Red Dot for a 12 ga

I am looking for a low cost Red Dot that will hold up on a 12 ga 18" and 28".Any Recommendations ?

I put a Bushnell TRS-25 on a TC Contender pistol in 45-70. I fired 12 rounds thru it. The red dot held up better than my hand. That scope is now on my Ruger 22/45. Might be worth looking at.