Colt or FN could produce A1 profile barrels in 1:7 and I think they would sell like hotcakes. Doubt we'd see 1:12, but who cares? It'd still be a new, replacement part, not an original, 1965 barrel. I agree with Cdenmark, although I did spend $100 a few years ago for a transitional bolt catch for my XM16E1. Since then I've seen exactly one for sale and it was snapped up. Recently I got what I considered a good deal on an original XM16E1 BCG, with the original FP retainer, like new - seller had bought it from Bill RIcca over 35 years ago and never fired it. He could have sold it for more, but didn't feel right. I'm sure he made money on it, and it was about where I'd value it, seeing how rare they are - probably rarer than 601 BCG's if the frequency (or infrequency) of them coming up for sale means anything. I think $250 was a fair price for it, especially as nice as it is.
I was in this game early enough to have a nice 601, but I decided to leave them to others. Nor did I speculate on 601 parts, which I could have easily done, and made a nice profit. I've said it before, and I'll say it again, this 'retro thing' is not about making money. I don't blame a guy for making a little when he bought parts several years previously, especially when he uses the money to fund some other retro project. Going for top, eye-gouging profit however, just isn't right. I recently sent a set of HGs to a member - have sent a number of parts from people, and received some cool stuff as well. Peter_Sam for example, gave me a fully curved (commercial) magazine some time back that I've been saving for an XM177E1 build. He could have slapped a Colt florrplate on it and misrepresented it on GB and sold it for a bunch I'm sure.
I recently made a small profit on a 14.5" ltwt barrel I sold a member here - a barrel I hated to sell, but decided to go with 1:7 - I contacted him and told him it was for sale on the EE - he made me an offer and I took it, knowing damn well I could have gotten well above what I was asking if I went to GB with it. I threw in a brand new gas tube because he needed one, essentially wiping out my profit - I may have made $15. So what? It makes me feel good that someone will be thrilled to have that barrel and get themselves a nice build. We aren't all as well-heeled as some members here with multiple, or original Class III weapons. I'm lucky to have the builds I have, and helping others reach their goals is what this forum is REALLY about, and has been since the beginning. The 'Pay it forward' thread for example, shows just how generous members here really are. You're not going to find me posting there much because truthfully, I don't have a lot of extra parts left, but I have sent a lot of misc. stuff out over the years, and have received some very cool things as well. Hal143 for example, saw a double DVD set of VN documentaries and got extras - sent me one, gratis.
This is the kind of things friends do for each other, and I've never met most of you guys. What impresses me is what everyone here does for each other, even for new members. That's why this forum is so special. What pisses me off is someone coming here, picking our brains, maybe scoring an elusive part they need to finish, then deciding they don't want a retro and instead of offering it up on RBR, they GB it for a large profit.
I have zero regrets for sending out all the things I have - most of them didn't cost very much, I mean, what's $10 or $20 here and there, and it made me feel really good to be able to help out a retro brother. It's especially rewarding when you see a guy post pics of a build he finished because he got a part he needed from you. I'm not saying don't sell you stuff, I'm not saying don't make a profit, but lets not stoop to the level of oil speculators and ruin things for everybody. Rant over.