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
Sig Sauer - Tango MSR Rifle Scope - #SOTM11202
Sig Sauer
Now: $699.99Was: $879.99Introducing the TANGO-MSR line of riflescopes in Coyote Tan by Sig Sauer. Featuring industry leading light transmission and optical clarity low power variable optics loaded with standard features...Now: $699.99Was: $879.99 -
Out of stockOn Sale
Sig Sauer - TANGO6T Rifle Scope 1-6X24mm - #SOT61DVO
Sig Sauer
Now: $2,199.99Was: $2,859.99Selected by the U.S. Army for both the Squad Designated Marksman Rifle System and for U.S. Special Forces, the TANGO6T is available in the commercial market. Designed for today's common MSR/AR and...Now: $2,199.99Was: $2,859.99 -
Out of stock
Sig Sauer - Tango MSR 1-6X24 Rifle Scope - #SOTM61200
Sig Sauer
$429.99Introducing the TANGO-MSR line of riflescopes in Coyote Tan by Sig Sauer. Featuring industry leading light transmission and optical clarity low power variable optics loaded with standard features...$429.99 -
Out of stockOn Sale
Magpul - PMAG30 M3 windowed 5.56NATO 30 round magazine - #MAG556-MCT
Magpul Industries
Now: $17.05Was: $17.95The next-generation PMAG 30 AR/M4 GEN M3 Window is a 30-round 5.56x45 NATO (.223 Remington) polymer magazine for AR15/M4 compatible weapons that features transparent windows to allow rapid visual...Now: $17.05Was: $17.95 -
Out of stockOn Sale
Magpul - M3 300 Blackout 30 Round Magazine - #MAG800-BLK
Magpul Industries
Now: $15.15Was: $15.95The PMAG 30 AR 300 B GEN M3 is a purpose-designed magazine for rifles chambered in 300 Blackout. Since its inception, 300 Blackout shooters have had to use a magazine designed for another...Now: $15.15Was: $15.95 -
Out of stock
Sig Sauer - X-change kit P320 to M17 9mm - 8900268
Sig Sauer
$549.99This kit converts a P320 to a non-manual safety version of the renowned M18. This M17 conversion kit comes in the 3.9" configuration with 1 17 round magazine and 2 21 round magazines. UPC<$549.99 -
Out of stock
Spuhr - 35mm Cantilever Mount 20 MOA 1.5" - SP-5616
Spuhr
$450.00Absolute co-witness most clip-on NV units on AR platforms. Allows the scope to be mounted 40 mm/1.57” farther forward than with a non-cantilever mount.6 MIL/20.6 MOAHeight: 38 mm/1.5”Length: 150 mm/5...$450.00 -
Out of stock
Spuhr - Scope Mount 34 H38mm/1.5" 6 Mil Quick Detach - QDP-4602
Spuhr
$495.00Quick detachable mount featuring side clamp and dual levers on the left side of the mount, with tensioning screws on opposite side of the mount body.Height: 38 mm/1.5”Length: 121 mm/4.76” (mount body...$495.00 -
Out of stock
$410.00 -
Out of stock
Spuhr - Picatinny Rail 55mm - A-0002
Spuhr
$62.50Picatinny rail for attaching accessories to our forends (1 pcs included with all forends). Height: 8 mm/0.315" Length: 55 mm/2.16" Weight: 15 g/0.5 oz Screws: Tx20 M4x8 (included) Note: Not for...$62.50 -
Out of stock
Spuhr - 34mm Cantilever Scope Mount 6 MIL/20.6 MOA Quick Detach - #QDP-4616
Spuhr
$600.00Quick detachable cantilever mount featuring side clamp and dual levers on the left side of the mount, with tensioning screws on opposite side of the mount body. Absolute co-witness most clip-on NV...$600.00 -
Out of stock
Spuhr - RAPTAR Adapter High - A-0029B
Spuhr
$92.00Interface for attaching Wilcox RAPTAR, RAPTAR-S (Gen2,) RAPTAR Lite ES or SilencerCo RADIUS laser range finder to ISMS scope mount or spotting scope ring. Includes screws. Height: 35 mm/1.38”...$92.00