I agree that the rear-sight is not that special and I would definitely consider upgrading to something like the Gehmann 590 with a suitable adjustable iris unit.

The other thing is that although I am 5'9" tall I have a long body and shorter than average arms so a starter/junior type rifle is probably better for me that a full size one. I also quite like a lighter weight rifle and the full size German ones I've handled do see rather heavy at around 4.5kg.

Air Arms also list two versions of the MPR on it's leaflets - Sporter which has an overall length of 925mm and a Precision version which has an overall length of 1047mm and also has a muzzle extension and butt pad spacer kit fitted as standard.