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
-
Forward Controls Design - Trigger Guard - TGF Winter
Forward Controls Design, Inc
MSRP: $25.00$23.75The Forward Controls Design Trigger Guard — Winter (TGF Winter) is FCD's enhanced winter trigger guard for AR-15/M16 pattern lower receivers. The TGF (Trigger Guard, Forward Controls) Winter variant features a larger, more open trigger guard opening than...MSRP: $25.00$23.75 -
Forward Controls Design - AR Enhanced Mag Release Button - Dimpled - EMR-H-AA
Forward Controls Design, Inc
MSRP: $17.00$16.15The Forward Controls Design AR Enhanced Magazine Release Button — Dimpled (EMR-H-AA) is FCD's heavy-profile, dimpled-texture enhanced magazine release button for standard AR-15/M16 pattern lower receivers. The EMR (Enhanced Magazine Release, Forward...MSRP: $17.00$16.15 -
Out of stockOn Sale
Q LLC - Fix 16" Barrel Assembly - 8.6 BLK - #ACC-FIX-BARREL-8.6-16IN
Q LLC
MSRP: $515.00Now: $459.00Was: $515.00The modular nature of the FIX rifle allows the operator to exchange calibers and barrel lengths without the need for a gunsmith. All of Q, LLC's FIX Barrels are made from high-strength, lightweight stainless steel. Model: 16″ 8.6 BLKFinish/Color:...MSRP: $515.00Now: $459.00Was: $515.00 -
Out of stock
LMT Defense - 5.56mm 10.5" Chrome Lined MRP Barrel Assembly - L7MA1B
LMT Defense
$554.40The LMT Defense 10.5" Chrome Lined 5.56mm MRP Barrel Assembly (L7MA1B) is engineered specifically for LMT's Monolithic Rail Platform (MRP) upper receivers. This 10.5-inch, 5.56×45 (.223) barrel features a 1:7" right-hand rifling twist, low-profile gas...$554.40 -
On Sale
Surefire - Warden 5.56/7.62 Blast Regulator for SOCOM Muzzle Device - WARDEN-DE
Surefire
MSRP: $329.00Now: $296.00Was: $329.00The SureFire Warden 5.56/7.62 Blast Regulator — Desert Earth/FDE (WARDEN-DE) is SureFire's Warden blast regulator in Desert Earth finish for use with FDE-configured rifles. All features of the standard Warden apply — Fast-Attach® compatibility, non-NFA...MSRP: $329.00Now: $296.00Was: $329.00 -
On Sale
Magpul PMAG M3 30rd. .223/5.56mm AR15 Magazine - Coyote Tan
Magpul Industries
MSRP: $14.95Now: $14.20Was: $14.95The Magpul PMAG 30 AR/M4 GEN M3 .223/5.56 Magazine — Coyote Tan (MAG557-MCT) is Magpul's industry-standard 30-round GEN M3 PMAG for AR-15/M4 rifles, finished in Coyote Tan (MCT) for use with FDE/coyote-configured rifles and gear. The GEN M3 PMAG features...MSRP: $14.95Now: $14.20Was: $14.95 -
VLTOR - A5 BUFFER - 3.80 TO 6.83OZ - A5H
Vltor Weapon Systems
$44.06 - $148.46The VLTOR A5 Buffer (A5H) is the critical component of VLTOR's A5 buffer system, a drop-in upgrade that replaces the standard mil-spec carbine buffer and spring with a longer, heavier buffer optimized for carbine-length AR-15 systems. The A5 buffer...$44.06 - $148.46 -
Forward Controls Design - 0.750 Gas Journal Gas Block - GBF
Forward Controls Design, Inc
MSRP: $65.00$61.75The Forward Controls Design 0.750" Gas Journal Low-Profile Gas Block (GBF) is FCD's precision-machined low-profile gas block for AR-15/M16 barrels with a standard 0.750" gas journal diameter. The GBF (Gas Block, Forward Controls) is machined to extremely...MSRP: $65.00$61.75 -
Forward Controls Design - 50° Ambidextrous Safety Selector - ASF-50Q
Forward Controls Design, Inc
MSRP: $95.00$90.25The Forward Controls Design ASF-50Q Ambidextrous Safety Selector is a 50-degree short-throw semi-auto safety selector with FCD's distinctive offset "Q" levers — engineered from the ground up as a defense, duty, and combat-grade safety selector for AR-15...MSRP: $95.00$90.25 -
Out of stockOn Sale
Aimpoint Micro T-2 Red Dot Reflex Sight #200180 - 2MOA, No Mount
Aimpoint
Now: $923.00Was: $1,026.00The Aimpoint® Micro T-2 red dot optic was designed for users who require an extremely rugged, lightweight, and compact sight. The Micro T-2™ optic has unmatched optical clarity and can withstand the physical...Now: $923.00Was: $1,026.00 -
On Sale
Magpul angled foregrip for MLOK handguard MAG598-BLK
Magpul Industries
Now: $25.60Was: $26.95The Magpul MOE M-LOK Angled Foregrip (MAG598-BLK) is Magpul's angled foregrip (AFG) designed for M-LOK compatible handguards. The MOE Angled Foregrip M-LOK provides the same proven angled grip ergonomics as Magpul's Picatinny AFG — placing the support...Now: $25.60Was: $26.95 -
Out of stockOn Sale
Magpul MBUS 3 flip up Back-up-front sight #MAG1166-BLK
Magpul Industries
Now: $37.95Was: $39.95The next evolution in Magpul's MBUS (Magpul Back-Up Sight) line, the MBUS 3 incorporates the best features, strengths and value of their original MBUS and MBUS Pro Sights in a feature-packed back-up sight system. Significantly reduced in size from the...Now: $37.95Was: $39.95