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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On Sale
Sig Sauer - P365 Spectre Comp Optics Ready 3.1" Slide Assembly - 8901047
Sig Sauer
MSRP: $499.99Now: $414.99Was: $499.99The Sig Sauer P365 Spectre Comp Optics Ready 3.1" Slide Assembly (8901047) is a drop-in, complete slide upgrade for P365 pistols, featuring a built-in compensator integrated into the slide for...MSRP: $499.99Now: $414.99Was: $499.99 -
Out of stockOn Sale
Reptilia RECC-E Carbine Length AR-15 Stock - FDE #100-142
Reptilia
Now: $143.96Was: $159.95Introducing the RECCE Carbine Stock by Reptilia! After more than two years of development and testing, Reptilia is proud to announce the RECCE Stock for AR15/M16 and AR10/SR25 pattern rifles...Now: $143.96Was: $159.95 -
Out of stockOn Sale
Reptilia RECC-E Carbine Length AR-15 Stock - Black #100-141
Reptilia
Now: $143.96Was: $159.95Introducing the RECCE Carbine Stock by Reptilia! After more than two years of development and testing, Reptilia is proud to announce the RECCE Stock for AR15/M16 and AR10/SR25 pattern rifles...Now: $143.96Was: $159.95 -
Dead Air Armament - Ghost Piston 1/2 x 28 RH - Black Finish - DA401
Dead Air Armament
$89.00The Dead Air Armament Ghost Piston 1/2x28 RH — Black (DA401) is Dead Air's replacement/expansion piston for the Ghost pistol suppressor series with 1/2x28 RH barrel threading. Dead Air's piston...$89.00 -
Dead Air Armament - KeyMo Flash Hider 1/2x28 RH - DA301
Dead Air Armament
$89.00The Dead Air Armament KeyMo Flash Hider 1/2x28 RH (DA301) is Dead Air's proprietary KeyMo muzzle device for 5.56mm/.223 rifles with 1/2x28 RH threading. The KeyMo Flash Hider simultaneously provides...$89.00 -
Out of stockOn Sale
Surefire - Replacement Rear Cap Assembly M6XX Scoutlight Series - #UE-SR07-BK
Surefire
Now: $143.00Was: $159.00Surefire, Replacement Rear Cap Assembly, Fits M6XX Scoutlight Series, Includes SR07 Rail Mount Tape Switch, Black Finish Surefire replacement rear cap assembly for Scoutlight series with included...Now: $143.00Was: $159.00 -
On Sale
Sons of Liberty Gun Works - Gas Block .750 V2 - Nitride Finish - GB750V2
Sons of Liberty Gunworks
MSRP: $50.00Now: $45.00Was: $52.50As the gas system blowback style is typically the standard for most AR-15 style rifles, an AR-15 gas block is essential in the operation of the rifle. Designed to direct the gas back into the gas...MSRP: $50.00Now: $45.00Was: $52.50 -
Volquartsen - Recoil Buffer for 10/22 and 10/22 Magnum - VC10RB
Volquartsen
$12.38The Volquartsen Recoil Buffer for Ruger 10/22 and 10/22 Magnum (VC10RB) is Volquartsen's replacement recoil buffer for the Ruger 10/22 and 10/22 Magnum. The recoil buffer cushions the bolt's rearward...$12.38 -
Volquartsen - Bolt Tune-Up Kit for Ruger 10/22 - VC10FE
Volquartsen
$38.70The Volquartsen Bolt Tune-Up Kit for Ruger 10/22 (VC10FE) is Volquartsen's precision bolt upgrade kit for the Ruger 10/22, containing components that improve the reliability and smoothness of the...$38.70 -
Out of stock
Barrett - Soft Mount M82A1 & M107A1 Models Stainless - #13347
Barrett Firearms
$1,175.00This is a new Barret Firearms Soft mount compatible with 82A1 and M107A1 models. Designed exclusively for the Model 82A1/M107 series rifles, the Barrett Soft Mount attaches to the rifle’s lower...$1,175.00 -
Out of stock
Unity Tactical Hot Button Light Activation Switch Picatinny Compatible with Surefire Tailcaps Black #HBR-SB
Unity Tactical
$119.00Hot Button is a revolutionary control device for weapon-mounted electronic accessories. It provides a 45 degree angle button interface for a more natural press angle at any position around a weapon...$119.00 -
LMT Defense - Rear Takedown Pin - .308 - LM308A7
LMT Defense
$14.22The LMT Defense Rear Takedown Pin for .308/AR-10 (LM308A7) is a precision-machined replacement rear takedown pin designed specifically for LMT's MARS-H and MWS .308/7.62x51mm AR-10 platform lower...$14.22