CRracer912

Could you just install a gas block in reverse to seal up gas port? I know some that do this to make a single shot out of their AR.

Edit to add that I believe the ATF also just changed the way they will receive it's for determination. As they will now require any item to be installed on a firearm and the firearm sent in for evaluation. So in the bumpstock instance, they'd now require it to be sent in, attached to rifle for evaluation. Then you run in to what happens if they determine it's a machine gun, and the sender wasn't class all, is the entire gun confiscated, sender now in legal trouble?

Well, the government can change its mind on a whim.

Ok, was just curious. My son has an all gen 2 upper and lower PA 65, I hadn't seen or handle a gen 1.

How does the gen1 upper mate up to the gen2 lower? Any pictures?

Anyone got much use out of these? Thoughts/impressions?

I won a larue barrel and chose the 18" predatAR, so one of the lowers will finish that build. I've got a 24" Grendel upper that needs a home as well as a 7.62x39. I have a bad habit of buying random pieces that interest me that are on sale, then feel the need to make it complete...

You had better luck with live chat than I did. Being in CST, I probably tried it before they were open. I've got some ar15 lowers coming from them, first time ordering from them(Ceratac), supposed to be here Monday. When I get those done, I'm gonna get the AR308 kit. Should go fairly smooth since you all covered the need for heavier buffer and adjustable gas block. I'll just mod their gas block as you did. It'll be my first 308 in the AR pattern, and I'll be doing a lot of comparison between dimensions of the upper/lower with that of my son's PA65, rail height, TD pin location etc.

As was mentioned by the OP, Ceratac offered a kit for the lower to use with the 5D tactical ready jig pro. Thought it was odd that Ceratac listed it as 'ceratac'. A little investigation on 5D's website showed that the mult platform jig pro does not accept the SR762 lower and that they offered an adapter kit for that style of lower through Ceratac. I only mention this as the original thread that lead me here was questioning what actual lower Ceratac was selling. I saw it was figured out throughout that thread, but wanted to add what I'd found direct from 5D tactical.

Ok, didn't think about the hand gaurd attaching points being reason for you having to add the second shim, makes sense. You're right, 10 bucks ain't much to know off, I've just got a bunch of mil spec triggers from my ar15's, I'll never use them. If omitting it doesn't get the USA hardware, I'd get the fcg.. I'm in the process of browsing threads now. Thanks!

Hi all, first post here. Signed up just to thank the author of this thread for all this information on the Ceratac 308 kit. I've been wanting to do an 'ar10' for some time now. My oldest son has a PSA PA 65, but I think I'd just as soon build and 80%, and I really like the price point of this kit. I use the 5d tactical jig, so I'd probably just get their kit for it. I was curious about some of their options. The lower kit has a USA upgrade and a no fcg. I don't suppose the no fcg option would include USA pins and springs. As for the hand gaurd, I take it that the barrel nut has to be indexed for the gas tube, did I read that right? I think I read in the other Ceratac thread that you could use an armalite or dpms barrel in any ar10 upper, but I was previously under the impression that those two use a slightly different barrel extension, any input on this?(in case of future barrel replacement) Anyways, awesome thread, answered a lot of questions about the kit that I had floating around in my head.