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
Surefire XR1 800 Lumen Rechargeable Weapon Light - XR1-A
Surefire
MSRP: $449.00Now: $404.00Was: $449.00The SureFire XR1 800 Lumen Rechargeable Weapon Light (XR1-A) is SureFire's rechargeable compact weapon light featuring two output levels (800 lumens high / 25 lumens low) and an integrated recharging...MSRP: $449.00Now: $404.00Was: $449.00 -
Heckler & Koch - MP5/SP5 9mm 30rd Magazine - 50223552-FDE
Heckler & Koch
$85.99The Heckler & Koch MP5/SP5 9mm 30-Round Magazine — FDE (HK PN: 50223552-FDE) is the genuine HK factory 30-round 9mm double-stack magazine for the MP5 and SP5/SP5K platforms, finished in FDE (Flat...$85.99 -
Out of stock
Glock 17 Gen 5 9mm Luger Complete Slide Assembly 4.49" (Pre-Owned)
Glock
MSRP: $249.99$199.00This is a used Glock 17 Gen 5 complete slide assembly chambered for 9mm Luger with AmeriGlo H3 night sights. This slide ships as shown with no factory packaging. It is in excellent condition with a...MSRP: $249.99$199.00 -
Out of stock
AB Suppressor 7.62 Raptor Flash Hider End Cap, Titanium #F22-7-FHEC-TI
AB Suppressor
$119.99Offered in both Titanium and Stainless, the Flash Hider End Cap will nearly eliminate the flash generated from the combusting gases of each shot. Available in 5.56, 7.62, .338 and .375. Titanium...$119.99 -
B5 Systems - Modular Platform Stock - Black - MPS-1553
B5 Systems
MSRP: $200.00$190.00The B5 Systems Modular Platform Stock (MPS) in Black (MPS-1553) is the full-featured flagship stock from B5 Systems, providing complete adjustability and functionality for AR-15 platforms. The MPS...MSRP: $200.00$190.00 -
Out of stock
LMT Defense - MRP-H MLOK 16" Complete Upper Receiver Bundle - #BFCLMT-H308M16P
LMT Defense
$2,399.99LMT Defense - MRP-H MLOK 12.5" AR10/AR308 Upper Receiver - #LM308BML1 The patented LMT monolithic rail platform (MRP) upper receiver, has a receiver and handguard that are made from a single piece of...$2,399.99 -
B5 Systems - Modular Platform Stock - Coyote Brown - MPS-1555
B5 Systems
MSRP: $200.00$190.00The B5 Systems Modular Platform Stock (MPS) in Coyote Brown (MPS-1555) is B5's most versatile and full-featured adjustable AR-15 stock, designed for precision shooters, military, and law enforcement...MSRP: $200.00$190.00 -
On Sale
Surefire - G2X Tactical Single-Output LED 600 Lumen Flashlight - G2X-C-BK
Surefire
MSRP: $99.00Now: $89.00Was: $99.00The SureFire G2X Tactical Single-Output LED Flashlight — 600 Lumens (G2X-C-BK) is SureFire's G2X Tactical model featuring a high-performance LED with 600-lumen output and a single constant-on...MSRP: $99.00Now: $89.00Was: $99.00 -
Arisaka Defense - Side Light Mount - SSM-P
Arisaka
$45.00The Patented Arisaka Side Scout Mount (SSM) is designed for use with Surefire Scout Lights, the Modlite PLH and OKW weapon lights, the Arisaka 300, 600 and 18650 Series, and the Streamlight Protac...$45.00 -
Knight's Armament - 2-Rib Picatinny Rail Panel - Black - 97164
Knights Armament Company
$27.99The Knight's Armament 2-Rib Picatinny Rail Panel — Black (KAC PN: 97164) is KAC's compact 2-rib polymer rail panel for covering short unused sections on KAC RAS Picatinny quad-rail handguards. The...$27.99 -
Heckler & Koch - HK P30/VP9 9mm 20rd Steel Magazine - 50256715
Heckler & Koch
$64.99The Heckler & Koch P30/VP9 9mm 20-Round Steel Magazine (HK PN: 50256715) is the genuine HK factory extended 20-round 9mm magazine for the HK P30 and VP9 pistol platforms. The extended 20-round...$64.99 -
LMT Defense - 410 SS Washer w/ Nitride - 5.56 - L7S1WAS
LMT Defense
MSRP: $5.40$4.86The LMT Defense MRP Locking Screw Washer for MRP-L 5.56 (L7S1WAS) is the genuine OEM replacement locking screw washer for LMT's MRP-L (light/AR-15) Monolithic Rail Platform upper receivers. This...MSRP: $5.40$4.86