AK 47 7. 62x25 caliber conversion. How I did it is explained

I built an AK47 kit into a straight blowback 7. 62x25 gun that utilizes both PPSH drums and mags and in this video I go over how I did it. I also did a check of the velocity of 1980 s romanian surplus and got a pleasant surprise, the 16 inch barrel is a big plus Ray at Saiga Tech USA convinced me to make this video, but I hope everyone else likes it as well.