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 - AR Enhanced Mag Release Button - Dimpled - EMR-H-AA
Forward Controls Design, Inc
MSRP: $17.00$16.15The Forward Controls Design AR Enhanced Magazine Release Button — Dimpled (EMR-H-AA) is FCD's heavy-profile, dimpled-texture enhanced magazine release button for standard AR-15/M16 pattern lower...MSRP: $17.00$16.15 -
On Sale
Surefire - Warden 5.56/7.62 Blast Regulator for SOCOM Muzzle Device - WARDEN-DE
Surefire
MSRP: $329.00Now: $296.00Was: $329.00The SureFire Warden 5.56/7.62 Blast Regulator — Desert Earth/FDE (WARDEN-DE) is SureFire's Warden blast regulator in Desert Earth finish for use with FDE-configured rifles. All features of the...MSRP: $329.00Now: $296.00Was: $329.00 -
On Sale
Magpul PMAG M3 30rd. .223/5.56mm AR15 Magazine - Coyote Tan
Magpul Industries
MSRP: $14.95Now: $14.20Was: $14.95The Magpul PMAG 30 AR/M4 GEN M3 .223/5.56 Magazine — Coyote Tan (MAG557-MCT) is Magpul's industry-standard 30-round GEN M3 PMAG for AR-15/M4 rifles, finished in Coyote Tan (MCT) for use with...MSRP: $14.95Now: $14.20Was: $14.95 -
VLTOR - A5 BUFFER - 3.80 TO 6.83OZ - A5H
Vltor Weapon Systems
$44.06 - $148.46The VLTOR A5 Buffer (A5H) is the critical component of VLTOR's A5 buffer system, a drop-in upgrade that replaces the standard mil-spec carbine buffer and spring with a longer, heavier buffer...$44.06 - $148.46 -
Forward Controls Design - 0.750 Gas Journal Gas Block - GBF
Forward Controls Design, Inc
MSRP: $65.00$61.75The Forward Controls Design 0.750" Gas Journal Low-Profile Gas Block (GBF) is FCD's precision-machined low-profile gas block for AR-15/M16 barrels with a standard 0.750" gas journal diameter. The GBF...MSRP: $65.00$61.75 -
Forward Controls Design - 50° Ambidextrous Safety Selector - ASF-50Q
Forward Controls Design, Inc
MSRP: $95.00$90.25The Forward Controls Design ASF-50Q Ambidextrous Safety Selector is a 50-degree short-throw semi-auto safety selector with FCD's distinctive offset "Q" levers — engineered from the ground up as a...MSRP: $95.00$90.25 -
On Sale
Magpul angled foregrip for MLOK handguard MAG598-BLK
Magpul Industries
Now: $25.60Was: $26.95The Magpul MOE M-LOK Angled Foregrip (MAG598-BLK) is Magpul's angled foregrip (AFG) designed for M-LOK compatible handguards. The MOE Angled Foregrip M-LOK provides the same proven angled grip...Now: $25.60Was: $26.95 -
On Sale
Unity Tactical Fast red dot riser. Elevates absolute co-witness to 2.26" Direct to Picatinny
Unity Tactical
MSRP: $105.00Now: $95.00Was: $105.00The Unity Tactical FAST Riser elevates absolute co-witness mounted red dots to 2.26" optical height (FST-ORAB) — designed for red dot sights mounted in absolute co-witness height rings/mounts that...MSRP: $105.00Now: $95.00Was: $105.00 -
Proof Research 20" 6.5 Creedmoor Carbon Fiber Barrel
Proof Research
$1,250.00The Proof Research 20" 6.5 Creedmoor Carbon Fiber Barrel (100042) represents the pinnacle of precision barrel technology, combining an aerospace-grade carbon fiber wrap over a 416R stainless steel...$1,250.00 -
Volquartsen - Ruger MK Series Competition Bolt - VC4BT-B
Volquartsen
$288.00Are you a competitive shooter looking to eliminate stovepipes, failures to fire and improve the overall performance of your Ruger MKII, MKIII, or MK IV pistol? The Competition Bolt is the...$288.00 -
Volquartsen - TG2000 Ruger 10/22 drop in trigger - VCTP-1-B-10
Volquartsen
MSRP: $296.00$279.00The Volquartsen TG2000 Ruger 10/22 Drop-In Trigger Group (VCTP-1-B-10) is Volquartsen's legendary drop-in trigger group for Ruger 10/22 rifles. The TG2000 is widely considered the finest aftermarket...MSRP: $296.00$279.00 -
On Sale
Magpul - PMAG D-50 9mm 50rd. Drum Magazine HK94/MP5 - MAG1181-BLK
Magpul Industries
MSRP: $124.95Now: $118.70Was: $124.95The Magpul PMAG D-50 9mm 50-Round Drum Magazine for HK94/MP5 (MAG1181-BLK) is Magpul's 50-round polymer drum magazine designed specifically for HK94, MP5, and MP5-compatible firearms using the...MSRP: $124.95Now: $118.70Was: $124.95