Reclaim the lost space in the standard handgrip of all M4/M-16's with this military issue cleaning system. The essential cleaning rod, tips, and brush are neatly packed into the Otis Grip Kit®. Developed for lightweight special operations weapons, bore clearing and cleaning can be accomplished in seconds. The set compliments, and is fully compatible with the extensive #223-2 M4/M16 Cleaning System. Otis also makes a hollow grip cleaning system for your 6.8MM & 7.62MM rifles. For instructions go to the How To's, then Video Clips & Instruction Sheets, then The Demonstration Video on How to Clean your 5.56MM