Smith Defense AR-15 Mil-Spec Lower Parts Kit

AR-15 Mil-Spec Lower Parts Kit

AR-15 Mil-Spec lower receiver parts kit comes complete with an A2-style pistol grip and Mil-Spec trigger guard kit.  Our kit meets the highest quality standards in the industry and is made in America. Featuring ground and polished surfaces, it comes with everything you need to start your custom build, from start to finish. Whether you're upgrading your AR-15, or completing a stripped lower, our kit offers everything you need in one affordable package.

Complete Your AR-15 Build Quickly

Our AR-15 lower parts kit includes all Mil-Spec quality parts and components to complete your 80% lower receiver. Give your next AR-15 rifle build a foundation of proven excellence for long-lasting performance and reliability with our complete lower parts kit. 

Our AR-15 Mil-Spec lower receiver parts kit includes: 

• Mil-Spec fire control group with polished and ground sear surfaces
• Mil-Spec pin kit
• Mil-Spec A2 lower build kit styled pistol grip
• Mil-Spec bolt catch
• Mil-Spec trigger guard
• Mil-Spec magazine catch
• Mil-Spec buffer retainer kit
• Mil-Spec selector kit

Get all the parts you need for superior lower receiver finishing. If you’re looking to build an AR-15 that delivers the ultimate superior shooting experience for a hunting, target-shooting or self defense rifle, look no further but the AR-15 lower parts kit.  
Order Online Today As an industry-leading supplier of quality AR-15 build parts, you can count on us to deliver the best quality custom build parts and kits at the most competitive prices in the market. Our AR-15 Mil-Spec lower receiver parts kit combines true reliability, world-class quality and durability. If you want to finish your AR-15 lower receiver easily and quickly, feel free to order our AR-15 lower parts kit online.