AR-15 Parts
Shop our extensive inventory of AR-15 parts and modern sporting rifle (MSR) components. From fully assembled MIL-SPEC upper receivers and enhanced lower parts kits to free-float M-LOK handguards and ambidextrous controls, we carry the critical components required for duty, defense, and custom builds.
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Forward Controls Design Augmented Bolt Catch For LMT MARS-L Black
Forward Controls Design, Inc
$58.00The 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...$58.00 -
Out of stock
FCD Forward Controls Design Low Snag Forward Assist Serrated #LSFA
Forward Controls Design, Inc
$45.60The 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...$45.60 -
FCD Forward Controls Design Magazine Release Button Serrated EMR-HC
Forward Controls Design, Inc
$16.15The 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...$16.15 -
FCD Forward Controls Design 6310XE 5/8x24 Flash Suppressor 6310XE
Forward Controls Design, Inc
$95.00The Forward Controls Design 6310XE Flash Suppressor / XENO Mount — 5/8x24 (6310XE) is FCD's 3-prong flash suppressor and XENO-compatible suppressor mount for .308/7.62x51mm and larger caliber rifles...$95.00 -
FCD Forward Controls Design Thread Protector, TPM Xeno
Forward Controls Design, Inc
$34.20The 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...$34.20 -
FCD Forward Controls Design Castle Nut A5 CN5F FDE
Forward Controls Design, Inc
$32.30The 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...$32.30 -
FCD Forward Controls Design Rail Cover, Picatinny 1.7" RCP1.7
Forward Controls Design, Inc
$11.40The Forward Controls Design RCP1.7 is a 1.7" Picatinny rail cover. Use it to cover short sections of exposed rail between accessories, protecting the rail and your hands. Specifications Part number:...$11.40 -
FCD Forward Controls Design Rail Cover, Picatinny 3.3"RCP3.3
Forward Controls Design, Inc
$15.20The 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,...$15.20 -
FCD Forward Controls Design Rail Cover, Picatinny 4.07" RCP4.07
Forward Controls Design, Inc
$17.10The 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...$17.10 -
Out of stock
FCD Forward Controls Design Rail Cover Picatinny 6.43" #RCP6.43
Forward Controls Design, Inc
$19.95RCP (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...$19.95 -
Magpul Industries M-LOK Aluminum 5 Slot Rail Section MAG581-BLK
Magpul Industries
$19.90The Magpul M-LOK Aluminum Rail Section — 5 Slot (MAG581-BLK) is Magpul's precision-machined aluminum Picatinny rail section for M-LOK compatible handguards, providing five (5) MIL-STD-1913 Picatinny...$19.90 -
Out of stock
Colt M-16 Lower Parts Kit - Full Auto
Colt
$199.99Includes: 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...$199.99