Wheeler Engineering AR Front Sight Adjusting Tool - This product will adjust the front sight found on the AR-15, M16 and M4 style of rifles. The black, zinc plated steel will stand up to years of use. A 1/4" hex shaft allows the use of a standard hex driver and the hole for a key ring ensures this tool will always be close at hand on range day. 4-prong designAdjust the A2 front sight on AR-15, M16 and M4 style of riflesBlack, zinc plated steel1/4" hex shaft allows use of a standard hex driverHole for a key ring ensures this tool can be close by