here’s my only issue with AK-47s: they were born to be fully automatic and the ones we can get aren’t. So your stuck with a one shot one kill weapon that isn’t known for being super accurate. this versus the AR15 which is known to be a sub moa tack driver with the right set up. To put it in perspective, I have shot an AR15 that would shoot hole for hole at 100 yards. whatever spot your crosshairs landed on got a bullet hole in it at 100 yards without any noticeable deviation. If your cross hairs landed on a fly that happened to land on your target, that fly would be shot dead. that’s the name of the game. imho.
Look into a milled receiver AK. There’s some tuning that can be done if you like tweaking guns. Upper and lower handguards greatly affect barrel harmonics. SLR-101s has a side rail. Don’t know how you’ve mounted optics.