and this one too .. .
http://www.kingarmory.com/My_Homepage_Files/Page37.html
New from KA is this 922r-compliant replacement tappet for Saiga shotguns. This unit is
improved over the factory part in its anti-fouling design which is less prone to obstruction and
goes more rounds between cleaning (designed to run up to 1000-2000+rds without cleaning).
This part also increases the initial volume of the gas cylinder, improving cycling (especially
with low brass shotshells). Precision machined from a solid piece of 4340 chrome-moly alloy
and hardened, the KA-SG01 greatly improves
