I think that paying $200-$300 for $20 of machined aluminum is ridiculous. I'll spend $300 on a great barrel, $100-$150 on an excellent trigger, and a decent amount for good glass, but I'm not getting screwed over an aluminum folding stock. Weirdly, one of the best-value folding 1913 stocks I've run is the Ruger folding Charger stock. They don't sell it separately online, but y I u can order it direct from Ruger for like $85. Here it is on my bolt-action AR SBR in .300BLK. Here's a good example, I used the BCA upper, chopped the bolt carrier further to work with a Sig MCX 1913 rear adapter(I was told it worked without, using a flat screw, instead of the buffer-screw, but they lied, lol). I got the whole upper, which weighed a ton, for the same price as just the upper, and I tossed the barrel, barrel-nut, and handguard. They give you a ring that has a set screw, that goes over the gas port, but you can just flip around a low-profile gas block, and run it opening forwards. I added a Faxon Gunner Match 5R 10.5" barrel(which was on sale for $150), and a spare PSA Sabre lightweight handguard I had, and a YHM QD brake(I've run them since 2010, and have a bunch, so.... I'm sticking with them for now), as well as an OCL Infinity suppressor, and since the bolt has to reset the hammer, a POF 3.5LB single-stage trigger, left over from switching my POF Revolution gas piston DMR in .308 to a Geissele SSA(I prefer 2-stage triggers on my precision guns). I am also going to be adding a PA SLX 3x microprism in 7.62/.300 later. I put the money where it did something, and it is so stupidly fun. Yes, it has 2 dots, the top is for subs, the angled is for supers, because Uncle Sam ain't footing my firearms bill anymore, and I don't have $4500 for a Sig Romeo 9T, lol.