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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Magpul - MOE Pistol Grip Black - MAG415-BLK
Magpul Industries
$19.90The Magpul MOE Pistol Grip — Black (MAG415-BLK) is Magpul's standard MOE (Magpul Original Equipment) pistol grip for AR-15/M4 rifles. The MOE Grip replaces the traditional A2 grip with an improved...$19.90 -
Out of stockOn Sale
Magpul - M-Lok Bipod - MAG933-BLK
Magpul Industries
Now: $109.20Was: $114.95The Magpul Bipod offers serious strength and versatility at a price that provides unmatched value. Rich with important features, our lightweight Mil-spec hard anodized 6061 T-6 aluminum and...Now: $109.20Was: $114.95 -
Out of stockOn Sale
Magpul - MOE Carbine Stock ODG - MAG400-ODG
Magpul Industries
Now: $42.70Was: $44.95The MOE Stock - Mil-Spec Model (Magpul Original Equipment) is a drop-in replacement buttstock for AR15/M16 carbines using mil-spec sized receiver extension tubes. Designed for light, fast action the...Now: $42.70Was: $44.95 -
Out of stockOn Sale
Magpul - MOE M-Lok Handguard - MAG424-BLK
Magpul Industries
Now: $35.10Was: $36.95The Magpul MOE M-LOK Hand Guard (Magpul Original Equipment) for AR15/M4 firearms with carbine-length gas systems combines the light weight of a standard hand guard with modular flexibility. Designed...Now: $35.10Was: $36.95 -
Out of stockOn Sale
Magpul - MOE M-Lok Forend Remington 870 - MAG496-BLK
Magpul Industries
Now: $28.45Was: $29.95The MOE M-LOK Forend is a drop-in replacement for the standard Remington 870 12ga shotgun, featuring an extended length and front/rear hand stops for improved weapon manipulation. Now updated with...Now: $28.45Was: $29.95 -
Out of stockOn Sale
Magpul - MS4 Dual QD Sling - MAG518-BLK
Now: $66.45Was: $69.95Filling the same mission requirement as the standard MS3 Sling, the MS4 can quickly switch between one-point and two-point configuration. The MS4 maintains material construction and specifications...Now: $66.45Was: $69.95 -
Out of stockOn Sale
Magpul - MS1 Single Point QD Adapter - MAG517-GRY
Magpul Industries
Now: $19.00Was: $20.95Combine with the MS1 Sling and Paraclip to provide two to one-point convertibility. Manganese-phosphate finished steel and reinforced polymer hardware with custom snag-free high durability 1-1/4"...Now: $19.00Was: $20.95 -
Out of stockOn Sale
Magpul - MS3 Sling - MAG514-BLK
Magpul Industries
Now: $47.45Was: $49.95Driven by the operational experience of Magpul instructors, the MS3 Multi-Mission Sling System was designed to give a versatile weapon-retention solution for a multitude of tactical environments and...Now: $47.45Was: $49.95 -
Out of stockOn Sale
Magpul - PMAG M3 .223/5.56 10rd. AR15 Magazine - MAG559-BLK
Magpul Industries
Now: $14.20Was: $14.95The PMAG 10 AR/M4 GEN M3 is a 10-round 5.56x45 NATO (.223 Remington) polymer magazine for AR15/M4 compatible weapons. Incorporating new material technology and manufacturing processes for enhanced...Now: $14.20Was: $14.95 -
Out of stockOn Sale
Magpul - PMAG 10 5.56 AC 10rd. Magazine - MAG1100-BLK
Magpul Industries
Now: $37.95Was: $39.95This is a new Magpul Industries PMAG 10 5.56 AC 10-round magazine. The PMAG 10 5.56 AC is a polymer 5.56x45 NATO (.223 Remington) magazine designed for short action Accuracy International Chassis...Now: $37.95Was: $39.95 -
Magpul - RVG Vertical Foregrip for Picatinny - MAG412-BLK
Magpul Industries
$23.70The Magpul RVG Rail Vertical Grip for Picatinny (MAG412-BLK) is Magpul's compact vertical foregrip designed for MIL-STD-1913 Picatinny rail handguards. The RVG (Rail Vertical Grip) provides a...$23.70 -
Out of stockOn Sale
Magpul - MBUS Pro Front Flip Up Sights - MAG275-BLK
Magpul Industries
Now: $90.20Was: $94.95The MBUS Pro (Magpul(R) Back-Up Sight) is a corrosion resistant all-steel back-up sighting solution that delivers maximum functionality and strength with minimum bulk at a price that's even smaller...Now: $90.20Was: $94.95