The AK/Valmet Recoil Buffer fits on the recoil spring guide rod of any Kalashnikov style weapon. This includes AKs, Valmets, Galils, Vepr, and MAK 90s, just to name a few. Installation takes less than a minute and can be done without any special tools. What makes the Kalashnikov action so reliable, is also what causes its inevitable downfall, the violent manner in which it works. Each time you fire your rifle the gas system propels the bolt carrier to the rear very violently, which generates a shock wave that is absorbed by the metal receiver. After a period of time, this repeated pounding causes the action itself to lose its structural integrity. The most notable side effect of this is the difficulty one has in controlling the weapon during rapid fire. By installing a Recoil Buffer you totally eliminate the metal to metal impact of the bolt carrier to the receiver and most of the action noise.
Those who install Recoil Buffers into their AK's will not only be protecting their investment by prolonging its service life, but they will also find that the recoil is reduced and muzzle stability is increased. In fact, Recoil Buffers can do this for any gun! They work so well that many people believe they should be installed in all guns by their manufacturers. Unfortunately, this is not yet the case. So, until that time comes, make sure your weapon functions as well as it possibly can!
A recoil buffer will protect your weapon from the shock and vibration caused by the metal to metal impact of the bolt/bolt carrier or op rod with the receiver. This impact is what causes felt recoil and muzzle jump. When two pieces of metal hit each other repeatedly with the amount of force generated by the firing of a weapon, over time the metal will begin to change shape and can even crack. This is why, for years, the top gunsmiths in the country have recommended the use of Shok-buffs in 45 autos. In rifles, you have a larger mass of metal combined with a larger cartridge; it just makes sense to offer your rifle the same protection. All of the buffers are rated for a life of 5000 rounds.