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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Spuhr - 34mm Cantilever Mount 0 MIL - 1.89" Gen3 - SP-4024C
Spuhr
$500.00Specifications: Tilt: 0 Mil/0 MOA Height: 48mm(1.89in) Length: 140mm(5.51in) Extended high cantilever m$500.00 -
On Sale
Magpul - TMAG AR/M4 Gen 3 5.56 30/round ODT - MAG1417ODT
Magpul Industries
Now: $22.75Was: $23.95The Magpul TMAG AR/M4 GEN 3 5.56mm 30-Round Magazine — ODT (MAG1417ODT) is Magpul's third-generation transparent magazine for AR-15/M4 rifles, featuring a translucent ODT (Olive Drab Translucent)...Now: $22.75Was: $23.95 -
On Sale
B5 Systems - Bravo Stock Assembly Milspec Black Multicam - BRV-1421
B5 Systems
Now: $84.55Was: $89.00The B5 Systems Bravo Stock Assembly for AR Milspec buffer tubes in Black Multicam (BRV-1421) combines the enhanced ergonomics of the B5 Bravo stock with a tactical Multicam-patterned polymer finish...Now: $84.55Was: $89.00 -
On Sale
Aimpoint - Patrol Rifle Optic (PRO™) Red Dot Reflex Sight - QRP2 Mount - 12841
Aimpoint
Now: $497.00Was: $552.00The Aimpoint® Patrol Rifle Optic (PRO) is built to withstand the toughest conditions encountered by law enforcement officers. This rugged and reliable red dot sight is designed to enhance target...Now: $497.00Was: $552.00 -
Aimpoint - Duty RDS Red Dot Reflex Sight 2 MOA 39mm - 200759
Aimpoint
$499.00Introducing the Aimpoint Duty RDS Red Dot Sight – the ultimate solution for law enforcement professionals. With a brilliant 2 MOA red dot, waterproof flush-mounted adjustments, and a long-lasting...$499.00 -
EOTech - Magnifier 3X QD Mount Switch to Side - G33.STS
EOTech
$645.00The EOTech G33 3x Magnifier with Switch-to-Side (STS) Quick Detach Mount (G33.STS) pairs EOTech's popular 3x magnifier with an integrated STS mount for instant, one-hand flip to the side when...$645.00 -
EOTech - G45 Magnifier 5X - G45.NM
EOTech
$599.00The EOTech G45 5x Magnifier (G45.NM) provides outstanding 5x magnification for use with EOTech holographic weapon sights, red dot sights, and reflex optics. The G45 significantly extends the...$599.00 -
EOTech - G33 Magnifier 3X No Mount Matte Finish - G33.NM
EOTech
$529.00The EOTech G33 3x Magnifier (G33.NM) enhances your EOTech holographic or red dot sight by providing 3x magnification for intermediate to long-range target identification and engagement. The G33 is...$529.00 -
EOTech - 518 Holographic Sight Red 68MOA Ring with 1-MOA Dot Reticle - 518.A65
EOTech
$645.00The EOTech 518 Holographic Weapon Sight (518.A65) delivers EOTech's iconic 68 MOA ring with 1 MOA center dot reticle in a full-size HWS package with side-button battery access for AR-15, M16, and...$645.00 -
Spuhr - 34mm Picatinny Mount 20.6 MOA - 1.5" - SP-4602CM
Spuhr
$515.00Durability: Prevents damage on scope due to flexing during heavy recoil or rough environment. The snipers rifle and the spotters carbine can have the same mount, enabling the use of same equipment...$515.00 -
Knights Armament - Universal Bridge - 111793
Knights Armament Company
$968.81The Knight's Armament Universal Bridge (KAC PN: 111793) is KAC's low-profile Picatinny rail accessory bridge for mounting a secondary device over a KAC RAS or URX handguard. The Universal Bridge...$968.81 -
Magpul - MBUS Back-Up Front Sight Gen 2 - MAG247-BLK
Magpul Industries
$37.95The Magpul MBUS Back-Up Front Sight GEN 2 (MAG247-BLK) is Magpul's GEN 2 polymer flip-up front backup iron sight for AR-15/M4 rifles. The MBUS (Magpul Back-Up Sight) Gen 2 Front features a...$37.95