This is my Holy Grail gun, it is a true Bulgarian Krinkov chambered for the correct cartridge (5.45x39). This was a very fun gun to shoot and I plan on swapping out the solid stock for a triangle folder and also put on some Bulgarian wood. A lot of people who own these rifles say they have more felt recoil and it is snappier due to the increased size of the gas port. I didn't notice any of that and it shot just like all my other 74s for the most part. I do want to point out that this was the worst Arsenal trigger or any trigger for that matter that I have ever use. Wow, it was pathetic and needs a lot of polishing to smooth it out. I was shooting the now banned armor piercing 7N6 ammunition. I am really surprised the backstop could stop this ammo since it goes through everything like butter.