New Red Dot for my Trailside Competition

I am looking to add a new red dot sight to my .22 sig/hammerli trailside pistol. I am in a budget. Any suggestions?

Budget Red Dot for a 22?  For the money Sig Romeo5.  Mounts on a section of Picatinny Rail.  

https://www.sigsauer.com/romeo5-1x20-mm.html

Primary Arms Classic Series Gen II Removable Microdot Red Dot Sight - BLEM

Budget priced for sure.

If it has the 11mm rail, like the Xesse, Hawk makes a good 30mm
dot for about $150.

L. Boscoe wrote:If it has the 11mm rail, like the Xesse, Hawk makes a good 30mm
dot for about $150.

Yes it is a 11mm dovetail rail. I was thinking to add an adapter dovetail to picatinny.