98Z5V

Bad news, brother - DEFINITELY DIFFERENT. That first Pic slot on the Matrix is easily 3/8" further forward when compare to an Aero Precision 308 upper. Aero in the front, Matrix in the back. Can't find my calipers right now, but the last pic is the difference in measurements between the back of the upper tang and the edge of the first slot in the Pic rail.

Buffer system is right, or very close, for a.308AR. That gas tube is too short - it should come back to the middle of the port opening for the cam pin, as seen is SS's photo. In your photo, it only comes back to the very opening of that cam pin port cutout... If it's midlength gas, you're screwed. If it's Rifle gas or Carbine gas, you can pick up the Armalite AR-10 gas tube and correct this issue. If you already have the Armalite AR-10-lengthed gas tube, that barrel is incorrectly made...

That Centurion rail is badass - I've always like those rails, and for some reason don't have one on anything... Would look like this, Matt...

I can check and report back tomorrow, brother (Wednesday).

Matt, 68 and 69gr OTMs are going to shoot very well through that barrel, but the 75 and 77gr OTMs are really gonna shine. That's where you'll really see how well the little bullet can do. Rails and handguards - what are you thinking of? Full-length top rail and customizable on the sides? Go M-LOK. Shape? Need to be small diameter, or almost square-ish?... Many questions...

Phase 5 makes a setup for .308ARs, I'm just not sure if their bolt catch will be compatible with the GII. Only way to find out is to take your bolt catch out of the rifle, and side-by-side compare it to the Phase 5's dimensions. DISREGARD - they state that it will not work with the GII, specifically. http://phase5wsi.com/extended-bolt-release-v2-.308.html

Stack 'em up and take a picture, m1911, you need to... On top of each other... Trust me... Barrels pointing to the right...

^^^ That's the answer... If the barrel isn't drilled right... So, the barrel extension has to go on the barrel FIRST, because of the feed ramps in the barrel extension - they center everything. That thing gets torqued on at 175lb/ft, to the barrel. THEN the extension (and feed ramps) are aligned, and that's the CENTER of the barrel, and the rest of the machining can take place. After that, the gas port gets drilled ON CENTER with those... It's not gonna be the MagPul rear sight that's off - but if it is, MagPul will want it back to check it out, and send you a new one before you even take that one off your rifle... However, in that pic above, that rail is NOT centered on that upper receiver... Does the rail have alignment pins to center it? WITH the barrel nut?That can throw the whole thing off, right there... Might be that all is machined right, but the barrel/barrel nut is not properly installed - torque dictates that if it's gonna be off, then it's gonna be off in the direction that HIS is off... I'm just sayin'... Look at it close...

Sorry for your loss, brother -almost the exact same thing happened to my aunt in 2010. She was very close to us, as she had no kids - we were like the only kids she had. Sad times. God Speed to her, and you as well.

YOU'LL KICK TIGERS IN THE FACE!!! YOU'LL BE ONE SCARY MOTHERFUCKER!!!

Point 'em out. Please provide direct internet-clickable links to those discussions, as well. OLD Mil-surp 7.62 NATO chambered WAR-SURPLUS RIFLES should damn sure NOT be firing any modern .308 WIN ammunition. Period. Please provide information that states otherwise, on modern chambers. I'm not calling you out, or trying to start shiit - don't think that. I'm trying to STOP shiit from spreading... If you have links that state otherwise, please provide them, because they ain't accurate.

Issue #2, I'd suspect that mount, until you know more about it. Damn sure it ain't the Aimpoint, man.

BCM fukked that one up... I'm just sayin'... They can DO NO WRONG... but they did... Happens, even to THEM...

That rail is off - you can see it in this pic. Left side is aligned based off the upper rail, but the right side is way off, based on the upper rail - it's not centered, and it's in such a way that it makes sense that the rear sight is cranked to the left to get it to shoot straight. That rail needs realigned with the upper, fo' sho. Then it needs re-sighted. Check the pic, and you can see it now - left side edge straight, right side edge WAY off - that's enough to toss off that rear sight like it is...

Did you read my response,and search the info?...

m1911, do you shoot those ones as much as you shoot the LaRue rifles? Ever consider letting them go?

Both those look like the LaRue lowers, at least - those the one you don't shoot anymore? List them for sale on the For Sale section here, and let them get some good use.

You guys are screwing this up for me, here...

^^^ Damn straight.

What a Warrior. Rest in Peace, you hellish Leader.

What's the hang-up here? With the LaRue having a 20-MOA setup? Just asking...

That's not even gonna matter, on a modern firearm. Not in the least. Research shows that the GII bolt firing pin hole is a little large, and you commonly get cratered primers. Search on that set of keywords, and you'll find out more about it.

Uuuummm, Yes. That would have been Matt Cross...

This one?...

Oh shiit!!!