I'm sorry for issue that you are having with our sights. The sights are designed to fit any mil-spec picatinny rail system. If you are still having issues getting them to mount, please reach out to sales@troyind.com for assistance. And thank you for your business!
These Troy Ind SSIG45SMDBT 45s Front & Dipotic Rear sights do not have Tritium. However, the sights listed at the link below do have Tritium.
https://www.opticsplanet.com/troy-micro-tritium-m4-front-doa-rear-set.html
Yes. The Troy Ind 45s Front & Dipotic Rear will fit and function on your Sig M400.
The Troy Industries 45s Front & Dipotic Rear sights will occupy (1) space between two pieces of pic rail. You should be able to fit these sights. If you have anymore questions I would recommend emailing us at Techsales@opticsplanet.com
Yes. The Troy Ind 45s Front & Dipotic Rear have both windage and elevation adjustment capability.
The sights can be used on either side.
The sights have an ambidextrous sight base.
Yes, these sight will work on that rifle.
These sights have an ambidextrous base and can be used on either side of the rifle.
These sights do flip, but they are not button activated. The base will be at a 45 degree offset and will not lay flat.