TONI SYSTEM COMPONENT 3 holes thumb rest, left side, right hand shooter3 holes thumb rest, left side, right hand shooter The thumb rest surface in the 3 hole model has an inclination from the barrel line of 47 The position of the thumb rest is shifted upwards by approximately 9 mm. The supporting surface is 21x14. 8 mm. The hole spacing is 10mm. Screws are included but must be adapted according to the weapon Weight 17,3g 0,61oz Material: Alluminio Aluminum Compatibility: Beretta APX Tactical Glock 17 34 gen 3 Glock 17 34