Lower Receiver

The KAC Knight's Armament SR-15 Stripped Ambidextrous Lower Receiver — Factory Blem (KAC PN: 123689) is a genuine Knight's Armament SR-15 ambidextrous stripped lower receiver, offered as a factory blemished unit at a significant savings compared to the...

The Forward Controls Design Bolt Carrier Group — Serrated (SBCG-N-S) is FCD's Secure-Staking BCG with nitride finish and serrated texture on the bolt carrier body. The SBCG-N-S (Secure-Staking BCG, Nitride, Serrated) uses FCD's proprietary secure-staking...

The Forward Controls Design Bolt Carrier Group — Dimpled (SBCG-N-D) is FCD's Secure-Staking BCG with nitride finish and dimpled texture machined into the bolt carrier body. The SBCG-N-D (Secure-Staking BCG, Nitride, Dimpled) uses FCD's proprietary...

The Forward Controls Design ABC/R v3 Dimpled 5.56 Bolt Catch (ABC/R v3 AA) is the dimpled-texture (all-around/AA) variant of FCD's ABC/R v3 Augmented Bolt Catch for AR-15/M16 receivers. The all-around dimpled texture provides maximum tactile feedback...

Sons of Liberty Gun Works and Forward Controls Design have teamed up to bring you the Quick Ambi Safety, with a short 50 degrees throw, a long offset Q Lever, and a short standard lever. Ambidextrous Interchangeable Levers Offset Lever with Short...

The MOE Trigger Guard (Magpul Original Equipment) is an enhanced polymer drop in replacement for the AR15/M4 weapons platform. It features a shallow V shape for better use of gloves in tactical shooting or cold weather operations. The MOE Trigger Guard...

Enhanced with a 3.5lb Single Stage Flat Trigger, this kit is a great addition to your AR15 build. From amateur gun builder to seasoned expert gun smith, this lower parts kit is for you. NOTE: Grip NOT included. Kit Contains 3.5lb Single Stage Trigger 1...

Complete your build with only the best lower parts kit available. This is the same kit that LMT’s world famous weapons are built with so why wouldn’t you want it in your rifle? 100% American Made Includes: Trigger guard assembly Magazine...

LMT Defense Full-Auto Ambidextrous Selector.  This no frills, tough as nails, ambi safety is a perfect low cost upgrade to your LMT or any other AR-15/AR-10 weapon system. This is a steel, two piece design with equal length levers for quick and...

The LMT Defense Semi-Auto Ambidextrous Selector (LMP092CAA) provides true ambidextrous safety/selector operation for AR-15 builds. This drop-in ambidextrous safety selector features levers on both the left and right sides of the lower receiver, enabling...

By popular demand, we’ve established a lower parts kit less the trigger group.  While our two-stage trigger group is among the best on the market, we realize you may prefer drop-in trigger groups or various other brands out there.  This...

Complete kit contains every internal part needed to complete or rebuild an AR lower receiver. High-quality components are designed to work in coordination with each other to ensure smooth operation, and they come packaged in color-coded bags that...