Magpul manufactures the Hunter 10/22 stock in a way that it accepts 10/22 parts for a perfect fit every single time.
The bedding block has a lot to do with that.
The bedding block is made of A380 cast aluminum; one of the most popular aluminum alloys known for its durability and being lightweight.
The bedding block resembles more of an insert by the way it is designed. The way it fits into the hunter stock provides improved stability and reliability in your action.
Additionally, Magpul machined the polymer stock to ergonomic perfection.
The butt pad was designed and placed in the best possible position to reduce recoil and slippage, resulting in improved shot-to-shot accuracy.
Likewise, the grip is also designed to ergonomic perfection.
It is manufactured to an angle of 60 degrees from the bore axis. This specific angle was purposely designed to conform to the contours of your hand and provide comfort for extended periods of time.
From Faxon Firearms
The Hunter X-22 Stock is an ergonomic, full-featured stock for the ubiquitous Ruger 10/22 rifle.
Made from high-quality reinforced polymer, the Hunter X-22 features an ergonomic grip, adjustable length of pull and comb height to fit a wide variety of shooters, multiple sling mounting options, a non-slip rubber butt-pad, and M-LOK slots for accessory attachment.