Lower Receiver

The Forward Controls Design Adjustable Turret Cap for Aimpoint Micro T1/T2 (ATA) is FCD's precision-machined replacement turret cap for Aimpoint Micro T-1 and T-2 red dot sights. The ATA (Adjustable Turret Cap, Forward Controls) replaces the factory...

The Forward Controls Design Heavy Rail Mounted Fixed Loop Sling Adapter (RSF-H) is FCD's billet steel, heavy-duty fixed loop sling adapter that mounts directly to any MIL-STD-1913 Picatinny rail section. The RSF-H (Rail Sling, Fixed loop, Heavy, Forward...

The Forward Controls Design Sling Adapter End Plate — Black DLC (ESF-H Black DLC) is FCD's enhanced QD sling socket end plate for AR-15/M16 carbine lower receivers, finished in Diamond-Like Carbon (DLC) coating for maximum hardness, corrosion resistance,...

CN5F (Castle Nut, A5, Forward Controls) is an extended version of CNF we've been making since 2018.  CN5F is designed specifically for the superb Vltor A5 system, CN5F is 0.1" longer, and is as long as we can make a castle nut while ensuring...

The Forward Controls Design Carbine Receiver Extension (REF) is FCD's precision-machined standard carbine buffer tube for AR-15/M16 lower receivers. The REF is machined to tighter tolerances than commercial mil-spec receiver extensions, providing a...

The Forward Controls Design HSM Hand Stop M-LOK (HSM) is FCD's compact hand stop for M-LOK compatible handguards, available in Black, FDE, and ODG (Olive Drab Green) colors. The HSM (Hand Stop, M-LOK, Forward Controls) provides a positive indexing point...

Get your AR-15 ready for action with this complete upper combo, bringing together premium components from leading manufacturers to deliver reliability, accuracy, and durability. LMT Defense - MRP-L Quad Rail 13.25" AR-15 Upper Receiver (L7RA1A):...

RHF (Railed Handguard, Forward Controls) is based on the superb CMT UHPR Mod2, with full length 1913 rails at 12 o'clock, and MLOK at 3, 6, and 9 o'clock.   Since its introduction in 2018, RHF has progressively become more robust and durable with...

The Forward Controls Design Low Snag Forward Assist — Dimpled (LSFA-AA) is FCD's most minimalist forward assist design for AR-15/M16 upper receivers. The LSFA (Low Snag Forward Assist, Forward Controls) takes the low-drag concept further than the LDFA by...

The Forward Controls Design Low Drag Forward Assist — Dimpled (LDFA-AA) is FCD's low-profile forward assist for AR-15/M16 upper receivers, featuring FCD's all-around dimpled texture pattern. Like the standard LDFA, the LDFA-AA dramatically reduces the...

The Forward Controls Design Low Drag Forward Assist (LDFA) is FCD's sleek, redesigned forward assist for AR-15/M16 upper receivers. The standard AR-15 forward assist features a large, protruding serrated button that can snag on gear, kit, and clothing...

We have long been fans of the classic KAC RAS since the early 2000s.  Throughout the years, we've seen trends for lighter, small diameter, and rails-only-where-you-want-them hand guards, this was before the advent of Keymod and MLOK.  Then quad...