Lower Receiver

The Forward Controls Design MARS-H Pivot & Takedown Pins Set (PF-040 MARS-H) is FCD's precision enhanced pivot and takedown pin set specifically dimensioned for the LMT MARS-H (heavy/.308/AR-10) large-frame lower receivers. These pins are machined to...

The Forward Controls Design AR-15 Pivot & Takedown Pins Set (PF-040) is FCD's enhanced replacement pivot and takedown pin set for AR-15 lower receivers. FCD's PF-040 pins are machined to tighter tolerances than standard mil-spec pins, providing a...

The Forward Controls Design Augmented Bolt Catch — ABC/R V3 (ABC/R v3) is FCD's purpose-designed enhanced bolt catch and release for AR-15/M16 receivers equipped with ambidextrous magazine releases. The ABC/R (Augmented Bolt Catch/Release, Forward...

The Forward Controls Design Secure Staking Bolt Carrier Group (SBCG) is FCD's premium enhanced bolt carrier group for AR-15/M16 5.56 NATO platforms. The SBCG (Secure-staking BCG, Forward Controls) addresses a common reliability concern with standard...

The B5 Systems 6061 Aluminum AR Milspec Trigger Guard in Black (ATG-1092) is a precision-machined, drop-in replacement trigger guard for AR-15 rifles that eliminates the standard polymer trigger guard for improved hand protection and a more solid feel...

The Radian EBC is an enhanced bolt catch to increase the user's access to the bolt lock and release function. Features enlarged paddles and non-slip grooves for ease of manipulation.

  All the parts you need to get started on your next AR15 build. Combine this kit with a buttstock kit to complete your lower group. All parts meet or exceed mil-spec Fits AR-15 For Builds or Repair Includes Takedown Pin, Receiver Pivot Pin,...

The Magpul Enhanced Trigger Guard — Aluminum, Drop-In (MAG015-BLK) is Magpul's billet aluminum enhanced trigger guard for AR-15/M4 pattern lower receivers. The Magpul Enhanced Trigger Guard replaces the standard hinged mil-spec trigger guard with a...

The Talon ambidextrous safety selector is a modular design that can be installed as a standard 90 degree or as a 45 degree short throw by simply rotating the shaft 180 degree inside the lower receiver. Selector levers install using a precision machined...

Lower Parts Kit made from only the highest quality Mil-Spec or better components. The SOLGW Bolt Catch and Safety Selector are a Mil-Spec AISI8620 investment casting per the USGI TDP. Their Safety and Takedown Pivot Detents are solid hardened Stainless...

The Daniel Defense Lower Parts Kit, Semi-Auto is for those interested in assembling their own AR15. Although there are many manufacturers of so-called MIL-SPEC parts, we have gone to great lengths to ensure the parts we provide are of the...

The LMT Defense 5.56 Lower Parts Kit Light (R-LM556LPKL) provides all the mil-spec small parts needed to complete an AR-15 lower receiver build — minus the trigger group. This "light" version is ideal for builders who already have a preferred trigger...