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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Proof Research - 16" .300BLK LMT MRP Converted Barrel - 100561CONV
Proof Research
MSRP: $1,000.00$780.00The Proof Research 16" .300 Blackout LMT MRP Converted Barrel (100561CONV) is a precision carbon fiber barrel conversion designed to transform LMT MRP (Modular Rail Platform) rifles into .300...MSRP: $1,000.00$780.00 -
Proof Research - 24" .264 Bolt Action Rifle Barrel - 100912
Proof Research
$999.99The Proof Research 24" .264 Caliber Bolt Action Rifle Barrel (100912) is a premium carbon fiber barrel for bolt-action rifle builders seeking maximum velocity and match accuracy from 6.5mm cartridges...$999.99 -
Proof Research - 22" .264 Bolt Action Rifle Barrel - 105511
Proof Research
$999.99The Proof Research 22" .264 Caliber Bolt Action Rifle Barrel (105511) is a precision carbon fiber barrel for custom bolt-action rifle builds chambered in 6.5mm cartridges including 6.5 Creedmoor, 6.5...$999.99 -
SB Tactical - SBA5 Pistol Stabilizing Brace - SBA5X01SB
SB Tactical
$124.99The SBA5 Pistol Stabilizing Brace is 5-position adjustable and designed for all platforms capable of accepting a mil-spec carbine receiver extension. Featuring an integral, ambidextrous QD sling...$124.99 -
Proof Research - 24" .284 Bolt Action Rifle Barrel - 100943
Proof Research
$999.99The Proof Research 24" .284 Caliber Bolt Action Rifle Barrel (100943) is a match-grade, carbon fiber wrapped precision barrel designed for custom bolt-action rifle builds in .284 Winchester, 7mm-08...$999.99 -
Dead Air Armament - KeyMo Flash Hider 5/8x24 RH - DA302
Dead Air Armament
$89.00The Dead Air Armament KeyMo Flash Hider 5/8x24 RH (DA302) is Dead Air's KeyMo muzzle device for .308/7.62mm and larger calibers with 5/8x24 RH threading. Functions simultaneously as an effective...$89.00 -
On Sale
AB Suppressor - Raptor Flush Mount F22-FM
AB Suppressor
MSRP: $85.00Now: $75.00Was: $85.00The AB Suppressor Raptor Flush Mount F22-FM is the dedicated flush mount muzzle device host for the AB Suppressor F22 / Raptor series suppressor system for .22 LR platforms. The flush mount design...MSRP: $85.00Now: $75.00Was: $85.00 -
On Sale
Garmin - XERO C1 PRO - 0100261810
Garmin
MSRP: $923.98Now: $599.99Was: $923.98Whether you're handloading for the range or building arrows for the hunt, the Xero C1 Pro chronograph provides the speed data you need to hone your craft. At the size of a deck of cards the...MSRP: $923.98Now: $599.99Was: $923.98 -
Geissele Automatics - 30mm 1.54" AR-15 SOPMOD Vortex 1-6x Mount - 100025597
Geissele Automatics
$279.99This AR-15 Scope Mount is part of the Geissele® SOPMOD Certified Series, designed for use by elite military and counter-terrorism units within the U.S. Special Operations Command (USSOCOM). The...$279.99 -
LMT Defense - 13.5" Chrome Line 7.62 NATO Barrel - R-LM308B413
LMT Defense
MSRP: $697.00$646.20The LMT Defense 13.5" Chrome Lined 7.62 NATO MRP-H Barrel (R-LM308B413) is a mil-spec chrome-lined heavy-profile .308 barrel designed for the LMT MWS (Modular Weapon System) MRP-H upper receiver...MSRP: $697.00$646.20 -
Proof Research - 12.5" 300BLK LMT Carbon Fiber Barrel - 100523
Proof Research
$999.99The Proof Research 12.5" .300 Blackout LMT Carbon Fiber Barrel (100523) is a precision drop-in replacement barrel for LMT MRP/MWS quick-change barrel systems chambered in .300 Blackout. The 12.5-inch...$999.99 -
Noveske - 11.5" Commando Barrel 223 Rem/556NATO - 07000050
Noveske
$360.00The barrel ships with a gas block. This barrel is designed for our gas block that is 1″ long (INCLUDED). A standard front sight base is 1.9″ long and WILL NOT FIT. Barrel installation should be...$360.00