After a ton of research here's what I have come up (and some thoughts) with for as options for my Saiga 12.
Anyone want to weight in with thoughts/experience.
Main goal is to have something better than iron sights that is effective and reliable.
I know it is a shotgun and not a sniper rifle, so any overkill would have to be adaptable to a more accurate gun.
1) PK01-VS can be had for ~$320.
Very simple, all in one solution. (Skipped the PK-AS, as it appearantly might break on the S12)
Low profile. Can co-witness if desired (I think).
Support is non-existent. (only con?)
Reasonable price for the quality.
Rakurs is too expensive.
Should retain zero after R&R.
2) UTG Pro (MTU-016) plus any RDS (see below...)
Probably has decent support.
Not easy to R&R because of tolerances.
Tightening mechanism deforms the mount (con)
Some reviews state quality is subpar, others swear by it.
Can hold zero "well enough" (this is a shotgun after all...)?
3) RS regulate AK303M (~$207)
30mm (lowest possible profile with Aimpoint Pro) or Rail (more universal? but higher mounted)
Seems to be the undisputed best.
Sturdy and non-deforming clamping mechanism.
Holds zero as good as anything with R&R
Expensive (only con)
Can be adjusted to be perfectly center over the barrel.
Midwest Industries (might not be centered, deforming clamp?)
KV-04s (did I read about one or a knock off breaking?, does have a non-deforming clamp)
SM-13 (seemed similar to MI above)
NPZ Universal (hard to find?)
BP-02 (can't find one, gamble on center)
If I go with anything besides #1, odds are that if I ever get a real long range rifle I could just transfer the red dot to it, and hope it plays nice with a scope.
So in summary, I'm having a tough time deciding. Too many options. Need a second opinion on what is realistic. ~$500 seems reasonable. I would need a damn good reason to go closer to $1000. Anything decent/reliable for less, I'll take.
Budget option ~$100: UTG Pro and a Aimpoint CLONE (Primary Arms?) (haven't looked too hard into pricing...)
A step up ~$150: KV-04s + Aimpoint CLONE
$500-800: UTG + real Aimpoint pro or T1/T2
~$650: RS regulate + aimpoint pro