Product Description The Sons of Liberty Gun Works (SOLGW) Blaster Guts Lower Parts Kit is a complete AR-15 lower parts kit built from only the highest quality Mil-Spec or better components. Designed for builders who demand reliability and performance, this kit features the Liberty Fighting Trigger for a consistent and crisp pull, along with a full suite of precision-machined hardware to complete your AR-15 lower receiver. The SOLGW Bolt Catch and Safety Selector are Mil-Spec AISI8620 investment castings manufactured per the USGI Technical Data Package (TDP). Takedown and pivot pin detents are solid hardened stainless steel sourced from KNS Precision Machine. The magazine catch button is made from steel rather than the aluminum found in the majority of commercially available lower parts kits, delivering greater overall rigidity. The Liberty Fighting Trigger creates the perfect balance between proven mil-spec components and a smooth, grit-free pull and break, with an average pull weight of approximately 6 lbs. The hammer and trigger are treated with durable, corrosion-resistant Nickel PTFE to reduce friction and maintain lubricity. The entire kit is backed by a Lifetime Guarantee. Product Highlights Liberty Fighting Trigger engineered for a consistent, crisp, grit-free pull averaging 6 lbs without compromising proper function Mil-Spec AISI8620 investment cast bolt catch and safety selector manufactured to USGI Technical Data Package standards Solid hardened stainless steel takedown and pivot pin detents from KNS Precision Machine for superior durability Steel magazine catch button instead of aluminum for added strength over the majority of commercially available lower parts kits Hammer and trigger treated with Nickel PTFE coating for corrosion resistance and reduced friction, backed by a Lifetime Guarantee Specs Brand: Sons of Liberty Gun Works MPN: BG-LT UPC: 785939519419 Product Type: AR-15 Lower Parts Kit Material: Mil-Spec AISI8620 Steel, Hardened Stainless Steel Trigger Pull Weight: Approximately 6 lbs Trigger/Hammer Coating: Nickel PTFE Color: Black / Silver Includes: Takedown Pins, Pivot Pins, Pivot Pin Detents and Springs, Bolt Catch Assembly (Bolt Catch, Buffer, Pin, Spring), Buffer Retainer Pin and Spring, Disconnector and Spring, Liberty Fighting Trigger and Springs, Magazine Catch Assembly (Catch, Button, Spring), Pistol Grip Lock Washer and Screw, Selector Assembly (Selector, Detent, Spring) Does Not Include: Pistol Grip, Trigger Guard Compatible With: Standard AR-15 Lower Receivers Warranty: Lifetime Guarantee Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.