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 stock
Surefire - EDC flashlight 5/500 Lumens - EDCL1-T
Surefire
$215.00The Everyday Carry Light 1 is an upgraded version of SureFire's best-selling EB1 Backup(R). Otherwise it's all about bold, in-your-face performance, with its high-output LED delivering 500 lumens...$215.00 -
Out of stockOn Sale
Surefire - 6PX Tactical Pro Flashlight - 6PX-D-BK
Surefire
Now: $113.00Was: $125.00The 6PX Pro's high-efficiency LED-virtually immune to failure since there's no filament to burn out or break-provides two light output levels: a brilliant, penetrating, perfectly pre-focused...Now: $113.00Was: $125.00 -
Out of stockOn Sale
Holosun - Multi Laser Device - LS321R
Holosun
Now: $769.99Was: $905.87LS321 is a multi-laser device that integrates red laser, IR laser and IR illuminator. It has a mode selector to choose the different functions. The operator uses W&E adjuster to adjust the 3...Now: $769.99Was: $905.87 -
Out of stock
Holosun - Multi Laser Device - LS321G
Holosun
$970.58The LS321 is a multi-laser device that integrates green laser, IR laser and IR illuminator. It has a mode selector to choose the different functions. The operator uses W&E adjuster to adjust the 3...$970.58 -
Out of stock
Gemtech - Complete Upper Receiver 5.56NATO 16.1" - 13833
$839.00Introducing the new GVAC system from Gemtech. Significantly reduce the amount of gas blowback you'll experience wwhen shooting suppressed with its patented design. The re-imagined barrel profile,...$839.00 -
Out of stock
Sig Sauer - X-change kit P320 to M17 9mm - 8900268
Sig Sauer
$549.99This kit converts a P320 to a non-manual safety version of the renowned M18. This M17 conversion kit comes in the 3.9" configuration with 1 17 round magazine and 2 21 round magazines. UPC<$549.99 -
Out of stock
Colt - Complete Upper 223 Rem/556NATO 16" - LE6920EPR-CK
Colt
$1,049.00The durability, reliability and excellent build quality of Colt uppers will provide years of service you can count on. Chambered in 223Rem/5.56NATO featuring a 16" barrel and a MLOK free float...$1,049.00 -
Out of stockOn Sale
CMC - Lower Parts Kit for AR-15 - 81503
CMC Triggers
Now: $224.10Was: $249.00Enhanced with a 3.5lb Single Stage Flat Trigger, this kit is a great addition to your AR15 build. From amateur gun builder to seasoned expert gun smith, this lower parts kit is for you. NOTE: Grip...Now: $224.10Was: $249.00 -
Out of stockOn Sale
Rise Armament - Rave Lower Parts Kit w/ Trigger - T017-12003
Rise Armament
Now: $139.99Was: $180.00UPC 850011713174 Manufacturer Rise Armament Manufacturer Part # T017-12003Now: $139.99Was: $180.00 -
Out of stock
Knight's Armament - 4 Rib Rail Panel - Black - 97166
Knights Armament Company
$28.15The Knight's Armament 4-Rib Rail Panel — Black (KAC PN: 97166) is KAC's 4-rib polymer panel for covering unused Picatinny rail slots on KAC RAS and other quad-rail handguards. The 4-rib design covers...$28.15 -
LMT Defense - Tactical Charging Handle Assembly - .308 - #LM308CA
LMT Defense
MSRP: $130.00$123.30The Lewis Machine and Tool Tactical AR-10 charging handle makes charging your weapon much easier in stressful situations or when you simply want to go faster. The large tactical latch is easy to grab...MSRP: $130.00$123.30 -
Out of stockOn Sale
LMT Defense - 5.56 lower parts kit w/trigger - LM556LPK
LMT Defense
Now: $313.20Was: $322.65Complete your build with only the best lower parts kit available. This is the same kit that LMT’s world famous weapons are built with so why wouldn’t you want it in your rifle? 100% American...Now: $313.20Was: $322.65