I bought one of the post dec $125 AMD sets from century recently with no bbl. After machining and chambering a 7.62x25 bbl for another members ak build I decided this mignt be the perfect parts set to build one myself . I plan on maintaining the rotating bolt and gas system. I have a blowback rifle (not ak) in this caliber currently and with yugo surplus the velocities approach 2000fps out of the 16" bbl. I have been handloading with 150 and 180 gr bullets and the 180's will reach almost 1000fps with starline brass and bluedot, heavy subsonic bullet with a much higher bc than 9mm or .40. My thought is with the long stroke ak action and large magazine well that I can construct a couple of diff mag adapters and use ppsh or m56 mags for the std x25 ammo and 30 carbine(or home made) mags for the loads with 150-180 gr bullets.
Turned and chambered the bbl yesterday, will update with pics and rambling as I go.
The bolt and carrier in the pic are bulgarian 5.45, bolt face is just perfect for the 7.62x25 case head. The locking lugs will need to be reworked somewhat to rotate in the amd trunion and I am sure feeding issues will exist, but those issues are what make a project like this fun.