Good for the price
This adapter is made for the purpose of folding a buffer tube that doesn't have to function as a buffer tube - for example, dedicated rimfire. It is a chunky, semi-matte finished piece of steel. The adapter screws into anything threaded to accept a buffer tube and there is a thinner than standard castle nut to secure that end. In the middle is a substantial appearing hinge with a "lift up" flange to disengage it from the locked open position and which also serves to cam it into the folded position. At the aft end, there are female threads for a buffer tube, a setscrew at the bottom that locks into the end plate groove of carbine tubes or serves as an anti-rotation device for pistol tubes, and a more standard appearing castle nut.
Installation is easy although I noted that the castle nuts would not accept my dedicated castle nut wrench. It took just a little bit of finagling to tighten both nuts. Locktite is very much recommended at both ends.
Opening and closing are fairly positive, assisted (and sometimes impeded) by a spring that takes something approaching the strength of Hercules to compress in order to fold the hinge. That's fine by me, I'd rather have too strong than too weak here. When open, there's a little bit of wobble but for the price there's nothing to complain about.
Overall, 1 star off for the odd sized castle nuts and the Herculean hinge spring - but on the basis of installation and brief use, I recommend this adapter for range toy use. I wouldn't stake my life on it though.
Verified purchase: YesCondition: New