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
Knight's Armament - Like New 5.56 QDC 3-Prong Flash Suppressor Kit - 1/2"-28 TPI - 30555-Like-New
Knights Armament Company
$89.00These are in like-new condition, they were new rifle takeoffs. The KAC 3-Prong Flash Eliminator is an extremely effective flash suppressor design that also serves as a platform for attaching a...$89.00 -
Out of stock
Knight's Armament - DOD Surplus M16 M5 RAS Forend Assembly w/ No Rib Rail Panels - #98065-1-DOD
Knights Armament Company
$400.00DOD Surplus Stock KAC M5 RAS (Rail Adapter System) was developed for use on the US military's M16A4, and with hundreds of thousands of rails issued to date, it is one of the most battle proven...$400.00 -
On Sale
Aimpoint - ACRO S-2™ 9 MOA - Red Dot Reflex Sight w/ Integrated Shotgun Rib Mount - 200907
Aimpoint
Now: $755.00Was: $839.00The Aimpoint ACRO S-2™ 9 MOA Red Dot Reflex Sight (Model 200907) is Aimpoint's dedicated shotgun red dot sight, purpose-built for mounting on ventilated shotgun ribs. Based on the proven Acro 2nd...Now: $755.00Was: $839.00 -
Trijicon - ACOG 1.5X16mm Dual Illuminated Green Ring & 2 MOA Dot - TA44-C-400329
Trijicon
$1,357.00The Trijicon 1.5x16S Compact ACOG® Scope (Model TA44-C-400329) is the ultimate compact riflescope for close-quarters combat, tactical teams, and speed-oriented competition. The ACOG (Advanced Combat...$1,357.00 -
Out of stock
Trijicon - ACOG® 6x48 BAC Riflescope .50 BMG - #TA648-50
Trijicon
$3,230.00The military’s need for a magnified, self-luminous tactical sight that enhances target identification and increases hit probability on extended-range shots has given rise to the new Trijicon ACOG®...$3,230.00 -
Out of stock
Trijicon - 3x30 Compact ACOG® Scope .223 / 69gr. - #TA33-C-400368
Trijicon
$1,476.00Designed specifically for law enforcement and military applications, the Trijicon ACOG® 3x30 (Advanced Combat Optical Gunsight) riflescope offers the right combination of ample magnification, low...$1,476.00 -
Out of stock
Knight's Armament - DOD Surplus M16 M5 RAS Forend Assembly - #98065-DOD
Knights Armament Company
$400.00DOD Surplus Stock KAC M5 RAS (Rail Adapter System) was developed for use on the US military's M16A4, and with hundreds of thousands of rails issued to date, it is one of the most battle proven...$400.00 -
Out of stockOn Sale
EOTech - Micro 2 Power Magnifier Q/QD STS Mount Black - #EOTG43.STS
EOTech
MSRP: $649.00Now: $538.53Was: $649.00The G43 Magnifier is a miniaturized version of our battle-tested G33 Magnifier, making it one of the most compact and lightweight magnifiers available. The mount provides fast transitioning from 3X...MSRP: $649.00Now: $538.53Was: $649.00 -
Out of stockOn Sale
LMT Defense - DMR Buttstock - #DMR308
LMT Defense
Now: $391.50Was: $403.65Designated Marksman Rifle buttstock. Designed for .308 caliber rifles with carbine extension tubes. The DMR stock has comb height and length of pull adjustments for fine tuning of the shooter...Now: $391.50Was: $403.65 -
Magpul - Angled Foregrip for Picatinny - MAG411-BLK
Magpul Industries
$33.20The Magpul Angled Foregrip for Picatinny Rail (MAG411-BLK) is Magpul's original angled foregrip (AFG) for MIL-STD-1913 Picatinny rail handguards. The Magpul AFG places the support hand in a natural,...$33.20 -
Magpul - MBUS Back-Up Rear Sight Gen 2 - MAG248-BLK
Magpul Industries
$55.05The Magpul MBUS Back-Up Rear Sight GEN 2 (MAG248-BLK) is Magpul's second-generation polymer flip-up rear backup iron sight for AR-15/M4 rifles. The MBUS Gen 2 Rear features a spring-loaded,...$55.05 -
Out of stock
Spuhr - 34mm Cantilever Mount 0 MOA - 1.26" Gen3 - #SP-4026C
Spuhr
$475.00"The Noveske Shooting Team mount"$475.00