Absorber on the Buttstock
Absorber on the Buttstock created for old generation of AK serie riffle, likes AKM, AK-74, AK-74M and etc. Created as support to cheek, when you aiming for a long time. Also absorb recoil.
So, this absorber will works great with any type of gun - airsoft, real gun and etc.
Also, there is second version - Molle "Cheek". It's created for aims, when you need to put Molle pouch on buttstock.