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.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
On Sale
Aimpoint - TwistMount Ring & Base - 12234
Aimpoint
Now: $235.00Was: $261.00TwistMount Ring & Base: Complete Quick Release Mount for all Aimpoint® magnifiers and CEU. Fits on Picatinny rail (MIL-STD 1913). Screws and Allen key included. This Aimpoint Red Dot Sight Accessory is made by precision, anodized...Now: $235.00Was: $261.00 -
Out of stockOn Sale
Surefire - Replacement Rear Cap Assembly M6XX Scoutlight Series - #UE-SR07-BK
Surefire
Now: $143.00Was: $159.00Surefire, Replacement Rear Cap Assembly, Fits M6XX Scoutlight Series, Includes SR07 Rail Mount Tape Switch, Black Finish Surefire replacement rear cap assembly for Scoutlight series with included rail mount tape switch. Tail cap and rail mount...Now: $143.00Was: $159.00 -
Spuhr - 34mm Cantilever Mount 6 MIL - 1.18" Gen 3 - SP-4601C
Spuhr
$500.00Spuhr SP-4601C: 34mm Cantilever Mount 6 MIL - 1.18" 6 MIL/20,6 MOAHeight: 30 mm/1.18”Clearance: 8 mm/.314" (from the bottom of the tube to bridge of the mount body)Length: 120 mm/4.72” (body)/130 mm/5.12" (total)Weight: 227 g/8.0 oz 10-Degree...$500.00 -
On Sale
Surefire - 4-Prong Flash Hider - 5.56mm - 1/2x28mm - FH556RC-1/2-28
Surefire
MSRP: $199.00Now: $179.00Was: $199.00The SureFire 4-Prong Flash Hider — 5.56mm 1/2x28 (FH556RC-1/2-28) is SureFire's aggressive 4-prong flash hider for 5.56mm rifles, designed to provide extremely effective flash reduction while doubling as an optional support point and CQB tool. The...MSRP: $199.00Now: $179.00Was: $199.00 -
AB Suppressor - Raptor Muzzle Thread Adapter - TA-1/2-28
AB Suppressor
$26.00The AB Suppressor Raptor Muzzle Thread Adapter with 1/2-28 threads (TA-1/2-28) converts your Raptor series suppressor to a 1/2-28 thread pitch, enabling use on 5.56/.223 AR-15s and other platforms with 1/2-28 threaded muzzles. This thread adapter enables...$26.00 -
On Sale
Magpul - Adjustable AR15 CTR Stock - MAG310-BLK
Magpul Industries
MSRP: $64.95Now: $61.70Was: $64.95The Magpul CTR Adjustable Carbine Stock — Black (MAG310-BLK) is Magpul's improved mil-spec 6-position carbine stock for AR-15/M4 rifles. The CTR (Compact/Type Restricted) features Magpul's friction-lock mechanism that eliminates the "rattle" common to...MSRP: $64.95Now: $61.70Was: $64.95 -
Out of stock
Surefire M340C Scout Pro LED 500 Lumen Flashlight - #M340C-BK-PRO
Surefire
MSRP: $369.00$341.00SureFire makes some of the finest Suppressors, Flashlights, Weaponlights; Lasers, Ear Protection; Firearm Components, and Tactical equipment on the market today. The Mini Scout Light Pro is mighty in stature yet minimal in structure. It feeds off a...MSRP: $369.00$341.00 -
Knights Armament Company 7.62MM SR-25A2 20" Upper Receiver Kit 121471
Knights Armament Company
$3,283.20The Knights Armament SR-25A2 20" Upper Receiver Kit brings genuine military heritage to the civilian AR-10 platform. As the commercial counterpart to the M110A2 — the U.S. military's semi-automatic sniper system — this upper receiver kit is...$3,283.20 -
Volquartsen Competition Bolt 2.0 for 10/22 VF10BLT
Volquartsen
$270.00Upgrade your Ruger 10/22 with the Volquartsen Complete CNC-Machined Bolt, precision-engineered for match-grade accuracy and reliability. This premium 10/22 bolt features a hardened, tuned extractor for consistent extraction, a round titanium firing pin...$270.00 -
Proof Research AR-Style Barrel 308 Win. 16" 1:10" Twist 5/8-24 Carbon Fiber Wrapped 101261
Proof Research
MSRP: $1,149.00$999.00Upgrade your AR-10 platform with the pinnacle of barrel technology: the Proof Research AR-Style .308 Winchester 16" Carbon Fiber Barrel (Part 101261). Designed for tactical shooters, hunters, and precision competitors who refuse to compromise, this...MSRP: $1,149.00$999.00 -
J P Enterprises AR15 6.5 Grendel/ 6mm ARC Complete Bolt Assembly JPBC-EB6.5G
JP Enterprises
$155.75The JP Enterprises AR-15 6.5 Grendel / 6mm ARC Complete Bolt Assembly Enhanced (JPBC-EB6.5G) is a precision-machined, enhanced bolt assembly built from SAE 9310 nickel-chromium-molybdenum steel — the same high-strength alloy used in Formula 1...$155.75 -
Proof Research CZ 455/457 .22LR 18.5" Threaded Barrel 121443
Proof Research
$825.00The Proof Research .22 LR 18.5” Threaded Barrel (121443) brings Proof Research’s legendary aerospace-grade carbon fiber barrel construction to the .22 LR rimfire platform. This prefit carbon fiber barrel features a precision stainless steel...$825.00