ermmm . . . maraming klaseng POSP in the market. like this one, for eksampol:
pic courtesy Red Soldier
or this one:
pic courtesy Avtomats in Action and from this diagram:
pic courtesy Avtomats in Actioneh hindi ko makita ung lightbulb na sinasabi mo. are you referring to the LED?
the POS, in general and AFAIK, are meant for the longer AKs (and definitely not for the AKS74 U) that have a different rear sight arrangement and require a higher mounting bracket. so most probably, either mababa ung pagkakalagay ng side mount plate ng RK01 o maiksi ung mounting bracket na kasama ng POSP na nakuha mo.
tsek
this page kung kailangan mo ng tulong sa type ng POSP mo.
tsek
this other page kung kelangan mo ng instructions sa pagadjust ng clamp.
o baka naman 'yan ung ACM POS, gaya neto?
pic courtesy Gunner Airsoftthat one is specifically meant for the SVD and will not fit other AKs.
possible rin na hindi yan tama sa spcecifications.
makakatulong, kom zuljin, kung maglagay ka ng pic para makita ng mga kasama natin dito kung ano, sakli, and issue ng AK mo. without seeing ur pics, my initial thinking is it would be better to adjust the side mount plate rather than lihahin mo ung receiver cover. opkorps, depende rin yan kung gaano kalaking clearance ang kelangan mo