I beg to differ.
The recoil buffer is designed to separate fools and ignorants from their money. Ignorant of how an AK works, most people solve a "bolt carrier contacts rear block" issue with a buffer, when in reality, it's the recoil spring that needs replacing.
The Kalashnikov design did not include a recoil buffer, even though buffer technology was available at the time.
Adding an aftermarket recoil buffer can lead to problems, with the most extreme being a cracked receiver.
Recoil Buffer - Saiga-12.com
Muzzle brakes? - Saiga-12.com
Installing the Buffer on th