI & HPT Tested: Every bolt individually tested for integrity and performance
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Made in the USA
Why Choose the SOLGW BCG?
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No Corners Cut: Built with premium materials and tested well beyond industry standards
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True Duty Use: Designed to survive real-world use, not just range days
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Ready to Run: Drop-in ready and built to function in suppressed or unsuppressed setups
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Lifetime Warranty: Backed by SOLGW’s renowned warranty and commitment to quality
Compatible With:
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MIL-SPEC AR-15 / M4 / M16 upper receivers
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5.56 NATO, .223 Rem, .300 BLK, and other standard AR-15 calibers
Whether you’re building a hard-use rifle or upgrading your current setup, the SOLGW Bolt Carrier Group offers unmatched durability, reliability, and peace of mind. This is the heart of your rifle—don’t cut corners.





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