dossauce

Welcome, what part of VA are you in?

Agree with alot of points. I see no reason to try carbine buffers/ quarters. I'll build it right the first time.

Yeah i've noticed mag changes are rough. I wonder why pistols dont have that same issue with last round. in theory it should be the same amount of energy to cycle. Slide weight vs bolt weight. I wonder what the differences are.

Nice! and that shows the extractor. Thanks!. How has it been running for you? What trigger are you using?

Huh, interesting. Thanks Bwikel, i just assumed there would have to be a bolt. Stealth, yeah I'm really leaning towards a New frontier side charging upper. Just trying to figure out what lower. I have glock mags but only 17rnd + TTI extensions so I'd be buying mags either way. Figured why not build an sbr lower and have at it. Whats the deal with the trigger/ hammer combo? Do you need to use the GI hammer? Does the JP trigger reduce the pull if youre using GI hammer and spring?

I know the Bolt Carrier is different but what about the actual bolt. Most that I see do not come with the bolt but I'm not sure if its because of how complicated the bolts are to make compared to everything else or what. I know even major AR manufactures rarely make their own bolts because of how complicated/ many cuts are required. I have an idea, build it with a dedicated lower. When I build an sbr later on I can pick up a mag block and just move the upper over and see how it works. If it does then just shorten the barrel and I'm good to go on an SBR while using a carbine dedicated lower till I make that change.

Hey enosers, Apologies if it's been asked, I searched but couldn't find what I was looking for. A lot of parts threads but no detail into the why's. Like many of us I want to get into PCC but I would rather build one then buy and replace a bunch of parts. If I build one I would like to build it as an SBR but would like to use a standard ar lower so I can use it for a 5.56 sbr later on. Can you attach a dedicated 9mm upper to a standard lower? I assume you will need a magwell insert which is fine. I also see some 9mm uppers that look like they have universal ejection ports for 5.56 size cases, is there an advantage to this over 9mm uppers (besides changing the barrel, I mean performance wise, would one run better then the other)? What's the deal with triggers for 9mm bolts? does it have to be mil-spec? Do 9mm ar's use the regular 5.56 bolt? I see a lot of BCG's that don't come with bolts so my assumption is yes. I won't even ask a question about buffers because it's been beat to death. I'll search once I get a better understanding of how its all working. I assume PCC don't have gas tubes because of the fast burn rate of pistol powders? Ie not enough gas to push bolt back, therefore it uses the back pressure of the bullet to cycle bolt (meaning you need a heavier buffer/spring similar to slide of a pistol)? I would love to see a sticky PCC thread that explains the difference between a standard AR in 223/5.56 and 9mm(PCC). It's a whole new world with alot of people making difference parts that don't play well with others, the opposite of what we're used to with AR's. Thanks in advance guys and gals!

If there's a shop I always leave gear inside, the people are always nice enough to put it with their stuff out of the way

I checked the fit of the extractor, it seems good. I went ahead and moved the rear spring to the front of the Aftec to see if I can get better tension that way. It seems about the same but sliding a round under it hold it in well both ways. I have to shake it to get it to come out.

Found my email! Thanks!

10# Edit: 12.5#

Thanks everyone. I was wondering about extractor tension. How much should there be? I will check the fp block and see if the extractor slides/ rotates. I need to order some springs for the extractor I guess!

Is there any way for us to see the squads? Clicking on the link here it just says registration is closed. I may have to dig up an email but I can't seem to find it right now. Figured I'd ask ya'll first. Thanks!

Hey Revo, glad to see you can learn from this. That would be quite terrifying to see people over a berm! Good luck at your matches and I'm glad to see a MD who is being proactive rather then retroactive all of the time.

I'll start off with this: 1. Yes I did alot of searching, I can't find anyone else that has the same problem. 2. I am still fairly new to 2011's (2 mo) so I have alot to learn, but excited to do so. its is a STI Edge in .40 It has an aftec extractor with 1 spring in it (front spring removed) This has happened twice now, both at major matches (go figure). What happens is the fired case is extracted from the chamber, rather then it kicking out from the ejector it rides upwards in the breech face, the next round in the magazine pushes on the brass casing that failed to eject, gun tries to feed next round into chamber, slide tries to close but spent case prevents slide from chambering next round. Here are my thoughts: Next round in magazine is pushing the spent case upwards in the breech face before it reaches the ejector, therefore the ejector doesn't hit the case. Could be extractor is too loose? Or, ejector isn't making good contact with case resulting in case being pushed upwards rather then out (doubtful) The first time it happened I had no clue what to do, the RO was nice enough to suggest hitting the case with the bottom of a magazine. This was after I tried to push, pull, and karate chop with my hand to no avail for 30 sec. The spent case gets locked up pretty good in the breech face above the height of the ejector. This is all with the magazine removed from the gun. I can provide pictures to simulate if this isn't clear. Thank you all in advance, I'm still learning. I hope someone can help me understand why this is happening so I can fix it. I hate it when I gun doesn't run! It's only happened twice out of probably 700 rnds through the gun.