I found this guy while browsing for a new high comb stock assembly for my KS-12 (American Saiga-12). It looked a bit gimmicky, but decided to give it a try. More so for the adjustable comb that I needed to run a holo sight since the tube sits so low on a Kalashnikov in relation to rail mounted optics. It’s gimmick is that the stock floats over the locking pin with a heavy spring, giving about 1” of cushion under recoil.
Absolutely blown away with how it handles 12 gauge recoil. The Saiga is on the abusive side for an auto loading 12 gauge, especially with magnum loads/ slugs. It feels more like a pump than a semi-auto, and leaves my shoulder bruised up pretty good after 50 or so buck or slugs (it’s no Benelli). While there’s a definite loss of stability with its floating design, recoil is WAY down. On the order of it feeling more like a 7.62x39 instead of a 12 gauge. The line between high brass and low brass recoil is definitely blurred. Both equally as soft, and with no bottoming out even with slugs. I rip this gun as quick as I do my carbines, and was not fatigued at all today even after nearly a case of mixed slugs and buck. The only thing that was sore was my wallet thinking about how much money I just imbedded in the dirt.
All of that being said......I really can’t think of a reason to buy this if you’re wanting to put it on a rifle. The spring is too stiff to compress under the recoil of a 5.56 (which they state in their description), but on a heavier caliber like .308 the stock wobbles too much on the tube for it to be really useful with quick accurate shots. And I’ve never felt the need for a raised comb on an AR with a properly mounted optic anyway. Neat product that does its job very well, quality item, but very niche.