Yes. The Streamlight Sidewinder Military Compact II Flashlight (MPN:14513) will include a headstrap and E mount kit.
The Streamlight Sidewinder Military Compact II Flashlight can mount to a picatinny rail using the Streamlight 1913 adaptor. You can find it using the following link:
https://www.opticsplanet.com/streamlight-sidewinder-1913-rail-mount-adaptor.html
Yes. The Streamlight Sidewinder Military Compact II Flashlight can be used with a 1913 rail mount adaptor. You can find it here:
https://www.opticsplanet.com/streamlight-sidewinder-1913-rail-mount-adaptor.html
It's an IR illuminator.
These have a max output of 55 lumens.
Using the helmet strap, you should be able to get it to mount pretty securely. Keep in mind it is designed to be mounted to military helmets, so it may take some modification to get it to fit or stay secure ideally.
Yes this will accept both AA and CR123 batteries.
You will have to contact stream light customer service for issues.
Currently these lights do not come in black.
These lights are assembled in the USA.