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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Knight's Armament - Rib Rail Panel - 95047
Knights Armament Company
MSRP: $27.99$26.74The Knight's Armament Rib Rail Panel (KAC PN: 95047) is KAC's ribbed polymer rail panel for covering unused slots on KAC RAS (Rail Adapter System) Picatinny quad-rail handguards. The rib design...MSRP: $27.99$26.74 -
On Sale
Unity Tactical, fast LPVO Mount, 2.05" Optical Height, Compatible with 30mm Tube Size
Unity Tactical
MSRP: $369.00Now: $335.00Was: $369.00The Unity Tactical FAST LPVO Mount with 2.05" Optical Height for 30mm tube scopes (FST-S30205B) is a premium, precision-machined scope mount engineered to bring the optic axis to 2.05" above the bore...MSRP: $369.00Now: $335.00Was: $369.00 -
Out of stockOn Sale
Magpul PMAG M3 20rd. .223/5.56mm AR15 Magazine
Magpul Industries
MSRP: $14.95Now: $14.20Was: $14.95The next-generation PMAG 20 AR/M4 GEN M3 is a 20-round 5.56x45 NATO (.223 Remington) polymer magazine for AR15/M4 compatible weapons. Along with expanded feature set and compatibility, the GEN M3...MSRP: $14.95Now: $14.20Was: $14.95 -
Out of stock
Volquartsen - Accurizing Kit for the Ruger MK IV Pistol - VC4AK
Volquartsen
$165.00The complete drop-in kit comes complete with our CNC Machined Disconnector, Target Hammer, Hammer Bushing, Target Sear, Target Trigger with plunger and spring. It also comes with pretravel and...$165.00 -
Volquartsen - Pistol Competition Kit for The Ruger MK IV 22/45 - VC4PCK
Volquartsen
$194.00The Volquartsen Pistol Competition Kit for Ruger MK IV 22/45 (VC4PCK) is Volquartsen's comprehensive competition upgrade kit for the Ruger Mark IV 22/45 pistol. The competition kit includes all the...$194.00 -
Out of stock
Volquartsen 10/22 Competition Bolt - #VC10BLT
Volquartsen
$270.00Complete CNC-Machined Bolt features our hardened and tuned extractor for positive, consistent extraction. It also includes our round titanium firing pin. This round design eliminates the unnecessary...$270.00 -
Out of stock
Sig Sauer - Romeo MSR Green Dot - SOR72002
Sig Sauer
$129.99The ROMEO-MSR is a sealed compact red dot or green dot sight intended for MSR,Â$129.99 -
On Sale
KA-BAR Tanto 8" Fixed Blade with Nylon Sheath
KA-BAR Knives
Now: $99.68Was: $133.97The Tanto blade shape, of Asian influence, has a thick pointed blade that's good for penetration. Coupled with a glass-filled nylon sheath this knife is designed for the toughest of tasks. Â Hard...Now: $99.68Was: $133.97 -
KA-BAR USMC 7" Fixed Blade
KA-BAR Knives
$89.99The most famous fixed blade knife in the World. Â Our KA-BAR was designed to serve our troops during World War II and is still doing its job, with honors, 70+ years later. Tang stamped USMC. Leather...$89.99 -
On Sale
Magpul PMAG M3 40rd. .223/5.56mm AR15 Magazine MAG233-BLK
Magpul Industries
Now: $21.80Was: $22.95The Magpul PMAG 40 AR/M4 GEN M3 .223/5.56 Magazine (MAG233-BLK) is Magpul's high-capacity 40-round PMAG for AR-15/M4 pattern rifles chambered in 5.56 NATO or .223 Remington. The PMAG 40 M3 features...Now: $21.80Was: $22.95 -
Knight's Armament - Combat Trigger Guard Kit - KM20491-1
Knights Armament Company
$49.93The KAC Combat Trigger Guard is enlarged for use with gloves or for shooters with large hands. It is compatible with most mil-spec AR-15 lower receivers, but may require slight fitting in some...$49.93 -
Knights Armament - Free Float Rifle RAS - 21318
Knights Armament Company
$452.52The Knight's Armament Free Float Rifle RAS (KAC PN: 21318) is KAC's free-float Rifle-length Rail Adapter System for AR-15/M16 pattern rifles. The KAC RAS (Rail Adapter System) provides full-length...$452.52