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 spring kit will yield a 3.5-4.0 lb. trigger pull with JP Fire Control parts. This kit is intended for use with JP trigger parts and will not necessarily yield substantial change on standard AR-15 trigger components.