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
Glock .45ACP OEM Complete Slides
Glock
$372.75Glock45ACP OEM Complete Slides *Photos are of some of the slides we are selling but are otherwise generic.$372.75 -
Out of stockOn Sale
Magpul - PMAG M3 .223/5.56 10rd. AR15 Magazine - MAG559-BLK
Magpul Industries
Now: $14.20Was: $14.95The PMAG 10 AR/M4 GEN M3 is a 10-round 5.56x45 NATO (.223 Remington) polymer magazine for AR15/M4 compatible weapons. Incorporating new material technology and manufacturing processes for enhanced strength, durability, and reliability, the PMAG 10...Now: $14.20Was: $14.95 -
Out of stock
BT Atlas 5-H Atlas Bipod - BT35-LW17
BT Atlas
MSRP: $504.95$429.21Since B&T Industries introduced the Atlas Bipod in 2006, the shooting community found a usefulness in its patented, novel features. We began receiving requests for a “bigger,” “heavier,” “stouter” bipod with the...MSRP: $504.95$429.21 -
Out of stockOn Sale
BT Atlas - PSR Atlas Bipod Tall No Clamp - BF-BT47-NC
BT Atlas
Now: $263.46Was: $309.95The BT47-NC PSR (Precision Sniper Rifle) Atlas Bipod “No Clamp” model has a two hole pattern of 1.100” with the holes being 10/32 threads. It requires any 17S size lever style mount to include the ADM-170-S, ARMS 17S, TRAMP from...Now: $263.46Was: $309.95 -
LMT Defense - 16" .308 Lightweight Chrome Lined Piston Barrel - R-LM308B116PS
LMT Defense
MSRP: $936.00$868.05The LMT Defense 16" .308 Lightweight Chrome Lined Piston Barrel (R-LM308B116PS) is LMT's 7.62x51mm NATO piston-operated MRP-H barrel assembly, combining a lightweight chrome-lined bore with LMT's proven short-stroke piston operating system for enhanced...MSRP: $936.00$868.05 -
Out of stockOn Sale
Forward Controls Design - Quad Rail 6.7" - #RHF-6.7
Forward Controls Design, Inc
Now: $166.25Was: $175.00RHF (Railed Handguard, Forward Controls) is based on the superb CMT UHPR Mod2, with full length 1913 rails at 12 o'clock, and MLOK at 3, 6, and 9 o'clock. Since its introduction in 2018, RHF has progressively become more robust and durable with...Now: $166.25Was: $175.00 -
Out of stock
VKTR - Heavy Duty Buffer Retainer - #V-4001-0301-002-RP
VKTR Industries
$15.00Patented design with a precisely angled strike face that corresponds to the vertical plane of the buffer assembly giving greater area of surface contact. These are the last retaining pins you will ever need. Features CNC Swiss Screw...$15.00 -
Out of stock
SureFire M640DF Scout Light Pro Dual Fuel LED Weapon Light #M640DF-BK-PRO
Surefire
$341.00Quickly locate targets in low-light environments with a SureFire M640DF Dual Fuel Scout Light Pro 1500 Lumen LED Weapon Light. These Gun Mounted Flashlights by SureFire feature a low-profile mount (LPM) that easily...$341.00 -
Out of stockOn Sale
Forward Controls Design - Quad Rail 9.5" - #RHF4-9.5
Forward Controls Design, Inc
Now: $250.85Was: $264.05We have long been fans of the classic KAC RAS since the early 2000s. Throughout the years, we've seen trends for lighter, small diameter, and rails-only-where-you-want-them hand guards, this was before the advent of Keymod and MLOK. Then quad...Now: $250.85Was: $264.05 -
Out of stockOn Sale
VLTOR - MPX 12” Handguard w/MLock System - #VWS-MPX-12
Vltor Weapon Systems
Now: $188.96Was: $209.95Lightweight Easy to install Direct replacement for factory hand guardNow: $188.96Was: $209.95 -
Out of stockOn Sale
VLTOR - SCAR Receiver Extension Stock Adaptor - #RE
Vltor Weapon Systems
Now: $168.26Was: $186.95The VLTOR SCAR Receiver Extension/ Stock Adapter provides a rock solid solution to installing a standard M4/AR15 collapsible stock onto the SCAR. This lightweight attachment is made in a variation for either the Semi-Auto version or Select Fire...Now: $168.26Was: $186.95 -
Out of stock
VLTOR - Extended Length AK47 Handguard W/ M-LOK System - #CMRD-AKM-E
Vltor Weapon Systems
$188.99The VLTOR CMRD AK Handguard is the first in many variations that VLTOR has planned for AK handguards. At this time it is offered in the “extended length” version but there will be lengths soon to accommodate carbine and mid-length variations...$188.99