SKU: SOLGWM4LOWERLFTA5BRAVO
UPC: 691821594207
MPN: M4LOWERLFTA5BRAVO
The Sons of Liberty Gun Works M4 Lower Left-Hand A5 Bravo is a complete, mil-spec compliant lower receiver assembly designed for operators and builders who demand quality that performs under sustained operational use. Built on the principle that firearms should be assembled correctly the first time and ready for immediate deployment, this left-hand lower integrates field-proven components from respected manufacturers to deliver a cohesive platform requiring no additional work before duty or training.
The assembly features a 9-position A5 receiver extension paired with an A5H2 buffer and Sprinco Green spring, a combination that optimizes bolt carrier group dwell time across standard and suppressed firing. The quick-detach endplate uses a staked Forward Controls Design castle nut—critical for reliability during high-round-count training or tactical employment. The LFT trigger, mil-spec safety selector, and B5 Grip provide consistent manual-of-arms ergonomics. Weight is distributed across 3 lbs, suitable for integration into a full M4 or rifle platform without adding unnecessary mass to the shooter's system.
This left-hand lower addresses a critical gap in the market: quality complete assemblies for southpaw shooters and ambidextrous-capable builds. Law enforcement units, military personnel transitioning equipment to non-dominant-side shooters, and competitive shooters requiring left-hand ergonomics will find this assembly eliminates the need to source and verify individual components. The mil-spec or better specification standard ensures compatibility with standard upper receivers and aftermarket accessories engineered to true mil-spec tolerances.
Sons of Liberty Gun Works has established credibility in the AR platform community by refusing to compromise on material quality or assembly standards. This lower receiver is a proven choice for users who value operational reliability over cost-cutting and who understand that a properly built foundation determines the performance ceiling of the entire system.
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