Parts & Accessories
Shop AR-15 and AR-10 parts and accessories from Boss Firearms. Our parts inventory includes LMT upper and lower receivers, Proof Research carbon fiber barrels, Forward Controls Design components, Geissele triggers, Magpul furniture, BCM parts, SureFire lights, and much more. Whether you're building a new rifle or upgrading your current setup, we carry the hard-to-find components trusted by military, law enforcement, and serious civilian shooters.
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Forward Controls Design - VLTOR A5 Compatible Receiver Extension - RE5F-Cerakote BB
Forward Controls Design, Inc
MSRP: $78.00$74.10The Forward Controls Design VLTOR A5 Compatible Receiver Extension (RE5F-Cerakote BB) is FCD's enhanced carbine receiver extension (buffer tube) compatible with the VLTOR A5 buffer and spring system for AR-15/M16 platforms. The RE5F (Receiver Extension,...MSRP: $78.00$74.10 -
Out of stockOn Sale
Forward Controls Design - VLTOR A5 Compatible Receiver Extension - #RE5F-Cerakote ODG
Forward Controls Design, Inc
MSRP: $78.00Now: $66.30Was: $78.00RE5F is a 9 position 308 AR compatible receiver extension (RE), it is also compatible with Vltor's splendid A5. RE5F is a collaboration with SOLGW, and is identical to Sons of Liberty Gunworks Loyal 9 A5 RE save for the respective company logo/name...MSRP: $78.00Now: $66.30Was: $78.00 -
Out of stockOn Sale
Forward Controls Design - VLTOR A5 Compatible Receiver Extension - #RE5F-Cerakote FDE
Forward Controls Design, Inc
MSRP: $78.00Now: $66.30Was: $78.00RE5F is a 9 position 308 AR compatible receiver extension (RE), it is also compatible with Vltor's splendid A5. RE5F is a collaboration with SOLGW, and is identical to Sons of Liberty Gunworks Loyal 9 A5 RE save for the respective company logo/name...MSRP: $78.00Now: $66.30Was: $78.00 -
Forward Controls Design - Semi-Auto 50° Non-Offset Levers - ASF-50
Forward Controls Design, Inc
$90.25The Forward Controls Design Semi-Auto 50° Non-Offset Ambidextrous Safety Selector (ASF-50) is FCD's 50-degree short-throw semi-auto safety selector with standard (non-offset/centered) levers for AR-15/M16 pattern rifles. The ASF (Ambidextrous Selector,...$90.25 -
Out of stockOn Sale
Forward Controls Design - 90° Q Levers - #ASF-90Q
Forward Controls Design, Inc
Now: $90.25Was: $95.00ASF-90Q is a conventional (rotate to 90 degree for FIRE/SEMI) semi auto selector with q (offset) levers. ASF (Ambidextrous Selector, Forward Controls) and SOLGW’s The Quick is a joint project between FCD and SOLGW. The two companies have been...Now: $90.25Was: $95.00 -
Forward Controls Design - 90° Non-Offset Levers - ASF-90
Forward Controls Design, Inc
$90.25The Forward Controls Design 90° Non-Offset Ambidextrous Safety Selector (ASF-90) is FCD's 90-degree full-throw semi-auto safety selector with non-offset (standard) levers for AR-15/M16 pattern rifles. The ASF (Ambidextrous Selector, Forward Controls)...$90.25 -
Out of stock
LMT Defense - Quick Detach Rebar Cutter - #REA
LMT Defense
$119.99This is a new LMT Defense Barrel Mounted Rebar Cutter. The LMT Rebar entry attachment was designed for military, government and law enforcement agencies to gain entry through rebar after a reinforced wall has been breached. However, the Rebar...$119.99 -
KAC Knights Armament Company URX 4, 5.56 M-LOK 14.5" Forend Kit 32304-1450
Knights Armament Company
$373.91The KAC Knight's Armament URX 4, 5.56mm M-LOK 14.5" Forend Kit (KAC PN: 32304-1450) is KAC's premier free-float M-LOK handguard for AR-15/M4/SR-15 pattern rifles. The URX 4 is fully modular, utilizing the revolutionary M-LOK accessory attachment system...$373.91 -
Volquartsen Summit Rifle Barreled Action .22 LR VCB-0282
Volquartsen
$1,165.00The Volquartsen Summit .22 LR Barreled Action (VCB-0282) is Volquartsen's Summit precision .22 LR bolt-action sold as a barreled action only — the rifle without a stock — for shooters who want to build a custom Summit-based .22 LR precision rifle with...$1,165.00 -
Out of stock
FCD Forward Controls Design Bolt Catch Forward Biased Paddle Serrated
Forward Controls Design, Inc
$58.90The 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,...$58.90 -
Out of stock
FCD Forward Controls Design Bolt Catch Rearward Biased Paddle Serrated
Forward Controls Design, Inc
$58.90The Forward Controls Design ABC/R (Augmented Bolt Catch/Release) is expertly crafted for AR15/M16 receivers with ambidextrous magazine releases. It features an angled, larger top paddle and a lower paddle with an increased surface area, specifically...$58.90 -
Out of stock
FCD Forward Controls Design 5.56 Bolt Catch Reward Biased Paddle Dimpled
Forward Controls Design, Inc
$58.90The 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,...$58.90