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 stock
Canik - 9mm 18 Round Magazine - #MA548
Canik
$34.99Canik's TP9 series magazine are a standard factory replacement magazine. With durable steel construction, the TP9 magazines ensure flawless function and long-term reliability in your firearm. Fits...$34.99 -
Out of stock
Canik - 9mm 20Round Magazine - #MA550
Canik
$39.99Canik's TP9 series magazines are a standard factory replacement magazine. With durable steel construction, the TP9 magazines ensure flawless function and long-term reliability in your firearm. Fits...$39.99 -
Out of stock
Troy - Gas Block .875" Black - #SGAS-875-00BT-00
Troy
$45.00Troy's .875 Low Profile Gas Block is made specifically for bull barrel rifles that have a 0.875 gas block seat. Machined from 4140 pre-hardened steel finished with MIL-STD Manganese Phosphate. Gas...$45.00 -
Out of stockOn Sale
Ergo - .750 Low-Pro Adjustable Gas Block - #4822
Ergo Grip
Now: $43.25Was: $51.99The Ergo 4822 .750 Adjustable Gas Block is designed to fit under the Ergo Modular and SuperLite™ Rail System, as well as most other manufacturer’s free float handguards. Adjustments are made via a...Now: $43.25Was: $51.99 -
Out of stock
EOTech - EXPS3 Holographic Sight Red 68 MOA Ring - EXPS3-4
EOTech
$815.00The E is for Extreme. The EXPS3 offers true 2-eyes-open shooting and a 7 mm raised base that still allows for iron sight access. It features easy-to-adjust side buttons and an adjustable, locking,...$815.00 -
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 -
Out of stock
EOTech - Tactical Holographic 8MOA Ring - XPS2-2TAN
EOTech
$649.00The XPS2 is the shortest, smallest and lightest EOTech model holographic weapon sight available without night vision. Its size and weight make it convenient for hunters and law enforcement officers...$649.00 -
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 -
Out of stock
EOTech - XPS2 Holographic Sight Red 68 MOA Ring - XPS2-300
EOTech
$655.00The XPS2 is the shortest, smallest and lightest EOTech model holographic weapon sight available without night vision. Its size and weight make it convenient for hunters and law enforcement officers...$655.00 -
Out of stock
EOTech - G33 Magnifier 3X No Mount Tan - G33.NMTAN
EOTech
$529.00The G33 Magnifier is the selected magnifier of USSOCOM, and is compact and lightweight. The optic offers tool-free vertical and horizontal adjustments, larger field-of-view and an adjustable...$529.00 -
Out of stock
EOTech - G45 Magnifier 5X QD MountSwitch to Side - G45.STS
EOTech
$715.00Regardless of the scenario, the Rotech magnifier provides an unparalleled advantage when transitioning from short-range to long-range shooting. 5x Magni$715.00 -
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