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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Sig Sauer - Polymer 9mm Magazine for MPX - 35 Rounds - 8901025
Sig Sauer
$49.99The Sig Sauer MPX 9mm 35-Round Polymer Magazine (8901025) is a factory-original, high-capacity magazine for the Sig Sauer MPX pistol-caliber carbine and pistol system. This 35-round polymer magazine...$49.99 -
On Sale
Magpul Enhanced Trigger Guard Fits AR-15 Drop In Aluminum, Black MAG015-BLK
Magpul Industries
Now: $21.80Was: $22.95The Magpul Enhanced Trigger Guard — Aluminum, Drop-In (MAG015-BLK) is Magpul's billet aluminum enhanced trigger guard for AR-15/M4 pattern lower receivers. The Magpul Enhanced Trigger Guard replaces...Now: $21.80Was: $22.95 -
Radian Weapons - Raptor Ambidextrous AR15 Charging Handle - R0001
Radian Weapons
$104.95The Raptor™ is truly revolutionary in design & function. From rapid palm “blading” or finger thumb charges of the weapon, the motion is fluid & fast from either strong or support side. Made in the...$104.95 -
On Sale
B5 Systems Type 22/Type23 P Grip Plug - Coyote Brown GRP-1459
B5 Systems
Now: $9.98Was: $10.50The B5 Systems Type 22/Type 23 P Grip Plug in Coyote Brown (GRP-1459) is a precision-molded polymer plug designed to fill the storage cavity in B5 Systems' Type 22 and Type 23 P-Grip pistol grips...Now: $9.98Was: $10.50 -
Forward Controls Design - Billet 7075 Ejection Port Cover - FCD-EPC
Forward Controls Design, Inc
MSRP: $50.00$47.50The Forward Controls Design Billet 7075 Ejection Port Cover (FCD-EPC) is a precision-machined billet aluminum replacement for the standard stamped steel AR-15 ejection port dust cover. FCD machines...MSRP: $50.00$47.50 -
Forward Controls Design - Aimpoint Acro Glock Optics Platform - OPF-G-ACRO
Forward Controls Design, Inc
MSRP: $80.00$76.00The Forward Controls Design Aimpoint ACRO Glock Optics Platform (OPF-G-ACRO) is FCD's precision-machined optic mounting plate for the Aimpoint ACRO P-1/P-2 red dot sight on Glock pistols (full-size...MSRP: $80.00$76.00 -
On Sale
Magpul MOE+ Grip for AR rifles with storage compartment MAG416-BLK
Magpul Industries
MSRP: $24.95Now: $23.70Was: $24.95The Magpul MOE+ Grip for AR Rifles with Storage (MAG416-BLK) is Magpul's enhanced version of the MOE pistol grip, featuring Magpul's proprietary overmolded rubber panels on the front and back straps...MSRP: $24.95Now: $23.70Was: $24.95 -
ProMag, Magazine, Fits Canik TP9, 9MM, 32 Rounds, Steel, Blued Finish CAN-A3
ProMag
$34.99ProMag magazines are made in the USA and backed by a lifetime guarantee against manufacturer's defects. Magazine springs are precision wound using heat-treated chrome silicon wire and each and...$34.99 -
On Sale
Unity Tactical fast red dot riser elevates lower 1/3 mount to 2.26" optical height
Unity Tactical
MSRP: $105.00Now: $95.00Was: $105.00The Unity Tactical FAST Red Dot Riser (FST-ORB) in Black elevates lower 1/3 co-witness mounted red dots and optics to 2.26" optical height. Designed for optics currently mounted at lower 1/3...MSRP: $105.00Now: $95.00Was: $105.00 -
On Sale
Unity Tactical - FAST Red Dot Riser Absolute Cowitness to 2.26" - FST-ORAF
Unity Tactical
Now: $95.00Was: $105.00The Unity Tactical FAST Red Dot Riser in FDE/Tan elevates absolute co-witness optics to 2.26" optical height (FST-ORAF), providing the same FAST riser functionality as the black version in a Flat...Now: $95.00Was: $105.00 -
Knight's Armament - JAMR - 111789
Knights Armament Company
$455.99The Knight's Armament JAMR (KAC PN: 111789) is KAC's Joint Assault Machine gun Rail — an accessory rail system designed for use with the M249 SAW (Squad Automatic Weapon) and other crew-served light...$455.99 -
On Sale
Sons of Liberty Gun Works - Blaster Guts Lower Parts Kit - BG-LT
Sons of Liberty Gunworks
MSRP: $120.00Now: $110.00Was: $120.00Lower Parts Kit made from only the highest quality Mil-Spec or better components. The SOLGW Bolt Catch and Safety Selector are a Mil-Spec AISI8620 investment casting per the USGI TDP. Their Safety...MSRP: $120.00Now: $110.00Was: $120.00