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Best this to do is update your profile, list your "location" as "CA" - and it's pretty clear to anyone here where you are and what you're dealing with, rule/law wise.

Hank is a badass... She rocks... @Cliff R, you need to log out of the board, and log back in. I'm just sayin'... There's something waiting for you when you do that...

That 6 15/16" internal depth is the REAL measurement for the Armalite M15 (AR15) spec, and it's actually correct. Most manufacturers can easily use 7.000" internal depth, and it causes Zero issues - so 7.000" internal kind of "became the standard" because so many companies just went and did it. That extension is good to go. 2.500" long buffer is what's required for that extension, running in a .308AR. It has an aluminum body (I can see that), so it's max weight can only be 3.8oz, as it will onlt fit two tungsten weights. Only way to make a 2.500" buffer heavier is to use a stainless steel body for it, loaded with both those tungsten weights. The spring - Don't know. I can say that Fulton Armory is only gonna match up that spring for that system, because it works. Whatever coil count they're using for that length, and wire diameter - Fulton (and Clint McKee) wouldn't use it if it didn't work, brother. It's like the real DPMS LR-308 carbine springs - whatever they did, it worked most of the time. Not every other copycat company did that, and just tossed whatever AR15 carbine springs in theirs, and that shiit don't work. So, honestly, here's what I'd do, to try this out - and I've done it, too, it works... You have two tungsten weights in that bugger you have. BUY a DSG Arms-brand 308 carbine buffer. It's 3.8oz, too, but it's a stainless body with regular weights in it, and it's $22. You get that, you cross your tungsten weights into that DSG buffer body, and it comes up to 5.15oz. Close enough to work right. Run that thing with a Sprinco Orange spring. Your recoil system will work. For about $40, total - because you already have some good parts to work with. Here's the buffer I'm talking about - Shiit, it's out of stock right now.... This is it, though. https://dsgarms.com/lower-receiver-parts-dsg-4201-0021 Here's the Sprinco Orange spring, at Primary Arms - but it's out of stock right now, too... https://www.primaryarms.com/sprinco-ar10-orange-extra-power-carbine-buffer-spring Armalite AR-10 Carbine Recoil System night be the way to go right now, considering that. It WILL work. But, what I gave you is the way to fix a 7.000" extension recoil setup for a .308AR.

Plug your info for your load and gun into JBM Ballistics (free online program), for that 25 yard zero. Look at what is says the drop is for 100 yards. That's what you need to zero for, whatever the plus of minus is. Zero that, at 25 yards, and you'll be on at 100.

Breast Stroker would have a heart attack... Well done, man.

Full30 is a badass place to be, and a great backup for stuff like this. i got Albro's msg there, too - but you fuckers fixed it too fast for me to let anybody know...

^^^ This.

Jabs. When you can work in the jabs. That makes the fight...

That is really, honestly badass, brother. That whole post is fucking amazing. I know for a fucking FACT that you've got that Caveman Shiit down to a science, too.

Tell me again about your process for cleaning your guns?...

Perspective, brother. That's all it is. If it's got wheels or tits, I can ride it, drive it, or make it squeal...

You pitched a straight-down-the-middle, that got crushed over the Green Monster by a hundred feet... Well done... I got sucked in...

WAY wrong question, from the woman's perspective, brother. What the Woman wants to know is pretty simple... "Honey, does this tire make my ass look fat?..."

You're WAY more than that, brother. Oh, don't get me wrong - You ARE silly as fuk. That's not even questioned. I don't even know why you posed that as a question in the first place...

Ron, my brother - you are amazing.

Indeed, you can... Lesson 65b is a mo-fo...

Savage makes great bolt guns, brother - you did well with that one. That should have the Savage Accu-Trigger in it, which is a trigger "that doesn't need to be replaced."

Rene - if that guy lives in Cali, and is trying to stop people from cutting wood on his property - he's probably not in any city limits... If he somehow is, it's a pretty rural "city," and those LEOs would understand that. Big trees aint's cheap, and neither are smaller ones. That kinda shiit should be straight up Grand Theft, right there.

