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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On Sale
Unity Tactical Fast red dot riser. Elevates absolute co-witness to 2.26" Direct to Picatinny
Unity Tactical
MSRP: $105.00Now: $95.00Was: $105.00The Unity Tactical FAST Riser elevates absolute co-witness mounted red dots to 2.26" optical height (FST-ORAB) — designed for red dot sights mounted in absolute co-witness height rings/mounts that need to be raised to the Unity 2.26" FAST height standard...MSRP: $105.00Now: $95.00Was: $105.00 -
Proof Research 20" 6.5 Creedmoor Carbon Fiber Barrel
Proof Research
$1,250.00The Proof Research 20" 6.5 Creedmoor Carbon Fiber Barrel (100042) represents the pinnacle of precision barrel technology, combining an aerospace-grade carbon fiber wrap over a 416R stainless steel core using Proof Research's patented manufacturing...$1,250.00 -
Out of stock
Volquartsen - Ruger MK Series Competition Bolt - VC4BT-B
Volquartsen
$288.00Are you a competitive shooter looking to eliminate stovepipes, failures to fire and improve the overall performance of your Ruger MKII, MKIII, or MK IV pistol? The Competition Bolt is the answer! CNC-machined and ground for superior fit and...$288.00 -
Volquartsen - TG2000 Ruger 10/22 drop in trigger - VCTP-1-B-10
Volquartsen
MSRP: $296.00$279.00The Volquartsen TG2000 Ruger 10/22 Drop-In Trigger Group (VCTP-1-B-10) is Volquartsen's legendary drop-in trigger group for Ruger 10/22 rifles. The TG2000 is widely considered the finest aftermarket trigger upgrade for the 10/22 — transforming the...MSRP: $296.00$279.00 -
Out of stock
Volquartsen - Lightweight Barrel for the Ruger 10/22 Charger - VF6-T
Volquartsen
MSRP: $368.00$355.00When you're going all out with a custom 22 Charger build, our VF-6 Barrel is the perfect complement for your aftermarket, stubby barrel chassis. Available in 6" & 9". Specs Note: this barrel is not intended for use with the factory 22 Charger...MSRP: $368.00$355.00 -
On Sale
Magpul - PMAG D-50 9mm 50rd. Drum Magazine HK94/MP5 - MAG1181-BLK
Magpul Industries
MSRP: $124.95Now: $118.70Was: $124.95The Magpul PMAG D-50 9mm 50-Round Drum Magazine for HK94/MP5 (MAG1181-BLK) is Magpul's 50-round polymer drum magazine designed specifically for HK94, MP5, and MP5-compatible firearms using the HK-style double-feed magazine well. The PMAG D-50 for HK/MP5...MSRP: $124.95Now: $118.70Was: $124.95 -
LMT Defense - 7.62x51mm 16" LW Chrome Lined MWS Barrel Assembly - R-LM308B116
LMT Defense
MSRP: $784.00$727.20The LMT Defense 7.62×51mm 16" LW Chrome Lined MWS Barrel Assembly (R-LM308B116) is the lightweight version of LMT's standard 16" .308 MWS barrel, engineered to reduce overall rifle weight without sacrificing durability or performance. The lightweight...MSRP: $784.00$727.20 -
AirTronic USA - MIL-SPEC Carbine Length M203 Handguard/Heatshield
AirTronic USA
$70.00This is a new AirTronic USA, mil-spec, carbine length, M203 handguard/heatshield. The internal is formed to conform to the contour of the barrel of an M16 rifle and the external is formed to a special shape. This item is new without a box. These...$70.00 -
Forward Controls Design - 3 Prong Flash Suppressor - FCD-3P15
Forward Controls Design, Inc
MSRP: $90.00$85.50The Forward Controls Design 3-Prong Flash Suppressor / Plan B Mount (FCD-3P15) is a multi-functional muzzle device designed in collaboration with Revival Defense — functioning as both a standalone 3-prong flash hider and a Plan B/Atlas compatible...MSRP: $90.00$85.50 -
iRayUSA - RICO MICRO PICTAIL Helmet/Weapon Shoe AC52
iRayUSA
$129.00The PICTAIL mounting system is the combination of a standard dovetail shoe commonly used on helmet mountable night vision optics and the MIL-STD-1913 picatinny rail used on weapons platforms. The synergy of these two mounting formats creates a system...$129.00 -
iRayUSA - RICO MICRO MQD Mount AC36
iRayUSA
$199.00iRayUSA partnered with American Defense Manufacturing to produce the PICTAIL and MQD delivering ADM's gold standard picatinny mounting solution with an innovative lighter and faster dovetail design for faster helmet transitions. The PICTAIL mounting...$199.00 -
Out of stock
iRayUSA - RICO MICRO 640 12 Micron 25mm Multi-Purpose Monocular #RH25
iRayUSA
$3,999.00The RICO MICRO Series is an advanced electro-optic device miniaturized to deliver remarkably versatile functionality: Handheld, helmet mount, weapon mount, and clip-on. Weighing less than a pound, the MICRO will fit in the palm of your hand and can be...$3,999.00