Good sight for dpp footprint - Holosun Sub-compact HS407K-X2 1x 6 MOA Dot Red Dot Sights

This is an excellent sight for the price. Made of good aluminum alloy (7075 T6 claimed by mfgr), fits the delta point pro footprint and measures some 0.9" at the base, making it perfect for a slim/single stack slide (glock 43, p365, 1911, etc). It is adjustable from daylight bright to nvg settings. It has a cutout to accommodate your backup rear sights, though you will probably still need Supressor height sights to make this work. There is a motion sensing feature which will turn the sight on, and a auto-off feature to save battery: very well thought out. It can also be put into a "hard" on mode. The battery can be swapped from a side tray without removing the mounting screws and losing your zero. It seems to be very well sealed and would likely stand quite a bit of water thrown its way - more than I've put mine though anyhow.