RANGE REPORT ADDED
I just purchased and installed a sage stock from Fulton Armory at Camp Perry.
I can't compare it to the Troy, because I've never handled the Troy version.
It is interesting to install, you have to remove the muzzle brake, gas system and op-rod guide from the barrel, then install the Sage Op-rod guide and reinstall your own gas system and flash-hider.
THe Sage op-rod guide is designed to fit into the stock specially and be held in place with 3 screws. The screws are different lengths and you need to make sure you install them in the right order, or they will lock up the op-rod. The barrel is free-floating after this point though. The handguard cap is replaced by a steel washer supplied with the stock. The handguard is removed and the new handguard, with full-length rail, is held to the forearm of the stock by 6 screws.
This stock is pretty cool looking, but it adds weight. The M-14 isn't exactly a light-weight to start with though.
The area behind the reciever, where the collapsible stock hardware is, seems a little rough, lots of welds, etc... but it is plenty sturdy.
The release for the collapsible stock is directly in the center of the stock, just behind the reciever. It is easiest to use the thumb of the trigger hand to depress the lever for collapsing, expanding or adjusting the stock, although you need to rest the front of the rifle on something because it is very awkward holding the rifle with one hand by the pistol grip while adjusting the butt with the other hand. (unless the rifle is pointing straight up or down, and in that case, gravity will expand or retract the stock for you.)
Fit and finish is more than acceptable, though the stock mechanism is a little rough, as I said.
My only real gripe about the stock is that the adjustable cheek rest (adjustable up and down) is attached to the rear of the stock and moves with it. So at full extension, using the cheekrest means about 8" of eye-relief for reciever mounted scopes and bare minimum about 13-inches for handguard mounted scopes. It would be great for red-dot or holographic sights...or perhaps pistol scopes.
The lowest position of the cheekrest is still a little too high to use the iron sights, although the cheekrest can easily be removed with some hex wrenches and this makes the stock a little more comfortable actually.
That's really my only problem with the function of this stock - for now. I'll let you know what I think after trying it out on the range.
RANGE REPORT:
Ok, fired 2 mags through my M-1A with zero FTE/FTF - which is typical for my early pre-ban springfield armory. In fact...in all the years of competition and practice with this rifle, I can't think of more than one or two occasions where I had problems with it, and one of those was my fault..anyway:
I wanted to be sure it functioned right after disassembling and re-assembling the barrel attachments, which I had never done before.
Accuracy... well, I shot it with open sights, and kept it on paper at 100 and in the black at 50, which is miserable for me, and for this rifle, (I was holding 10-ring with my AR tonight, so I know I was doing my job) but don't condemn the product yet, scope testing will be more indicative of what this stock system can do.
The problem: Couldn't get a good cheek weld low enough to see through the sights (if using the cheekrest) I could get low-enough on the stock rods, but it was still awkward. Recoil is a bear. The added weight helps, but the impact on the jaw or cheekbone, in either cheek position, is no joke!
Again, I really think a scope will help, but I intend to remove the cheekrest supplied with the stock and come up with something that fits me a little better, perhaps a quick-detach cheekrest that slips down between the stock rods.
The pistol grip - it's a little sharp where the checkering starts, but a hogue slip-over grip will fix that.
For the money....it looks cool to be sure, and the convenience of not having to glass-bed is nice, but at least for me, it's not very comfy for accurate shooting.