Gun Parts
Welcome to the Gun Parts superstore at Boss Firearms Company, LLC. Whether you are undertaking a custom precision build, performing routine armorer maintenance, or upgrading an existing platform, we stock the high-performance components you need. As an authorized dealer for premium OEM and aftermarket manufacturers, we provide everything from stripped receivers and match-grade triggers to enhanced bolt carrier groups (BCGs) and duty-ready barrels for rifles, handguns, and shotguns.
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Out of stockOn Sale
LMT Defense - 7.62 NATO Barrel Assembly 18" Stainless Steel - #LM308B218S
LMT Defense
MSRP: $947.00Now: $852.30Was: $877.95LMT Defense 18″ stainless steel 1:11.25″ RH 5R cut 7.62×51 barrel for MWS upper receivers. Includes low profile gas block, straight gas tube, A2 flash hider. SPECSMSRP: $947.00Now: $852.30Was: $877.95 -
On Sale
Surefire - 300 lumen weapon light - XC2-B-RD
Surefire
Now: $494.00Was: $549.00The SureFire XC2-B 300 Lumen Weapon Light with Red Laser (XC2-B-RD) is SureFire's ultra-compact handgun light/red laser combo designed for compact and subcompact pistols with rails. The XC2 series is...Now: $494.00Was: $549.00 -
Heckler & Koch - HK45 Tactical Threaded Barrel - 5.11" - 226351
Heckler & Koch
$280.00The Heckler & Koch HK45 Tactical Threaded Barrel — 5.11" (HK PN: 226351) is the genuine HK factory replacement threaded barrel for the HK45 Tactical pistol, providing a 5.11" barrel length and...$280.00 -
Out of stockOn Sale
Knight's Armament - 5 Rib Rail Panel - Black - #97167
Knights Armament Company
Now: $26.59Was: $27.99KAC’s iconic Ribbed Rail Panels have seen use all over the globe on US military M4 Carbines. The lightweight polymer panels are ribbed for an enhanced grip, and help insulate the support hand from...Now: $26.59Was: $27.99 -
Out of stockOn Sale
Knight's Armament - 7.62 QDC Open Brake Kit - 3/4"-24 TPI - #115992
Knights Armament Company
Now: $370.32Was: $389.81KAC- Knight's Armament 7.62 QDC OPEN BRAKE KIT, 3/4"-24 TPI (115992) The 7.62 QDC OPEN BRAKE KIT, 3/4"-24 TPI, developed for 7.62/6.5 platforms. It accepts KAC’s QDC line of sound suppressors,...Now: $370.32Was: $389.81 -
Out of stock
Daniel Defense Remington 700 Pro Chassis System
Daniel Defense
$1,232.00The Daniel Defense Pro Chassis System gives marksmen a competitive option for their Remington 700 rifle. This chassis is a drop-in replacement for bolt-action rifles with the R700 Action footprint...$1,232.00 -
Spuhr - 34mm Cantilever Mount 6 MIL - 1.18" Gen 3 - SP-4601C
Spuhr
$500.00Spuhr SP-4601C: 34mm Cantilever Mount 6 MIL - 1.18" 6 MIL/20,6 MOAHeight: 30 mm/1.18”Clearance: 8 mm/.314" (from the bottom of the tube to bridge of the mount body)Length: 120 mm/4.72” (body)/130...$500.00 -
Out of stock
Spuhr - 34mm Cantilever Scope Mount 6 MIL/20.6 MOA Quick Detach - #QDP-4616
Spuhr
$600.00Quick detachable cantilever mount featuring side clamp and dual levers on the left side of the mount, with tensioning screws on opposite side of the mount body. Absolute co-witness most clip-on NV...$600.00 -
Spuhr - 30mm Picatinny Mount 0 MOA - 1.181" - SP-3001M
Spuhr
$515.00SP-3001 - Mount for Picatinny Rail Ring Size: 30mm Tilt: 0 MIL/0 MOA Height:$515.00 -
Out of stock
Unity Tactical Clutch belt large (37"-47" waist) Gray
Unity Tactical
$150.00CLUTCH is the ultimate solution for concealment of mission critical gear in non-permissive environments. Designed to make a combat loadout disappear under civilian clothes, CLUTCH is a must-have...$150.00 -
Out of stock
Unity Tactical clutch belt medium (31"-38" waist)
Unity Tactical
$150.00Unity Tactical, Clutch Belt, Medium, 31"-38" Waist, Elastic Construction, Black CLUTCH is the ultimate solution for concealment of mission critical gear in non-permissive environments. Designed...$150.00 -
On Sale
Unity Tactical fusion folding sight
Unity Tactical
MSRP: $96.00Now: $87.00Was: $96.00The Unity Tactical Fusion Folding Sight (FUS-S1B) is a precision-machined, foldable backup iron sight (BUIS) system from Unity Tactical designed for use with AR-15, M4, and similar rifles. The Fusion...MSRP: $96.00Now: $87.00Was: $96.00