This is an Sig Romeo1 Pro 1X30mm 3 moa sight. I mounted it on a P320 Carry Pro and it is a great little sight. That set up was too big for me as a edc so I sold the P320 and bought an optic ready P365. The footprint for the p365 is RMS-c and this delta point. I will sell this sight for $250 or trade for a smaller sight like a Holosun eps with a rms-c mounting that will work with my P365. Text is best. Bill 214-226-688six