When searching through the interwebs I stumbled upon this flip up sight. Practical idea for airsoft but for real steel not so much.
We would like to recommend our new product Vism Flip Dot Pistol Sight to you, specification as below:
Magnification: 1X
Reticle: red dot
Dot size: 3 MOA
Length: 2.0 in
Width: 1.2 in
Height: 1.1 in
Weight: 1.0 oz (without plate)
Battery: 1*CR2032 battery(Excluded for shiping)
Colors: Black / Tan / Orange / Red