|
The 3 apertures iron sight of Type-97 is based on the Type-95, which is designed in a very weird way.
On a normal iron sight (like the AR-15 iron sight, the GI standard one) you use the larger aperture for closer target, and smaller aperture fot further target.
But on Type-95/97, The smallest aperture (1mm) is meant for 100m target (on real firearm), the middle one (2mm) for 300m target, and the 2.2mm aperture for 500m target. The small aperture on 100m allows more accurate shooting on 100m range tests, but it is hard to use (too small) in real combat.
On airsoft we don't have to worry about that long range, but the idea is the same. Small aperture, more accurate shooting but harder to aim.
__________________
|