Gun Parts
Welcome to the Gun Parts superstore at Boss Firearms Company, LLC. Whether you are undertaking a custom precision build, performing routine armorer maintenance, or upgrading an existing platform, we stock the high-performance components you need. As an authorized dealer for premium OEM and aftermarket manufacturers, we provide everything from stripped receivers and match-grade triggers to enhanced bolt carrier groups (BCGs) and duty-ready barrels for rifles, handguns, and shotguns.
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ARISAKA - Quick Detach Mount - QD-M
Arisaka
$23.00The Arisaka QD Mount is a low profile design for M-Lok handguards. It features an anti-rotation interface and accepts all standard QD sling swivels, as well as the Geissele/ALG Defense forged QD...$23.00 -
Out of stock
ARISAKA - Hand Stop - #IDX-M
Arisaka
$30.00The Patented Arisaka Indexer is a continuation of their low profile, minimal control accessories. It was developed due to end-user demand for an M-Lok version of their Finger Stop for Picatinny...$30.00 -
ARISAKA - Hand Stop - HS-P
Arisaka
$35.00The Patent Pending Arisaka Hand Stop is a continuation of our low profile, minimal control accessories. The primary goal of this accessory is to aid the user in pulling their rifle into their...$35.00 -
ARISAKA - Finger Stop - FS-P
Arisaka
$25.00The Arisaka Finger Stop was developed as a low profile, minimal control accessory. This version is for 1913 Picatinny rails. The Finger Stop has a slim profile which is ergonomically designed to be...$25.00 -
Sons of Liberty Gun Works - 5.56 158 Carpenter BCG - #SOLGWBCG556
Sons of Liberty Gunworks
$179.99If you're building an AR-15 meant to endure harsh conditions and perform beyond Mil-Spec standards, the Sons of Liberty Gun Works (SOLGW) Bolt Carrier Group is the go-to choice. Engineered with...$179.99Qty in Cart: 0Quantity:Price:$179.99Subtotal: -
Out of stock
Shield Arms - S15 Gen 2 Powercron 9mm 15rd Magazine for Glock G43X/G48 - #SA-S15-PC
Shield Arms
$39.99Shield Arms S15 Gen 2 Powercron 9mm Magazine for Glock G43X/G48, 15 Round. The S15 Magazine is a flush-fitting 15-round magazine designed for the Glock G43X and G48 pistols. The S15 is a steel...$39.99 -
Out of stockOn Sale
Proof Research - 26" Carbon Fiber Sendero .284 Bolt Action Rifle Barrel - #106556
Proof Research
Now: $899.00Was: $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...Now: $899.00Was: $999.00 -
On Sale
Surefire - Warcomp 5.56 Flash Hider Silencer Adapter - WARCOMP-556-1/2-28
Surefire
MSRP: $169.00Now: $152.00Was: $169.00The SureFire WARCOMP 5.56 Flash Hider/Suppressor Adapter (WARCOMP-556-1/2-28) is SureFire's flagship muzzle device for AR-platform 5.56mm rifles. It functions simultaneously as a highly effective...MSRP: $169.00Now: $152.00Was: $169.00 -
Out of stock
Franklin Armory - AR15 Binary Firing System Drop In Trigger Kit - #5550
Franklin Armory
$386.99Franklin Armory's revolutionary Binary Firing System (BFS) is ideal for three gun competitors, tactical shooters, and recreational enthusiasts. It features a three position selector - Mode 1 for...$386.99 -
Out of stock
Heckler & Koch - SL8 .223 10 Rd. Polymer Magazine - #219472S
Heckler & Koch
$69.00Heckler and Koch SL8 .223 10 Rd. Polymer Magazine. This high strength polymer magazine is made by H&K in Germany. Heckler and Koch parts and accessories are made to the highest standards in material...$69.00 -
Out of stockOn Sale
Sig Sauer - Romeo1 Pro Red Dot 1x30mm 3 MOA - #SOR1P100
Sig Sauer
Now: $349.99Was: $459.99The ROMEO-MSR is a sealed compact red dot or green dot sight intended for MSR,ÂNow: $349.99Was: $459.99 -
Out of stock
Q - Literally The Best Trigger Ever Made - #ACC-TRIGGER-LITERALLY
Q LLC
$275.00Q's Literally The Best Trigger Ever Made is crisp, clean, lightweight, safe, and has an unbelievably short reset. Weight: 1.9 oz Platform: AR-15/AR-10 Type: 2 Stage Adjustable: No$275.00