Rat Worx (Research And Testing Worx, Inc.) is known in the industry as a class II firearms manufacturer. Our focus is primarily gun and suppressor sales, along with manufacturing of gun parts, and suppressors.
Rat Worx is home of the only Rat Worx MRX automatic chain drive knife.
Rat Worx, Inc. was founded in 2002 and is headquartered in Mt. Morris, IL.
This Ruger SR40 replacement magazine is constructed form heat-treated blued steel with its components molded from Technapolymer. The anti-fatigue spring, helps keep the magazine loaded and ready for years to come.