I just ordered the Swamplight Sentinel based on this write-up: https://www.gunsholstersandgear.com/2020/08/24/what-is-the-best-optic-glock-43x-mos/
The selling points for me are the IPX7 rating and the 7075 chassis (Swampfox's ExpertVoice discount doesn't hurt either). Now If I can find an IPX7...