- Ahrends Inc
- American Derringer Corp
- C Sharps Arms Co
- Demex Products & Svc
- Detroit Armor Corp
- Detroit Armor Corp
- Douglas Barrels Inc
- Foster Ind Inc
- Four Seasons Svc
- General Dynamics Armament
- H-S Precision Inc
- Harbor Reloading & Supply
- HKS Products
- Jfs Inc
- Kilham & Co
- Knight's Manufacturing Co
- MOA Corp
- NCP Products Inc
- North American Arms Inc
- Obermeyer Rifle Barrels
- Shilen Inc
- Shilen Inc
- Sinclair International
- Summit Bullet Co
- Yellow Brick Enterprises
