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 KitŪ. 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 7.62MM rifles.