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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Dead Air Armament Xeno Flash Hider 5/8x24 DA122
Dead Air Armament
$75.00The Dead Air Xeno Flash Hider (DA122) with 5/8x24 thread pitch is a precision-machined muzzle device designed as the foundation of Dead Air's Xeno suppressor mounting system. The Xeno Flash Hider...$75.00 -
Heckler & Koch Three Position Retractable Buttstock 227901
Heckler & Koch
$732.50The Heckler & Koch Three-Position Retractable Buttstock (HK PN: 227901) is HK's genuine factory three-position adjustable/retractable buttstock for HK416, MR556, MR762, and compatible AR-pattern...$732.50 -
HK Heckler & Koch Fixed Side Folding Stock for SP5's 261249
Heckler & Koch
$320.00The Heckler & Koch Fixed Side Folding Stock for SP5 (HK PN: 261249) is the genuine HK factory fixed-position side folding stock for the SP5 and SP5K 9mm semi-automatic platforms. This folding stock...$320.00 -
LanTac USA M-Spec Carbine Gas Tube 01-MSPEC-GT-CRBN
LanTac
$18.99This is a new LanTac USA LLC M-Spec Carbine Gas Tube. It fits AR 15 with carbing length- gas system, comes complete with gas tube roll pin, is laser engraved, and manufactured from 306 stainless...$18.99 -
Armageddon Gear Suppressor Cover 175x6.75 AG0305
Armageddon Gear
$78.38Suppressor cover: 175x6.75 The Armageddon Gear Suppressor Mirage Cover is designed to reduce and delay suppressor mirage for improved sight picture and target visibility during precision shooting...$78.38 -
Armageddon Gear Standard Temp Suppressor Cover TBAC Magnus CB AG0352
Armageddon Gear
$78.38Suppressor cover: standard high-temp, TBAC Magnus CB The Armageddon Gear Suppressor Mirage Cover is designed to reduce and delay suppressor mirage for improved sight picture and target visibility...$78.38 -
Armageddon Gear Standard Temp Suppressor Cover Otter Creek Polonium & Polonium 30 AG0222
Armageddon Gear
$78.38Suppressor cover: standard high temp, Otter Creek Polonium/ Polonium 30. The Armageddon Gear Suppressor Mirage Cover is designed to reduce and delay suppressor mirage for improved sight picture and...$78.38 -
Q LLC - Mini Fix Multi Tool TOOL-MULTI-FIX
Q LLC
$69.00Q LLC Mini Fix Multi Tool TOOL-MULTI-FIX This is a handy tool to stick in your bag when hitting the range or work bench. Use it to swap your barrel, install accessories, remove your silencer,...$69.00 -
Out of stock
LMT Defense - 20" MWS .260 REM Barrel Assembly - #R-LM260B220S
LMT Defense
$893.00The 20-inch stainless-steel .260 Remington chambered MWS barrel features 5R right-hand rifling with a 1:9 twist. Designed for the LMT MWS receiver, this barrel utilizes a low-profile gas block,...$893.00 -
Out of stockOn Sale
Streamlight TLR-1 Tactical Weapon Light - Police Trade-In
Streamlight
MSRP: $124.99Now: $99.99Was: $124.99MSRP: $124.99Now: $99.99Was: $124.99 -
BT Atlas - V8 Atlas Bipod - BT10
BT Atlas
$299.95The BT10 V8 Atlas Bipod mounts directly to any 1913 style Picatinny rail via a low profile two screw clamp assembly. It is comprised of 6061-T6 aluminum that is Mil-Spec Type III hard coat anodized...$299.95 -
Out of stockOn Sale
Aimpoint - Used Micro H-2 Red Dot Reflex Sight 2 MOA LRP Mount and Spacer - 200211-USED
Used
Now: $495.00Was: $550.00This is a used Aimpoint Micro H-2 compact reflex optic with a 2 MOA red dot reticle with an AR-15 ready QD picatinny mount. This optic ships as shown with no factory packaging and it is in great...Now: $495.00Was: $550.00