The Company produces All-In-One-Tool. 

The tool works on all the Mark series I, II, III and 22/45 model pistols without altering the gun.

Allows you to clean all the recommended parts. Protects your gun and fingers from scratches. Ruger Mark series .22 pistol tool for disassembling and reassembling, and Magazine loader. TTAG gave a 5-star rating.