Instead , the piston is accessed in a manner familiar to users of traditional Kalashnikov rifles , by removal of the gas tube .
Also , like the IZ - 433 , the gas block lacks a screw in gas adjuster .
The piston is accessed in a manner familiar to users of traditional Kalashnikov rifles , by removal of the gas tube .
Also , like the IZ - 433 , the gas block lacks a screw in gas adjuster .