How to remove AR15/M16 Handguard by yourself?  This fore grip Delta Ring Wrench is a must-have tool if you own an AR15/M16/M4 rifle and you want to remove the hand guard by yourself.  It eases the removal of the hand guards on both carbines and full-sized rifles by applying even pressure to the retention delta ring with one hand, and your other hand can take one piece of hand guard off at a time.  The removal can be done in seconds!