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Sons of Liberty Gun Works Blaster Guts Complete Lower Parts Kit with Liberty Fighting Trigger - BG - UPC 691821607761
Product Description
The Sons of Liberty Gun Works Blaster Guts Lower Parts Kit (BG) provides a complete, duty-grade internal overhaul for any mil-spec AR-15 lower receiver. Engineered for hard-use firearms, SOLGW selects every pin, spring, and detent to strict mil-spec tolerances, ensuring smooth mechanical operation, positive controls, and long-term durability. Unlike commercial-grade lower kits that cut corners on small metal components, SOLGW utilizes robust, properly heat-treated steel parts designed to withstand high round counts and harsh environments.
At the center of this kit is the renowned SOLGW Liberty Fighting Trigger (LFT). The LFT delivers a crisp, duty-weight pull with a clean break and positive tactile reset, offering a significant upgrade over gritty standard GI triggers while maintaining absolute safety and drop reliability. The kit also comes complete with an ergonomic pistol grip, an enlarged polymer trigger guard for easy operation with gloved hands, and all required takedown pins, detents, springs, and fire control hardware.
Whether you are starting a custom lower build from scratch or replacing worn internal components on a primary defensive rifle, the Blaster Guts LPK delivers true peace of mind. Built in San Antonio, Texas, Sons of Liberty Gun Works backs their components with a lifetime guarantee, making this kit an exceptional value for armorer-grade assembly.
*Armorer Bench Notes & Real-World Staging Guidance:
Fitment Matrix: Compatible with all standard forged and billet mil-spec AR-15 lower receivers. Standard pin sizes (.154" trigger/hammer pins). Fits 5.56 NATO, .223 Rem, .300 Blackout, 6.5 Grendel, and 9mm AR-style receivers.
Staging & Installation Steps:
- Inspect the lower receiver pin channels and remove any burrs or excess finish buildup before installing small detents.
- Install the pivot pin, detent, and spring using a pivot pin tool to prevent launching the detent.
- Assemble the magazine catch, bolt catch (using a roll pin punch to prevent receiver marring), and enlarged trigger guard.
- Install the Liberty Fighting Trigger assembly, ensuring the hammer spring arms rest flat across the trigger pin.
- Install the safety selector, pistol grip, grip screw, and safety detent/spring, taking care not to kink the spring during grip seating.
Key Features
- Complete mil-spec lower receiver internal parts kit with fire control group and furniture.
- Includes the crisp, duty-grade Sons of Liberty Gun Works Liberty Fighting Trigger (LFT).
- Enlarged trigger guard provides extra clearance when shooting with heavy winter gloves.
- Includes ergonomic A2-style pistol grip, mounting screw, and star washer.
- High-grade heat-treated steel pins, springs, and detents engineered for harsh tactical use.
- Matte black protective finish for maximum corrosion and wear resistance.
Product Specifications
- Brand: Sons of Liberty Gun Works (SOLGW)
- Model: Blaster Guts Lower Parts Kit (BG)
- MPN: BG
- UPC: 691821607761
- Platform: AR-15 / M4 Mil-Spec
- Trigger Style: Single-Stage Liberty Fighting Trigger (.154" Pins)
- Finish: Matte Black
- Included Components: Fire Control Group, Grip, Trigger Guard, Takedown/Pivot Pins, Buffer Retainer, Catch Assembly, Safety Selector, Springs, and Detents
- Origin: Made in USA
