OKP-7 Sight issues
The sight on railed systems like the SCAR-H CQC is sitting below the RIS system, this is also severely limits sight picture when using the AN/PEQ-15A laser sight on the SCAR as it takes up 30% of the view space.
The shot alignment is not correct, it should be aligned at 100m at the intersection between the 2 side bars and the "carrot", the design behind the OKP-7 sight is to mimic a digital version of a AK's iron sights when pictured correctly. This is actually ingenious as if the sight becomes inoperable the operator can remove the sight and use that mental image to get a correct sight picture through the iron sights. Currently it seems the shots are slightly low on some rifles and slightly high on others, this could very well be part of #1 as listed above due to the model offset.
This is a big one, the OKP-7 sight is NOT correctly placed on the AK-74 and AKM, it should be imitating a railed system with the sight picture over the iron sight not directly to the side of it. Ground Branch and Escape From Tarkov have the sights mounted correctly, you can use them as a reference. Additional IRL pictures included for reference.
The AKSU-74 is also not designed to use the OKP-7 sight, to my knowledge there is no mounting system for it, outside of a modern dust cover replacement with a rail. Source
Reference Pictures for an AK-74/AKM using the OKP sight with RS mounting system