RON L here = SERESURPLUS
Well, a few things to ask? Does this happen with Different Types of Ammo, as well as Different mags? I know you say the gun is clean, But Look for Varnishing of Laquir in the Chamber? Most (AK's SAR Series included) are pretty trouble free? Check all that out, try some different ammo and different mags ansd see what happens and let us know?