It looks like it might work (but I'm not a super expert
) so well done.
But it does look more 1980s than 2010s (ie more like compact/MK 8 mod 0 than the LW/Mod1 )
What size is it ? (barrel looks 75/100/114mm ?)
When was it made ?
Who made it (real or AU ?)?
Just for ideas here is a set of turrets to compare with.
JSB