Mounting a fore-grip has been done. Search site using keywords M17S, M17, M17sk, and bullpup. Also, go to www.google.com
, search using M17S keyword. Best hits in first few pages. BUT: take the EZ way out, and shoot the M17 using a modified Weaver stance, i.e., right hand on grip as usual, left hand OVER right hand, left elbow tucked into and resting on body. Easier, and more accurate. Enjoy.