Parts & Accessories
Shop AR-15 and AR-10 parts and accessories from Boss Firearms. Our parts inventory includes LMT upper and lower receivers, Proof Research carbon fiber barrels, Forward Controls Design components, Geissele triggers, Magpul furniture, BCM parts, SureFire lights, and much more. Whether you're building a new rifle or upgrading your current setup, we carry the hard-to-find components trusted by military, law enforcement, and serious civilian shooters.
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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 M-LOK slots for compatibility with all M-LOK accessories,...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 identical to that of the standard MS3, but instead of...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" webbing. Made in U.S.A. Heavy-duty, push-button QD Sling...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 missions. As a standalone product, the...Now: $47.45Was: $49.95 -
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 compact, lightweight grip option that gives the shooter 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 than its size. The dual aperture, windage adjustable...Now: $90.20Was: $94.95 -
Out of stockOn Sale
Magpul - Adjustable CTR Stock - MAG310-FDE
Magpul Industries
Now: $61.70Was: $64.95The Magpul CTR (Compact/Type Restricted) - Mil-Spec Model is a drop-in replacement buttstock for AR15/M16 carbines using mil-spec sized receiver extension tubes. Designed for light, fast action the streamlined A-frame profile avoids snagging and shields...Now: $61.70Was: $64.95 -
Out of stockOn Sale
Magpul - M-LOK QD Sling Mount - MAG606-BLK
Magpul Industries
Now: $18.95Was: $19.95The M-LOK QD Sling Mount provides a forward attachment point for the Magpul MS4 Sling and other push-button QD slings. Machined from Mil-Spec anodized aluminum, the low-profile M-LOK QD Sling Mount features beveled edges to reduce snagging and has an...Now: $18.95Was: $19.95 -
Out of stockOn Sale
Magpul - QD Ambidextrous Sling Attachment Point - MAG529-BLK
Magpul Industries
Now: $28.45Was: $29.95The ASAP QD (Ambidextrous Sling Attachment Point QD) allows a wide range of motion, enabling true ambidextrous weapon manipulation for both left and right handed shooters. Replacing the standard AR15/M4 carbine stock receiver end plate, the ASAP QD...Now: $28.45Was: $29.95 -
Out of stockOn Sale
Magpul - MOE K-2 AK Grip - MAG683-BLK
Magpul Industries
Now: $19.90Was: $20.95Similar to the MOE SL, the MOE-K2 AK Grip is a drop-in upgrade for AK47/AK74 platforms that offers a more vertical grip angle, but in a full-size grip design. The steeper vertical grip angle improves comfort and control on these shorter LOP rifles that...Now: $19.90Was: $20.95 -
Out of stock
Magpul - MS1 Sling - MAG513-BLK
Magpul Industries
$29.71The MS1 Sling is the most versatile addition to the Magpul line of rifle slings. This sling system starts as an optimized, dedicated two-point sling that serves equally well in a one-point role when using optional adapters. Built around our MS1 slider,...$29.71 -
Out of stock
CMMG - AR-15 Lower Parts Kit w/ Ambidextrous Selector - 55CA6B8
CMMG
$74.95Complete kit contains every internal part needed to complete or rebuild an AR lower receiver. High-quality components are designed to work in coordination with each other to ensure smooth operation, and they come packaged in color-coded bags that...$74.95