Stony's newest item is the awesome Tri-rail optics mounting system! This Wild new picatinny rail system allow shooters (3) three areas to attach thier lights, lasers and grips! One rail along the bottom of the receiver in front of the trigger guard to mount lasers, lights or Tactical grips and two more rails along the sides to mount lights or lasers! There is a sling stud securely mounted on the left side. The look and construction of these new rails system is amazing. They are now available for M11's and M10's.