98Z5V

6 15/16" doesn't meet the 7.000" internal requirement for an AR15, brother. It's short. Can that thing, for real...

Glad you're doing good, Brother Jeff! Don't let Char take advantage of you in this condition. Watch her like a hawk, man!

Shoot, brother - I'm just glad to see it running, like it's supposed to run. You did well on that gun.

Was the gas tube installed, when the nut was torqued down? Did it twist the gas tube in the upper? That'll stop the BCG from going into battery, for sure. When the gas key hits the gas tube end, because the gas tube moved. Check the gas tube, and see if it's centered in the upper. Remove the bolt from the BCG, and see if the BCG will go all the way forward, with no bolt in it - the charging handle will still bring it back, don't worry about that. Charging handle doesn't care if a bolt is in the BCG or not. Pics...

I highly doubt it. The AR15 Carbine spring should be 39 coils, 11.25" relaxed length, 0.072" wire diameter, and compress length of 2.808". The Armalite EA1095 spring ain't no AR15 Carbine spring, that's for sure.

Both those internal depths are bad, and won't work for anything. It eihter needs to be a 7.000" internal depth for an AR15 extension, or 7 5/8" internal depth for the Armalite AR-10 Carbine extension (and known like parts). Those two numbers you guys reported above won't work for anything. Well, they'll make great paperweights.

Armalite AR-10 Carbine gas tube is 12 1/16" long.

That was excellent...

34 coils and 13.75" relaxed. 0.072" wire diameter, and it compresses to 2.448" before coil bind...

^^^ Roger is THE man.

Good job, man - you will NOT be a victim of Lesson 65b. For those that don't know that particular lesson... Lesson 65b - "You snooze, you lose."

I don't think those peep sights will correct any vision issues - the smaller the rear peep you're looking through, the more it will focus your vision (attention) on what you need to focus on, which it the front sight post. Basic Rifle Marksmanship comes into play - rear right is fuzzy, front sight post is in focus, target it slightly blurry/fuzzy. That's proper sight picture.

Good work, man.

The Armalite AR-10 Carbine Gas Tube (Armalite Part # 10007005) measures a true 12 1/16". That's what you need. I was just pointing out the terminology difference between these platforms. You ask a vendor for an Armalite AR-10 midlength gas tube, and you're either getting a gas tube for an AR15 from them, which will be the same exact thing you have now, or you have a SMART vendor that will send you what you need, not what you asked for... It's OOS at Armalite right now, per the website, but you need to call them on the phone to get accurate inventory. However, it IS in stock at DSG Arms right now, as I type this... https://dsgarms.com/arm10007005

I was gonna say, 285 is the minimum.

Projectile weight will make a big difference, even with a 30" barrel. What load are you shooting? Supersonic/subsonic has alot to play with this one. I found that out with hand loading them.

Damn, I'd take Krieger's recommendation on that, brother. Seriously. With what you're building, I'd ask them first. You're building this from the ground up, completely, it seems. See what Krieger says about that one. For real. What action?

Before you jump to that - Armalite doesn't make a midlength gas tube for 308s, and you never gave barrel specifics. You 16" Carbine gas here, or 18" Midlength gas?... Gotta know what you have right now... If you're running AR15 midlength gas, then you need the "Armalite AR-10 Carbine Gas Tube" to solve that issue. .308AR rifle buffer (5.200" long and 5.4oz), Any old AR15 Rifle Receiver Extension, and Armalite EA1095 recoil spring. That's gonna work in any MagPul Rifle Buttstock. MagPul includes the vented buttstock screw to work with those parts.

That's not the same primer previously mentioned, and the powder wasn't mentioned in the first post. That's my 45-70 powder, right there. I'm just sayin'...

@Matt.Cross

This pic was 33:07 in that vid. Which is great. We were shooting some angled shots at the last Spring Shoot, 2018. Spring Shoot '18: There's lot of vids online about all kinds of this stuff. We get out and do it. Get out to one of the shoots. The Spring Shoots are much smaller, and are the "proving grounds" for all the stuff to try during the Fall Shoots - which are the MUCH larger gatherings.

You guys needs to come out to a Fall Shoot. I kid you not. We shoot, nightly, at 450 yards. Last Fall Shoot we shot to 845 yards and a little more. I have new surveyed positions now, to 1002 yards, and it's not stopping there. What they did in that video above - we just did, last October. @Matt.Cross and I are gonna do it again in March '19, and come up with more stuff to do, at new ranges. 2 years ago, we had a brand new shooter center-punch the target at 660 yards. Hell, several new shooters did it.

What diameter barrel are you trying to fit in this thing, that the MagPul stock won't fit?... Reason I ask is...this Rem heavy barrel fits in a MagPul stock, no issues.

HAHA! They threw Pastrana in there - he took the truck!...

That's pretty damn awesome of you, brother. Really is.