With The bottom on the gun take care of resting within the System, the quad rail mount need to be flush Along with the top rated with the platform.********** *** ******** ** ******** ** ************ *** **** ******** ***** ** ** ******** ** ***'* *** ***** ************. ** ** ************ ******* ** *** **** ** ****** ******** ******** **** **** **