M249 AND MK46 UNIT ARMORERS KIT. THE KIT INCLUDES GO AND NO-GO GAUGES FOR TESTING HEADSPACE, BORE EROSION TOOL, SCRAPER GAS BLOCK CLEANING TOOL, FRONT SIGHT TOOL, PUNCHES IN 1.5MM, 2MM, 2.5MM, 3MM AND 4MM, STEEL CLEANING RODS, BORE AND CHAMBER BRUSHES, BREAKFREE OIL AND CLEANING FLUID, BORE PATCHES, NYLON BRISTLE BRUSH, SCREW DRIVER, HAMMER, ALLEN WRENCHES, SCREW DRIVER SOCKET TOOL AND POUCH.