This thread lead me to slap my 1-6 on the VSR.
The two tubes in comparison:
Vortex Viper PST Gen II 1-6 First Focal Plane with VMR-2 reticle
Bushnell 1-4 Second Focal plane with Drop Zone reticle (BDC reticle)
Clarity of glass is very close, but the Vortex is more clear.
FOV is pretty much the same, as is the eye relief.
The 1-4 is lighter by about 5 oz. It is very noticeable compared to the Vortex.
While I love my Vortex on my AR (real) I do not think it is better suited for Airsoft.
The additional 2 x seems to close the FOV too much for my liking.
On my AR I run the Vortex and a redot on a 30deg side mount. This is the perfect set up in my opinion.
Then again we a talking about real steel on a semi-auto platform.
For airsoft where a long range shot is 90 meters, the 1-4 seems to fill the job perfectly.
This is all just my opinion, so take that for what it is worth.
AR in question
View attachment 20987
View attachment 20988