BTW, Revi16B and ReviC12 seem too small in all 109s and 190s compared to the real ones, as well as placed too low.
Both, 190D9 and 109G10 used Revi16B, if you compare AH 109G10 gunsight with 190D9 gunsight you will also notice a notorious difference in size.
The following picture (posted by Wmaker at Picture Hangar) shows a 109G ReviC12, similar in size and placement to Revi16B. The sight is much taller than the current AH ones (G2, G6 and G10). The center of the sight is more or less in the vertical middle of the frontal windscreen while AH sight center is well below that position.
109G Revi