I have the 4-12x50 AO Map 6a version, used for hunting.

I picked mine up from BAR and compared with non AO version before buying.
Non AO fine on low magnification regards depth of field, on high magnification near objects blurred a little. I don't do HFT; fixed might be good for that?

The scope has a bright image, good enough to do a barn clearance in sodium light.
Has a wider field of view than average by a good bit as claimed.
The fine cross hair doesn't obscure your target & Blue IR useful.
The eye relief range is excellent on low magnification; as magnification increased, you have less leeway where your eye has to be.

I have tested whether Point Of Impact changed with magnification, and didn't appear to (25 yards zero).

The scopes are relatively compact/short and keep weight back on rifle.

For the distances you shoot with a 12ftlb air rifle I'd say perfect; a no brainer at the price - excellent Value For Money, especially in the current climate.