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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Montana Sling Black 1.25in. Gun Sling with Swivel
Montana Sling
$59.95Pack your hunting rifle in complete comfort all day long with this premium black leather sling that adjusts from carry position to shoulder-ready in only seconds. Single loop design with an...$59.95 -
Montana Sling Brown 1.25in. Gun Sling with Swivel
Montana Sling
$59.95Pack your hunting rifle in complete comfort all day long with this premium brown leather sling that adjusts from carry position to shoulder-ready in only seconds. Single loop design with an...$59.95 -
Out of stock
LMT Defense SOPMOD Stock AR-15/AR-10 L7LA2BAT
LMT Defense
$211.50The LMT Defense SOPMOD Buttstock in Flat Dark Earth/Tan (L7LA2BAT) is the iconic LMT SOPMOD adjustable stock — the preferred buttstock of USSOCOM operators, hence its name. Crafted from durable...$211.50 -
FCD Forward Controls Design Bolt Carrier Group Serrated SBCG-N-S
Forward Controls Design, Inc
$220.00The Forward Controls Design Bolt Carrier Group — Serrated (SBCG-N-S) is FCD's Secure-Staking BCG with nitride finish and serrated texture on the bolt carrier body. The SBCG-N-S (Secure-Staking BCG,...$220.00 -
FCD Forward Controls Design Bolt Carrier Group Dimpled SBCG-N-D
Forward Controls Design, Inc
$220.00The Forward Controls Design Bolt Carrier Group — Dimpled (SBCG-N-D) is FCD's Secure-Staking BCG with nitride finish and dimpled texture machined into the bolt carrier body. The SBCG-N-D...$220.00 -
STOPBOX USA- Universal Mag Carrier
STOPBOX USA
$34.00The STOPBOX USA Universal Mag Carrier (stopbox-magcarrier) is a versatile, compatible magazine carrier designed to organize and store handgun or rifle magazines alongside your STOPBOX firearm storage...$34.00 -
Ruger 10/22 Stripped Aluminum Receiver VCSCU-0130
Ruger
$65.00This is a new Ruger factor stripped aluminum receiver compatible with 10/22 pattern firearms. Black Stripped Made in the USA Note: These are stripped receivers so they will not come with any...$65.00 -
LMT Defense LMT Defense - MRP-H Quad Rail 12.75" AR10/AR308 Complete Upper Receiver Bundle BFCLMT-H308P16P
LMT Defense
$2,399.99The LMT Defense MRP-H Quad Rail 12.75" AR10/.308 Complete Upper Receiver Bundle (BFCLMT-H308P16P) is a complete, ready-to-mount LMT AR-10 piston upper receiver assembly combining LMT's MRP-H Quad...$2,399.99 -
VLTOR Receiver Extension 6 Position RE-10/A5SR
Vltor Weapon Systems
$56.66The VLTOR Receiver Extension 6-Position (RE-10/A5SR) is a specialized receiver extension providing 6-position adjustability for use with the VLTOR A5 buffer system or standard AR-10/SR-25 pattern...$56.66 -
Out of stock
Remington 870 Super Mag Receiver Assembly 2.75"-3" 12ga w/ Mag Tube
Remington
$100.00This is a Remington 870 Super Mag stripped receiver assembly compatible with 2.75” – 3.5” 12ga components. This receiver was removed from factory new firearms and the serial number shown in the above...$100.00 -
Out of stock
Remington 870 Magnum Receiver Assembly 2.75"-3" 12ga w/Mag Tube
Remington
$75.00This is a Remington 870 Magnum stripped receiver assembly compatible with 2.75” – 3” 12ga components. This receiver was removed from factory new firearms and the serial number shown in the above...$75.00 -
Out of stock
Volquartsen - Mini Mamba LLV for Ruger MK IV 22LR 3" #VC4LLV-0025
Volquartsen
$502.00This is a new Volquartsen Mini Mamba 3” upper receiver compatible with all Ruger Mark IV & Mark IV 22/45 pattern components. This upper will not ship with a bolt assembly. This upper has it all for...$502.00