Help identifying this setup

[ray_man]

Can anyone tell what kind of stock setup this is?

[DaveC]

Very interesting. Looks like a variation or derivative of the Mesa Tactical "High-tube Telescoping stock with rail" but with some differences. Where is the original image from? There might be discussion about it as an NFA SBS. A search of "high-tube telescoping" or "multi-position" or "AR" type stock with rail might get a "hit." good luck! An intersting set up for sure.

[DaveC]

Midway has this:

http://www.midwayusa.com/product/669024 ... inum-matte

So perhaps that unit allows for a particular model of telescoping stock [unknown in this case], an after-market pistol-grip, and the addition of the optic?

[Synchronizor]

Though I'm not sure that buffer tube adapter is a Mesa Tactical unit (at least not the one pictured at the above link), I agree with DaveC. These look like they're based on a high-tube adapter with an attached top rail, and then some combination of aftermarket buttstocks and pistol grips. If you post this picture around on some AR-15 forums, you'll probably find someone who can identify the specific components.

All I can say is, I'd hate to shoot one of those, they look like they'd be about as comfortable as a baseball bat to the cheek & shoulder.

[DaveC]

With the stock in a straight-line like that, I'd think it would ameliorate recoil somewhat...

Admittedly, with no recoil pad, who knows? As for the cheek taking a beating, I'm not sure if I could get a stock weld with that set up. I'd have to give it a try. Some BUIS might be a nice to feature to have on that beastie, although the optic looks pretty rugged.

I will say that for me, a buttpad on a 12-ga. is not "essential" but it sure does allow me to recover better and get the gun back on target, and the rubber helps "stick" the stock into the shoulder pocket, which is a plus.

[Synchronizor]

A straight-line stock doesn't really reduce recoil, it just lines up the forces so there's no moment. This helps to prevent the recoil force from turning into muzzle rise, but doesn't change the total momentum of the system, which is what free recoil energy results from. If anything, I would expect a straight-line stock to increase perceived recoil slightly if it means all of the recoil energy is purely linear kinetic energy (straight-line momentum back into the shoulder) instead of a mix of linear and rotational.

Anyway, it was the lack of a recoil pad that makes me think those stocks would be uncomfortable. I could man up and shoot a handful of light target loads without much trouble, but if I was letting off heavy magnum shells or burning through a case of ammo at the trap range, I know I would be feeling it the next day.

[CDM Gear]

The stock adapter unit itself is made by Cavalry Arms. http://www.cavmfg.com/SST-870-AR15-Stoc ... ST-870.htm