Impact M3 K&L probe block and cheek rest

I use the ST cheek riser rest with the K&L probe block on both my impacts, as I like the convenience of easy pellet probe removal without having to remove anything. But, the trade off is you’ll have to carefully mill off almost half of the ST inner piece and re tap two new mounting holes for the outer adjustment screws.

The turn out on mine is the K&L probe block is like a strong 1/32” above the ST inner block and completely doesn’t collide or rub on the bottom of the pellet probe block as I cycle the cocking action. Very smooth. 

Careful precise measuring, planning your steps carefully, it can be done with basic hand tools. This is for sure a measure twice cut once job, but well worth it.



if you decide you want to pursue this mod to the ST cheek rest shoot me a pm as I took down meticulous notes in case I had to do this again