The Leatherman mut

By far the most recommended edc multi-tool for gun owners. The Leatherman mut has tools for on the move firearm repair. The Usual pliers, knife, screwdriver, carabiner, and bottle opener come standard as expected, and the LEatherman MUT also includes bolt override tool, bronze carbon scraper, #8-32 cleaning rod/brush adapter, and firearm disassembly punch

Of course you probably already have a multi-tool, its probably a leatherman but do you have a multi-tool that helps strip and repair your firearms.

The Leatherman MUT is the practical and tactical tool for military, LE, or civilian shooters and hunters. The MUT features multiple areas on the tool threaded for cleaning rods and brushes and all the screwdriver bits are sized for standard military and civilian sighting adjustments. The Leatherman MUT is built with the flexibility to replace the most commonly used parts in the field, using a simple Torx #8, keeping down-time to a minimum. With all this, a MOLLE sheath and scope adjustment wrench included, the Leatherman MUT is a must have for every gun owner.

• FIT MORE FUNCTIONALITY: A variety of pliers, wire cutters and crimper, knife, saw, cutting hook, hammer, bolt override tool, bronze carbon scraper, #8-32 cleaning rod/brush adapter, firearm disassembly punch, carabiner/bottle opener, and large bit driver.
• The Leatherman MUT features one hand opening 
• ALWAYS ON HAND: With its heavy-duty yet portable size and pocket clip, your MUT is always within reach and ready to work. Store an extra bit (included) in the handle for even more capability.
• The Leatherman MUT comes with a 25 yr warranty