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ATFs website has suddenly become ALOT more confusing... I'm just throwing that out there. I haven't been on it in awhile, but it's pretty damn difficult to find information - that was readily available in the past - right now. Right now, it's tough to even find their definition of "Short Barreled Rifle..."

Here it is: atf-p-5320-8-chapter-2.pdf

The ATF FIRST fucked themselves on this "determination" by the very legal definition that they say is "What are "firearms" under the NFA?": This is their "Rifle" definition: Contained here, right on their website - I've saved a copy, right now, in case they wanna change it overnight...

After THAT kinda work! Damn! You need to tell your buddy that he can repay you in only ONE way... "GO downtown and get two blowjobs, and bring one back for me..." LMFAO!

How did you lose a whole week of your life, dude?...

Glen Seekins builds some very, very nice stuff. I have a crap-ton of it all combined onto one rifle. It's awesome - good job on that, brother - you'll love it.

Chicken wire and clothes pins are the way to go for hanging targets. Seriously. I learned that way back in '09/'10, when I lived in VA. Awesome stuff.

Might as well incriminate myself, while we're at it. One Man Skeet. Fuk it...

I'm just gonna go ahead and incriminate a certain board member right now. Even though this happened BEFORE their newest determination... LMAO..

The end of the "barrel" is internally threaded, and there's an allen bolt in it. Stops any "forward" direction of the blast from the BLANK AMMUNITION, and directs it outward, through the side ports in the barrel. Looks like I need to weld the allen bolt in place, and I'll be good. So, not to mention HOW many ways this does not fit the classification for a Short Barreled Rifle, but... * It fires BLANK AMMUNITION... * It doesn't have a rifled barrel - it's a smooth-bore... * It's not firing a projectile contained in a cartridge... The list goes on...

Awesome. Not finding anything about this in an open search. Nothing. Zero References. EDIT - Just found it on WEVO and ARF... http://www.weaponevolution.com/forum/showthread.php?8312-Can-Cannon-ruled-NFA-item. https://www.ar15.com/mobile/topic.html?b=1&f=5&t=1790231 Cannot find it on X-Products webpage... EDIT #2. Oh shiit - they put it on their FB Page... https://www.facebook.com/xproductsllc?fref=nf

YES!!! VERY GOOD!!!

I'm 300~400 rounds into mine now. Never a hiccup, not once. I just moved it over to the .338 Fed ongoing-build, so it'll live in there indefinitely. If I ever finish that damn thing...

Backwards, brother. DPMS puts a K at the end of the serial number on stripped lowers, only. If it has a K at the end, it started life as a stripped lower, and not a full factory rifle. :thumbsup: There's either a gas system issue going on here, or a recoil system issue (weights of buffers, or spring rate/length). OP, need more details. LOTS of details. As in, list every part of the rifle. Pics help.

I knew that beauty wouldn't last long.

That .243 is looking good so far, in the accuracy results. http://www.ruger.com/micros/rpr/standings.html

Hell. Yes. Glad she's running. Glad you didn't have to send it back to get it solved, too.

So... How does it shoot? :)

The "if you dare" is the pertinent part of my post above ^^^... You are, after all, the guy that claimed an accuracy improvement from a 0.60"-something group, to a 0.18" group. With two rounds... Your proof was two rounds...

Breast, shoot a 10-round group @ 100 yards. Post the picture. Normal cyclic rate, not 3 hours on the range waiting for cold-bore shots. Put that pic up, if you dare, and you'll have my interest. Video of it would be preferred. :)

Clint at Fulton designed this config a long time ago - LONG time ago. Criterion made his barrels for it. He dropped that barrel config, and Criterion as since released a version again. Between those two companies, they know what's up. And their port diameter was above 0.100"...

Skip the 0.0985" and just hit the 0.1005", brother. It'll run all the stuff you're shooting, then. Go right to it.

The Bushmaster Dissipator ran, well. I've never seen one, but I'd like to get my hands on one. I'd rip that thing apart and see what they did to make it work. The Colt M655s from Viet Nam supposedly ran, too, but good luck even finding a picture of that damn thing anymore - searches lead you to bullshiit that are not the M655s. You can get close with the M656, but it was suppressed... Same platform, but suppressed...

THIS is the point in the conversation where most "know-it-alls" come into it and say, "I'm 60 years old, and I'm a tool-steel fabricator machinist, and I've been manufacturing complicated custom one-off parts for 45 years. YOU DON'T KNOW ME!"... And, we say... "You never stated you had ANY machining experience prior to this, at all. Thanks for filling in that blank..." Don't be that guy. We've seen that guy before. And he still couldn't get his 308AR running...

Here's where you fucked up, man - so learn from it and move on. First, you built (assembled) ONE AR15, and then you think you're ready to tackle an 80% machining on a 308AR. You don't know the details of the 308AR, and the problems, but you think you can just jump right in there - you should machine an AR15 first, in the grand scheme of things, and see if it comes out all fucked up. If it doesn't function, stay away from the 308 version. At least, on the AR15, you have a standard to work from, and if it doesn't function, then you know the problem was YOUR MACHINING. Nothing more... Then, you jump into this statement: Just because a lower accepts Pmags doesn't have a single thing to do with a UBR stock. The Slash CAR-10XH buffer is good for the UBR, but you don't need a modified buffer spring - just the Armalite EA1095 spring. Slash even states that. Your statement leads me to believe you got your information from the internet, and not from research of the parts manufacturer of the buffer you're looking at. At that point in the coversation, you still hadn't posted the manufacturer of your upper and lower matched set, but you were looking for technical information. When you WANT technical information, you need to give technical specs for people to go from. You failed in that aspect. Badly. Next, you answered that - JTBILLET, for your upper and lower... You asked technical questions about a company that nobody has heard about, and the answer what right on the company's website - you were not observant, and didn't know what you were looking at when you posed the question. After that, you got a little defensive, and started slinging some shiit. Now, when asked by a member why you wanted to spend that kinda money on an 80% set, when fully machined sets are available cheaper, that's when you went downhill... ^^^ You fucked up, right there - and you probably didn't even know it. You've just been placed into the "I'm a Pompous Ass" Category with that statement. After all, you have ALL the experience of assembling ONE AR15 under your belt. So, you're a Pro... After that, you get even more belligerent, and ask Wash if someone pooped in his Wheaties?! Really? That's when I'd had enough of your shiit. At this, you have a couple options - and eating a big shiit sandwich is one of them. Admit your mistakes, and go humble yourself in a corner somewhere. Your mis-steps through this thread were just documented in my post, here, so you can read them and absorb them. And hopefully learn from them. At this point, the ball is in your court. I highly advise you to not act like a pompous ass, and act like this is not a big deal to you, and you can build your 308 AR easily, no issues - you have alot to learn. This isn't an AR15 parts kit. Good luck.