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
LMT Defense 5.56 Full Auto Piston Bolt Carrier Group - L7D3CP
LMT Defense
$468.00This is a new Lewis Machine & Tool 5.56 piston AR15 bolt carrier group for use in piston-operated systems. It features optimization for use in short-barreled rifles.$468.00 -
LMT Defense - Torque Wrench - R-LTW
LMT Defense
MSRP: $108.00$100.35The LMT Defense Torque Wrench (R-LTW) is a precision tool purpose-built for LMT MRP and MWS barrel systems. Pre-set to 140 inch-pounds, this torque wrench ensures proper installation of MRP and MWS...MSRP: $108.00$100.35 -
Out of stockOn Sale
Streamlight TLR-1 Tactical Weapon Light - Police Trade-In
Streamlight
MSRP: $124.99Now: $99.99Was: $124.99MSRP: $124.99Now: $99.99Was: $124.99 -
BT Atlas - V8 Atlas Bipod - BT10
BT Atlas
$299.95The BT10 V8 Atlas Bipod mounts directly to any 1913 style Picatinny rail via a low profile two screw clamp assembly. It is comprised of 6061-T6 aluminum that is Mil-Spec Type III hard coat anodized...$299.95 -
Out of stockOn Sale
Aimpoint - Used Micro H-2 Red Dot Reflex Sight 2 MOA LRP Mount and Spacer - 200211-USED
Used
Now: $495.00Was: $550.00This is a used Aimpoint Micro H-2 compact reflex optic with a 2 MOA red dot reticle with an AR-15 ready QD picatinny mount. This optic ships as shown with no factory packaging and it is in great...Now: $495.00Was: $550.00 -
Out of stock
Knight's Armament - Like New 5.56 QDC 3-Prong Flash Suppressor Kit - 1/2"-28 TPI - 30555-Like-New
Knights Armament Company
$89.00These are in like-new condition, they were new rifle takeoffs. The KAC 3-Prong Flash Eliminator is an extremely effective flash suppressor design that also serves as a platform for attaching a...$89.00 -
Out of stock
Knight's Armament - DOD Surplus M16 M5 RAS Forend Assembly w/ No Rib Rail Panels - #98065-1-DOD
Knights Armament Company
$400.00DOD Surplus Stock KAC M5 RAS (Rail Adapter System) was developed for use on the US military's M16A4, and with hundreds of thousands of rails issued to date, it is one of the most battle proven...$400.00 -
On Sale
Aimpoint - ACRO S-2™ 9 MOA - Red Dot Reflex Sight w/ Integrated Shotgun Rib Mount - 200907
Aimpoint
Now: $755.00Was: $839.00The Aimpoint ACRO S-2™ 9 MOA Red Dot Reflex Sight (Model 200907) is Aimpoint's dedicated shotgun red dot sight, purpose-built for mounting on ventilated shotgun ribs. Based on the proven Acro 2nd...Now: $755.00Was: $839.00 -
Trijicon - ACOG 1.5X16mm Dual Illuminated Green Ring & 2 MOA Dot - TA44-C-400329
Trijicon
$1,357.00The Trijicon 1.5x16S Compact ACOG® Scope (Model TA44-C-400329) is the ultimate compact riflescope for close-quarters combat, tactical teams, and speed-oriented competition. The ACOG (Advanced Combat...$1,357.00 -
Out of stock
Trijicon - ACOG® 6x48 BAC Riflescope .50 BMG - #TA648-50
Trijicon
$3,230.00The military’s need for a magnified, self-luminous tactical sight that enhances target identification and increases hit probability on extended-range shots has given rise to the new Trijicon ACOG®...$3,230.00 -
Out of stock
Trijicon - 3x30 Compact ACOG® Scope .223 / 69gr. - #TA33-C-400368
Trijicon
$1,476.00Designed specifically for law enforcement and military applications, the Trijicon ACOG® 3x30 (Advanced Combat Optical Gunsight) riflescope offers the right combination of ample magnification, low...$1,476.00 -
Out of stock
Knight's Armament - DOD Surplus M16 M5 RAS Forend Assembly - #98065-DOD
Knights Armament Company
$400.00DOD Surplus Stock KAC M5 RAS (Rail Adapter System) was developed for use on the US military's M16A4, and with hundreds of thousands of rails issued to date, it is one of the most battle proven...$400.00