What is your opinion on the different types of optics?
#1 I've got a 1X4-24 scope on a cantilever mount. The ocular bell hangs over the charging handle.
#2 is a red dot. You have to turn it on and needs batteries.
#3 is a holographic sight. I've no experience with one.
#4 is an ACOG. I want one!
I've been going through this myself most of this year. I accelerated the purchases of the rifles I wanted due to politics and am now outfitting them how I want.
My needs: Target shooting (400yds at my club) and carbine classes from beg to adv. SHFT too of course.
1-LPVO option is the one I'm currently the biggest fan of. Cameraland is selling Bushnell Elite Tactical 1-8.5x for super cheap and bought one. They throwed in a Steiner 34mm mount for $50-which ended up being perfect for now. I put this set-up on my KAC 16" cl rig. Eyepiece is about flush with ch and covers the BUIS. Will put on Scalarworks mount when I get chance. I liked the Bushnell so much I bought another for my LMT New Zealand rig.
With this option I can hit all steel targets at my club-200-300-400 and am working on low ready/high ready shooting proficiency using the scope at 1x and illumination. Don't think I'll ever be as fast as a dedicated red dot but the benefit of 8.5x magnification is awesome.
2.-I have a couple of 14.5s set up with an Aimpoint Comp M5 and a Trij MRO. This is ideal for 50yds on in, fastest presentation from low/high ready. You can leave them on and co-witness irons.
With this option I am the fastest on target at 50yds and in. I can't shoot 100yd groups worth a crap nor engage any steel on the long range. This is me-I've seen dudes ping steel at ridiculous distances with a RDS that I could never dream of. I'm heading toward the big 50 and like my magnification.
3.-No experience either-my BIL has a Holosun on his Springfield 10mm pistol and it's really hard to get used to. It would take some training no doubt but I really don't like them on pistols.
4.-I have a lot of experience here too. Have ACOG 4x w/ RMR on top. This works well once you train with it. ACOG eye relief sucks but still doable. RDS on top is pretty high up but with training doable although not preferable. This is why I picked up an Elcan 1x/4x. I really really like this option-better eye relief and it's a red dot all in one. Glass is amazing (so is ACOGs though). I really like both of these options but as mentioned before I have a hard time hitting steel at 200-300-400 with them. I can do it but nowhere near as enjoyable as using the 8.5x of the Bushnell.
With this option I can use for close shooting and 100+ yards. I can do decent 100yd groups with and somewhat hit long distance steel on good days.
All in all there are other things to consider-the Bushnell is a heavy tank and would have to be removed to use BUIS although 45deg is an option. My BCM 14.5 with MRO is super light and easy to use-nothing is in the way of using the rifles functions-super simple. ACOG/Elcan option somewhere in between.