I’ve been running a UBR gen 2 on my precision AR for about a year now. While I’m happy with it as a stock, I’m starting to wonder if I wouldn’t be better served with a PRS in its place for the following reasons:
1-No way to mount a monopod on UBR gen 2. For the life of me, I can’t figure out why no one has solved this yet. I would think a buttpad that extends down and forward at a 90 degree angle with a small section of rail would be on the market by now.
2-PRS has more adjustments.
3-PRS shape is better suited for hooking into shoulder with off hand.
Does anyone have both stocks and strong opinions either way? I just wish it were a tad easier to “lock” into a solid prone position than it is with the UBR. The rifle in question is for shooting nearly exclusively from the prone with a bipod. As of now, my only solution concerning the UBR is to make custom sized squeeze bags for stability.
I have both stocks and I really like both. If you are using it on a precision AR I would try out the PRS. It’s way easier to get a more stable position when shooting off a bag plus the rubber butt plate I think works better in your shoulder pocket. Some local matches I shoot has some stages where you can’t use a rear bag or anything besides a bipod. The PRS is easier to use in those stages I can get my hand under it and get a more stable position. 
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^ Thanks for the feedback!
No problem. Hope I helped
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IMHO, the PRS GenII is the best of the best. And the UBR are so so. I had two.
Go for the PRS Gen II
PB
I have both. My heavy-barreled long-range coyote rig has the PRS Gen 3 while my 14” practice/3 Gun carbine has the UBR Gen 2. Each fits its intended use very well, IMO- the PRS is more stable and easier to use for long range while the UBR is a great, built-like-a-tank all-around design. It also helps to balance out a nose-heavy weapon (if suppressed, for instance). If weight weren’t a concern I’d probably use a UBR Gen 3 on any general purpose gun.
PRS is the way to go. I think the UBR is more suited to a dual-purpose recce setup but the PRS is a much better Precision Rifle Stock.
Thank you for the continued feedback, everyone.
Euro-I was reading through your thread the other day after the latest match you posted and I noticed you had a PRS (my memory said it was a UBR). About a week later I was at the shop of a very accomplished shooter, and when reviewing my set up, I noticed he also was running the PRS on his precision rig, but had about a dozen UBRs in play on everything from iron sighted to recce style builds.
Do the prices on PRS stocks go lower than $200 anywhere?
Check primary arms on occasion I think they do
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PB- why the Gen 2 over the 3? Or am I reading your post incorrectly?
Thanks again for everyone’s feedback. I installed a PRS on an A5 equipped lower last night and swapped my SSA-E to that lower. Looking forward to running it this week.
Let us know what you think.
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I threw a 16" med weight upper with a 2.5x10 Vortex on the lower last night and ran it in a stage last night. I found it much easier to get steady/stay steady when prone, and make hits on the 200 yard 4" plate during the course of fire. Course of fire was standing on 5 decent sized hangers, go prone and hit the 6" and 4" plate at 200 (all targets at 200 yards). Bipods allowed, but no bags. I can appreciate the flat bottom of the stock and being able to hook my hand a little better.