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 SR-25 Charging Handle - 31046
Knights Armament Company
$150.00The KAC 7.62mm Charging Handle represents a significant advancement in providing users with ergonomic firearms and accessories. Its intermediate-sized latch pads are designed for easy access, allowing the charging handle to be operated using a pinch...$150.00 -
Out of stockOn Sale
Knight's Armament - 5.56 Shroud Suppressor 6" - Black - #118957-2
Knights Armament Company
MSRP: $236.25Now: $224.44Was: $236.25The KAC 6” Suppressor Shroud is engineered specifically for the CRS QDC 5.56 Suppressor. Suppressor shrouds offer multiple advantages, including reducing heat and IR signatures, minimizing mirage, and providing burn protection. The KAC Suppressor...MSRP: $236.25Now: $224.44Was: $236.25 -
Out of stockOn Sale
BT Atlas - M-LOK Rail - #BT73
BT Atlas
MSRP: $44.95Now: $34.95Was: $44.95The BT73 M-LOK® Rail is designed for use with all M-LOK compatible hand guards, forends and buttstocks. It has 3 usable slots for attaching any of our 1913 Picatinny rail mounted Atlas Bipods, Accu-Shot...MSRP: $44.95Now: $34.95Was: $44.95 -
Out of stockOn Sale
Benelli - M4 Telescoping Stock Assembly - #70085
Benelli
Now: $229.00Was: $269.00The Benelli M4 collapsible stock collapses to three positions, fully collapsed, mid position and fully extended depending on the specifications of the recoil tube installed on your shotgun. The Benelli M4 collapsible stock does not require tools, 60...Now: $229.00Was: $269.00 -
Out of stock
LaRue Tactical - AR10/AR15 Trigger - #LTMBT2SSB
LaRue Tactical
$134.99Just like the standard MBT-2S, it's CNC-machined out of solid S7 tool steel. The result of this extra effort is a glass-smooth, hyper-consistent trigger that will satisfy even the most scrupulous competition shooter, but also be overly rugged for the...$134.99 -
Proof Research - 24" .264 Bolt Action Rifle Barrel - 100912
Proof Research
$999.99The Proof Research 24" .264 Caliber Bolt Action Rifle Barrel (100912) is a premium carbon fiber barrel for bolt-action rifle builders seeking maximum velocity and match accuracy from 6.5mm cartridges including 6.5 Creedmoor, 6.5 PRC, and .264 Win Mag...$999.99 -
Out of stock
Proof Research - 24" 30 Caliber Carbon Fiber Blank Barrel- #101001
Proof Research
$999.00By designing a bolt action barrel blank, we have opened up countless options for chambering in your favorite caliber and having the ability to fit a large variety of actions. Our bolt-action barrels are available in a variety of calibers, lengths,...$999.00 -
Proof Research - 22" .264 Bolt Action Rifle Barrel - 105511
Proof Research
$999.99The Proof Research 22" .264 Caliber Bolt Action Rifle Barrel (105511) is a precision carbon fiber barrel for custom bolt-action rifle builds chambered in 6.5mm cartridges including 6.5 Creedmoor, 6.5 PRC, .260 Remington, and other .264-bore precision...$999.99 -
SB Tactical - SBA5 Pistol Stabilizing Brace - SBA5X01SB
SB Tactical
$124.99The SBA5 Pistol Stabilizing Brace is 5-position adjustable and designed for all platforms capable of accepting a mil-spec carbine receiver extension. Featuring an integral, ambidextrous QD sling socket and an arm cuff based on the original SB15, the...$124.99 -
Proof Research - 24" .284 Bolt Action Rifle Barrel - 100943
Proof Research
$999.99The Proof Research 24" .284 Caliber Bolt Action Rifle Barrel (100943) is a match-grade, carbon fiber wrapped precision barrel designed for custom bolt-action rifle builds in .284 Winchester, 7mm-08 Remington, and other .284-bore cartridges. Proof...$999.99 -
Out of stock
Surefire - Used Mossberg 500/590 Forend Weapon Light - #623FA-USED-DR
Used
$325.00This is a used Surefire 623FA Shotgun Forend WeaponLight. Designed for Mossberg 500 and 590 Shotguns, this WeaponLight features an integral shock-isolated lamp assembly with a pressure sensitive momentary-on switch and an integral constant-on...$325.00 -
Out of stockOn Sale
LaRue - Pride Fowler Shielded Red Dot QD Mount - #LT624-USED-DR
Used
Now: $90.00Was: $100.00This is a used LaRue Tactical LT-624 Pride Fowler Shielded Red Dot QD Mount. This lower profile mount sets the MRD lower on the rail and does not have the flip-up rear sight.Now: $90.00Was: $100.00