I got one from GMAC in the uk, it was about the same price shipping included, but not really as nice as those ones you are talking about. Its really all in preference. I like them to better stabilize the barrel. Some people think that they dont really do anything, and that the steel breech barrel mounts/grub screws is all that really matters for stabilizing the barrel, but with the plastic barrel band, I noticed the whole top-end flex as you pump, and the barrel actually moves slightly up and down with each pump.. I dont like all that movement. Another reason I always stick a metal barrel band on my 13xx guns, is to simply replace a plastic part with some nice metal parts.. They look great, and add heft/strength to the overall gun. I'm not fond of plastic on any gun so i do away with and replace it in any possible way i can. I think its worth it, but its just my opinion.. they are expensive, but just because it is an intricate part to make , if you know anything about machining. Must take lots of steps to make those.. I think that those ones on the yellow are better than the gmac ones, and the bluefork ones are the best ones available, but you may wait up to several months for the blue fork one, while the ones michael Chvaka is selling on the yellow would be quicker to get.