The Matrix Chassis by MasterPiece Arms is one of the most revolutionary and versatile rifle chassis’ ever produced. The interface between the shooter and rifle can be configured in over 100 different ways thanks to the variety of different grips, thumb rests, and trigger finger supports. The Matrix Chassis also positions the shooter’s hand closer to the bore of the rifle, providing even more variety to how the shooter can set up the chassis. In addition, the Matrix Chassis is available for Remington short and long actions, as well as for Tikka actions. This Chassis Kit Includes: Inclinometer level systemAdjustable length of pull and cheek riserM-Lok compatible forendV4 spigot mountStandard length night vision bridge2 round holderSwept 3 gripVertical 2 grip(3) thumb rests(4) trigger finger supports MasterPiece Arms Tikka SA LH Black Matrix Chassis MATRIXCHASSISTIK-BLK-LH-21