Chrisite's Auto Bolt release for the Ruger 10/22 eliminates the need for two handed bolt release required with the factory bolt release. It is an instant, no fumble way to release the bolt in your gun ! When the bolt is held open just a slight pull on the bolt handle and the bolt will release. With the Auto Bolt Release no modifications are required to your gun. Just remove the factory bolt hold open and drop in your new Auto Bolt Release. Complete instructions with diagram included.