Installed a heavy barreled 243 Howa action in my Axiom Stock with a 3-9x42mm scope and needed the cheek piece for proper eye height. In my case I only needed the low height cheek piece. But they send the high cheek piece also so I have it if I want to install a scope that requires higher rings. Great deal, simple and functional for all site options.
Pros: Two cheek pieces in one for best fit with low or high sites
Cons: tried to find one and couldn't
This review was written in the old system and had content requirements that are different than reviews written today.