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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LMT Defense - MRP Locking Screw Washer - LM308B1WAS
LMT Defense
MSRP: $10.80$7.47The LMT Defense MRP Locking Screw Washer for MRP-H .308 (LM308B1WAS) is the genuine OEM replacement locking screw washer for LMT's MRP-H (heavy/.308/AR-10) Monolithic Rail Platform upper receivers...MSRP: $10.80$7.47 -
Surefire - Replacement Cap for M300 & M600 - UE-BK
Surefire
$71.00The SureFire Replacement Rear Cap for M300 & M600 Scout Light — Black (UE-BK) is SureFire's genuine replacement UE (User-Exchangeable) rear cap for M300 and M600 series Scout Lights. The UE rear cap...$71.00 -
Benelli - M4 Full Length 7rd 12ga 1 Piece Magazine Tube - 70052
Benelli
$119.00The Benelli M4 magazine comes factory Individually wrapped and labeled for authenticity don't settle for less. The Benelli m4 seven round magazine tube will replace the five round magazine and dummy...$119.00 -
Dead Air Armament - Ghost Fixed Barrel Spacer - DA409
Dead Air Armament
$39.00The Dead Air Ghost Fixed Barrel Spacer (DA409) is an essential accessory for mounting the Dead Air Ghost suppressor series on pistols with fixed, non-threaded barrels. This spacer allows the Ghost 9...$39.00 -
Geissele Automatics - SD-E Super Dynamic Enhanced 2-Stage Flat Trigger - 05-167
Geissele Automatics
$245.00The Geissele Super Dynamic-Enhanced (SD-E) Trigger featuring an exclusive flat trigger bow, is a finely-tuned two stage trigger providing enhanced trigger control and weapon accuracy while...$245.00 -
Geissele Automatics - SSA-E Super Sem-Auto Enhanced 2-Stg Curved Trigger - 05-160
Geissele Automatics
$245.00Built on the chassis of the Geissele SSA®, the Super Semi-Automatic Enhanced (SSA-E®) provides enhanced trigger control and weapon accuracy while maintaining the robustness and reliability of...$245.00 -
Out of stock
Knight's Armament - Panel Kit URX 3 & 3.1 - #30408-BLK-USED
Used
$200.00This is a used item in excellent condition. The KAC URX 3.1 Long Rail Panel Kit contains a basic assortment of protective panels that bolt directly to a Knight?s Armament URX III or 3.1 handguard...$200.00 -
On Sale
Two Vets Tripods - Kit V2 - KitV2
Two Vets Tripods
Now: $605.00Was: $620.00Application PRS/NRL Style Matches Hunting (Predator, Hog ) Back Woods Back Country Hunting Range Shooting Features Rubber Twist Locks new and improved rubber twist locks Vented tubes&Now: $605.00Was: $620.00 -
Out of stock
Two Vets Tripods - 44MM Dual Tension Ballhead W/ Arcalock Dual Clamp (Arca Swiss and Picatinny) - #44MM419QD
Two Vets Tripods
$270.00We’ve partnered with Area 419 to bring you the Area 419 Dual W/ Arcalock Clamp, now available on our ballheads. This innovative clamping system, when used alongside the Area 419 Arcalock rail,...$270.00 -
Out of stock
Ruger - Factory Ruger MK IV The Backup Upper 5.5" - #VCSCU-0034
Ruger
$40.00This upper comes equipped with adjustable sights, and its push-button takedown allows for quick and effortless swaps—easier than switching between open sights and an optic. It’s the ideal backup...$40.00 -
Out of stock
Ruger - Factory Ruger MK IV The Bare Bones Upper 5.5" - #VCSCU-0005
Ruger
$40.00This upper is our most budget-friendly option and a DIY enthusiast’s dream. It offers excellent value for those planning to use an optic or customize their barrel length, provided they have a lathe...$40.00 -
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