Lower Receiver

The Forward Controls Design ABC/R (Augmented Bolt Catch/Release) features an angled, larger top paddle and a lower paddle with an increased surface area. It is purposefully designed for AR15/M16 receivers equipped with ambidextrous magazine releases,...

The Forward Controls Design Augmented Bolt Catch for LMT MARS-L (ABC/R v3 MARS-L) is FCD's ABC/R v3 bolt catch specifically dimensioned and designed for use with the LMT MARS-L ambidextrous lower receiver. The MARS-L version of the ABC/R v3 features the...

The advent of the ambidextrous charging handle, along with other ambidextrous controls, is a boon for AR15/M16 users, but it is not without unintended consequences. The forward assist rim is in the path of the user's fingernail or knuckle if he uses the...

The Forward Controls Design Magazine Release Button — Serrated EMR-HC (EMR-HC) is FCD's heavy, raised-profile enhanced magazine release button with serrated texture for AR-15/M16 pattern lower receivers. The EMR-HC (Enhanced Magazine Release,...

The Forward Controls Design Thread Protector — TPM Xeno (TPM Xeno) is FCD's precision-machined muzzle thread protector compatible with the XENO/Plan B/Atlas suppressor mount system. The TPM (Thread Protector, Muzzle, Forward Controls) Xeno variant is...

The Forward Controls Design Castle Nut A5 — CN5F FDE (CN5F-FDE) is FCD's precision-machined A5/VLTOR-compatible castle nut for AR-15 receiver extensions, finished in FDE (Flat Dark Earth). The CN5F (Castle Nut, A5 Forward Controls) is engineered to FCD's...

The Forward Controls Design Picatinny Rail Cover 1.7" (RCP1.7) is FCD's short-length Picatinny rail cover for protecting unused MIL-STD-1913 Picatinny rail slots on AR-15 uppers, handguards, and accessories. The compact 1.7" length is ideal for covering...

The Forward Controls Design Picatinny Rail Cover 3.3" (RCP3.3) is FCD's medium-length Picatinny rail cover for protecting unused sections of MIL-STD-1913 Picatinny rail. The RCP (Rail Cover, Picatinny, Forward Controls) protects rail surfaces from damage...

The Forward Controls Design Picatinny Rail Cover 4.07" (RCP4.07) is FCD's full-length Picatinny rail cover for protecting unused MIL-STD-1913 Picatinny rail sections on AR-15 uppers, handguards, and accessories. The RCP (Rail Cover, Picatinny, Forward...

RCP (Rail Cover, Picatinny) is a 1913 / Picatinny rails panel with the AA (All Angles), or dimpled texture.  We use the dimpled surface on applications where it makes sense: bolt catches, magazine release buttons.  The AA, or dimpled surface,...

Includes: M-16 Fire Control Group Fire Control Group Pins and Springs M-16 Sear Sear Spring Sear Pin Bolt Catch Assembly Mag Catch Assembly Front Pivot Pin Rear Takedown Pin (2) Takedown Pin Springs (2) Takedown Pin Detents Pistol Grip Pistol Grip...

The Magpul B.A.D. Lever AR-15 Bolt Catch Extension (MAG980-BLK) is Magpul's Battery Assist Device for the AR-15/M4 platform — a lever that attaches to the standard AR-15 bolt catch and extends into the trigger guard area, allowing the shooter to use the...