About 300 Arms

300 Arms is a custom firearm maker located in Northern Colorado. We specialize in hand building firearms, laser engraving, CeraKoting and GunKoting. We also carry a full line of gun parts and accessories, including magazines, for all your shooting needs.

Featured Products

Custom 9mm DTOM G19
$950.00 $650.00 Sale
In Stock.
Custom Tattered Flag Punisher AR 15 Rifle
$1,250.00 $1,050.00 Sale
Back Order.
Custom 5.56 x 45 Stingray AR15 Rifle
$1,299.99 $1,099.99 Sale
In Stock.
Custom 5.56 x 45 Baby Yoda AR15 Rifle
$1,050.00 $759.00 Sale
In Stock.
Laser Engraved Dad The Legend
In Stock.

Visit us at local gun shows or shop online

We love our customers, so come see us at the gun shows in Loveland, Longmont, Greeley, Denver, Colorado Springs and Pueblo.

Firearms | 80% Lowers | Magazines | Ejection Port Covers | Charge Handles


300 Arms Corp

Wellington, Colorado, United States
(970) 632-2729


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