Gas tube length is good. Ejector is a little square, but not what I've seen that causes problems feeding from the right side of the mag - but it might be. If this was my own gun, and I was having your problems, the first thing I'd do is round off that ejector - not take any length - but I'd blow that thing down until it's round, and a good, smooth radius from the top down. If it was my gun. I'd do that, then shoot it again. The marks in your upper are telling you that you have an issue feeding from the right side of the mag. Do a test for me. Live fire. Load up the mag so the top round is on the left. Chamber it and Shoot it. tell me what happens. Then shoot it again (top round will be from the right, next one up) - tell me about that one, too.

Very valid points - and you have to look at this - HERE - from outside your perspective. Sure, people in Cali own ARs. Sure, they do all kinds of things to them that aren't in compliance with Cali Laws - I get it. Sure, you might be shooting next to a Cali LEO - and HIS SHIIT looks illegal, too... - but it's not. He is LEO, and has an exemption. No joke. You, as a private citizen, non-LEO, and that active LEO - two different worlds, right there. Blame your legislators on that law, or set of laws. Now, you can ask whatever you want here - telling us where you're from greatly alleviates headaches like this thread. Right from the beginning. Don't think that most people here can give you accurate information on Cali Gun Laws, though. Not even close. If you really, seriously want information on Cali Gun Laws, on the world wide web, then you need to be asking those questions on CalGuns.net. No joke, there are gun lawyers there, as members of that board. If you need help getting your AR15 or .308AR running - no matter what caliber it is - we can fix it. If you need legal advice on building your gun, and you live in Cali - you need to be asking those specific questions on CalGuns, and not here. THEY rule, on that, and THEY are the subject matter experts on making legal guns in California. We make guns run. We don't make legal guns in states that hate 2A. That's not our specialty, here.

Love it, Albro - that is excellent info. I'll be linking this post whenever appropriate - which is often.

Not really intentionally, no, you didn't. Unintentionally, I get it - you want to keep your information to yourself. However, in order to get decent information TO you, we need information from you... In this day and age, in this country - we need to know where you live, in order to get decent information to you. It's not because we want to raid your house and steal al your hardware, either. There are WAY TOO MANY restrictive states in this nation, as fas as 2A goes. Off the top of my head, CA used to be the king of it. I now think that NY is the worst for 2A supporters, and that flipped in the last year. MA, NJ, CO, IL, CT - they're all bad now, for 2A. WA is betting better, but absolutely sucked for a bunch of years, for certain things. So, having stated that - with you asking for specific 80% info, and you live in Cali... That excludes a very large portion of this board, regular members, that can help you out. My question is - had I not directly asked you where you live - when were you gonna provide that info? It should have been in your Intro Thread that tells us all about yourself, so we know what we're accurately working with here. Does that make sense? You should see what we deal with on this side of the fence, here. Different perspective, from you seeking information. I just want you to have the best info that you can, to get you running. I can't offer legal advice for your state, though, and that limits what help you'll get. There's a hellish-detailed thread here, in the 80% section, on making an 80% .308AR lower. User Lane knocked his project out of the park, and he's in NY State. Find his thread, it's packed with info.

You're jamming rounds into the upper body, below the barrel extension, and it's on the rounds that feed from the right side of the magazine... Can you post up a picture of what your ejector looks like? Angled shot of the bolt face, and the ejector. Ejectors with squared off faces have trouble feeding the rounds that come from the right side of the magazine. I can see on your upper where the bullet noses are being jammed into the upper, and it's on the right side. You've had a couple on the left side, but that right side looks like it's eating the ammo. Good pics, by the way. Get that requested pic in here of the end of the gas tube. Need to see where it ends, in the upper receiver. Straight down pic into the upper receiver, with the BCG removed.

You have to register that one, right? Just like a normal lower receiver? Or, am I wrong on that... I'm not up on Cali Gun Laws these days, because they literally change every day...

He's a jackass, but maybe a slightly smaller jackass than I am. Well, no. He's a bigger jackass. But, he's loved.