The manufacturer doesn't give information regarding what footprint the Bushnell AR Optics First Strike 2.0 Reflex Red Dot Sight has other than it fits the Picatinny/Weaver base it comes with. However, from what information I gathered it shares the same footprint as the Leupold Delta Point Pro. I do however recommend contacting the manufacturer to confirm that information.
According to the Owners Manual the 12 Hour Auto off feature CAN be turned off.
The Bushnell AR Optics First Strike 2.0 Reflex Red Dot Sight currently not available. The SIG SAUER Romeo 1Pro 1x30mm 6 MOA Red Dot Sight at the link below will fit the M17.
https://www.opticsplanet.com/sig-sauer-romeo1pro-1x30mm-red-dot-sight.html
No. The Hellcat Pro will only accept optics that use the Shield RMSc micro footprint like the Sig Romeo Zero, Romeo Zero Elite, Shield RMSc and more. This optic uses a DeltaPoint footprint and would not be compatible.
The Bushnell AR Optics First Strike 2.0 Reflex Red Dot Sight can be co-witnessed with a standard height AR sight like the one on the Springfield Saint. The mount will provide a full co-witness.
The Bushnell AR Optics First Strike 2.0 Reflex Red Dot Sight is not compatible with a Glock 21.
No, this would not be compatible.
Unfortunately the manufacturer dose not supply this information.
Yes, it is designed to handle high-power rifle rounds.