Anyways to start off with looks like a pretty good start, although there are a few things wrong and as you say, needs quite a bit of optimization.
The Ref your showing there looks like the correct scope (BTW can you send that one and any others I don't have to me when you get a chance) but it looks like you have it the wrong way round going off the other refs
If you look at this ref: http://i.imgur.com/ezGZG.jpg
You can see the "front" of the scope (not the eye bit) is right after the mount, like on your ref above on the side you have towards the front right now
As such, a few things need changing:

Where the eye bit starts is fine, but the mount closest to it needs to go forwards to around the trigger and the bit where the scope starts to open out maybe coming out a little more? And the Front of the sight needs to come back to the mount, and also the front mount possibly needs to go a little more forwards?
Little Xs are for loops you can remove.
Also I know you can't tell this by any of the refs but here is the scope mount I made for the SUIT for the L1A1 that might help you with this, dunno if this one is anything like this mind you but probably is, note how the bottom lips follow the rounded edge of the base:

One more thing is that all 1p scopes now need to be hollow like this M14 scope here:

Just the first indent from the eye bit then a simple tube all the way to the end with separate glass bits inside should do it
Can give more info on the glass bits later, just do the front glass bit for now which I think we have a generic texture for iirc so don't need to UV it to the scope, but not 100% on that but will confirm when it comes to UVing.
Anyways keep it up!







