I would contact the manufacture.
If you have a side receiver rail on the left hand side of your AK receiver, then yes this should fit.
The Midwest Industries AK Railed Scope Mount 6.75in. Rail mounts to AK47 receiver side rails. The Midwest Industries AK Railed Scope Mount will work with a PSA AKGF3 using the side receiver mount on that rifles receiver.
the vska does not have a side rail. so no
Yes, this will work with the SAM 7 AK pistol.
This Midwest Industries AK Railed Scope Mount will be compatible with your VSKA as long as you have a side rail interface.
Yes, the Midwest Industries AK Railed Scope Mount is compatible with your Century Arms BFT-47.
The Midwest Industries AK Railed Scope Mount should work fine on a PSA GF5.
Please email us at techsales@opticsplanet.com so we can help you with the issue you are having with the Midwest Industries AK Railed Scope Mount 6.75in. Rail.
The Midwest Industries AK Railed Scope Mount 6.75in. Rail will work with a Riley Defense AK47.