Range report. Test fired both rifles today (the new Pol UF and my new (to me) krink). Anyways, 60 rounds through each, zero issues.
Firing them together, the UF has obviously a LOT more kick than the krink. I am surprised the krink is so mild, except for the giant fireball. The UF had a very sharp kick to it. I'll have to fire it next to a full stock AK for comparison. My last UF was a preban Norinco. I hated it because the UF was so unpractical for me at the time. Also, it was very uncomfortable on my chin. I guess I have changed the way I shoot this type of folder- my cheek weld is more of a cheek touch. Makes it more comfortable.
So, in order to recap: This Polish UF lives! It was built using an ak-builder.com polish underfolder flat, an ak-builder flat bending jig, and plinker's jigs.
Several firsts on this build for me: first time I built using a flat, first time I ever spotwelded, first time I ever heat treated, first time I ever did an underfolder, first time on the plinker's long jig. This was the fourth flat I bent ever. This rifle is reliable and very accurate. It would never have happened without ak-builders jigs and especially that pre-holed flat! Also especially helpful was this
UF assembly tutorial. I don't know who made it but I would have never figured it out myself! Thanks!!
Now I gotta get one or two of those '74 sidefolder precut flats from curtis and maybe he'll have some M92 flats also