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I'm quite surprised that none of the instructors at that course said anything to you about your scope placement. If you'da come out here to shoot, that's the very first thing I would have pointed out to you, and made you change, before shooting anything out here.

That scope is WAY TOO FAR BACK ON THERE... Way too far. I hope he comes back on here.

Completely forgot you were the guinea pig on the WC ARC barrel, brother! COMPLETELY!!! True to WCs offerings, the damn gas port was too small. Expected, these days - the barrels are badass, but they need to fire the "engineer" that tells them what the gas port size needs to be. Where's that other know-it-all guy that was in here? He hasn't been on here in awhile... gladly...

Just let me shoot it sometime...

Yep, they'll work perfectly.

Just saw this, so it's an update on the ARC... Wilson Combat is now making a 6 ARC 18" barrel, midlength gas. It's currently out of stock, and I've never seen anything about it before on the WC site. I was trolling for 7mm-08 barrels. I don't know how it will be, but I know it'll be damn accurate. All my WC barrels just shoot lights-out. Another option, down the road, if you're thinking about dipping your toe into the ARC-pond. https://shopwilsoncombat.com/BARREL-6MM-ARC-TACTICAL-HUNTER-18-FLUTED-STAINLESS-GLASS-BEAD-1-75/productinfo/TR-6ATHMG18FT7.5/

You're very welcome, my good man.

It's good to see this in there, stated, with the pics you posted. At least AP is catching on that the AR15 rifle gas tubes are too short, and they've included/sold a gas tube that's probably 15.5" (the Armalite AR-10 rifle gas tube). I'm glad to see the realization, in their part, and fix that.

Your gas tube is fine -leave it in there. You have a known, verified, high quality receiver extension. You can use any AR15 Carbine buffer that is H3 weighted - it'll be 3.250" long, and that's what you need for that extension, but makes sure it's H3 weighted - that's the 5.4oz buffer. You need one of two springs, either the Armalite EA1095 spring, or a Sprinco Red spring - either one will do the job, admirably. On that barrel profile, you must have a gas port diameter that's 0.096", or very, very damn close. Fix those things, and that gun will eat any ammo you throw at it. Always start the gas block Wide Open. Wide open. After the gun runs right, and it broken in, then you can start dialing it down to your desired recoil, and functional level.

Those look AMAZING!!!

My 12.5" Grendel was the truck gun, until I built that ARC. I put that little Grendel together with a Leupold Mark AR 1.5-4 Firedot-G SPR scope on it. Shocking to me, I took that thing out to 850 yards on 4 power, and it did it repeatedly - just dial 10.6 mils, and get after it. Surprising little gun. It became the truck gun right away, after that. When I built that little ARC - based on what I saw with the little Grendel - I put more scope on it. I used the 2-12 Athlon Helos BTR Gen 2 scope. As soon as it was broken in and shooting well, it replaced the little Grendel as the vehicle gun.

For a free-float, this one is light, not a cheese-grater, versatile, and pretty strong: https://www.aeroprecisionusa.com/m5-atlas-s-one-m-lok-handguard

The 14.5" 5.56 gun has an O-Light Odin light on it, and the 12.5" ARC has an O-Light Odin Mini light on it. There are a few different .308ARs floating around. First, I wouldn't use .308 Win as a home defense round. I'd never be able to tell how many walls it'll make it through, and where it would stop. It would probably clear a bunch of walls and leave the house. I'm looking for The Box O' Truth info on .308 Win or 7.62 x 51, but can't find it right now. It'll turn up. There's a 12.5" .308 and a 13" .308 that I'd consider as truck guns, but to be used somewhere with more distance and/or need more power over a 5.56 gun. The ARC takes that all away, just in the cartridge and it's power and range capability, and it's in a much smaller, lighter package. That relegates the short .308s right out of the truck. Same thing for the 16" .308. There's an 18" .308 and an 18.5" .308 (the Mk 11 gun). The Mk 11 is for distance, and it does exceptionally well at that. However, the 20" .260 Rem blows it away at distance. There's a 16" .338 Fed gun, and a 16" .358 Win gun. The .338 Fed is amazing, loaded with 225gr projos, and shoots softer than the 16" .308. I'm still sorting out that .358 Win gun - that damn thing kicks like a pissed off mule. the recoil system is getting replaced in that one. I'd use either one of those guns to go after pigs/hogs, or any other thick-hide animal. That's just my mentality on it - not worth much, but that's my reasoning.

Good work.

On iron sights, there's all kinds of zero's out there. For 5.56, the 50/200 is pretty common. the 36-yard zero is legit as all getout. That's for iron sights, though. For magnified optics, I always zero them at 100 yards. That's very common, and it helps when you're making charts for other distances.

^^^ I'm running that exact same mount on the 12.5" 6 ARC gun, and love it on there. 44mm objective lens clears well, and keeps it pretty low. My go-to mount to keep scopes as low as possible is the LaRue LT-158. That mount is available either in 1" or 30mm, has 10 MOA built into it, and has a centerheight (above the mounting surface) of 1.46". Most mounts are 1.5" above the mounting surface. I've used that mount on alot of my guns, and it's close with 50mm objectives, but still clears them and they don't touch the rail, even with Butler Creek flip-up covers on.

My go-to house gun is a bad little 14.5" 5.56 Carbine, fed with 75gr HPBTs. The preferred truck gun is a 12.5" 6 ARC gun.

We are already talking about setting up as much as possible out there, and running at least 2 stages of shooting. I'm working on gathering more targets. I have a bunch, but still need more. So, anyone coming to the shoot, bring all the steel you got.

Indeed. If the medium will still charge, fully collapsed, on the M4, then you'll be able to charge the .308AR when the medium is extended to shooting position. I'm pretty sure you could do that on the Large as well, on a .308AR, but you'd probably need the stock at a certain minimum position to charge it. I'll round up pics and try to determine measurements, and try to show what would clear.

As long as she likes it, and shoots it. I'm not gonna let it go to waste, though! If mine is down, I'm grabbing this one!

^^^ Exactly what Pete said. Of course you can lap a Cerakoted upper receiver.

Better show up wearing the hip-waders, brother. We don't play. The smack-talk is a deep pond that you don't wanna drown in...

We weren't so excited about it today - but we got it done. I must say, there were alot of the local big-names that did not do as well as we did, today. Which was rewarding... for the efforts that have gone in, over the years...

That WAS WAY off... but that wind WAS kinda vicious that day... We were purely in "experimental mode" with that stuff... What's wind over 12mph?... That the - wind...

I'll post these in the order that we have to shoot them, every month. we sign up Squad 4, so we shoot this course in order of 4, 5, 1, 2, 3. I'll list the stages now in the order that we have to shoot them. 4 and 5 sucked this month - longest distance, from the highest positions on the hill, and the most impact from the biotch-wind that we had. Click 'em ^^^ they get bigger, so keep clicking them until you can read it all. Most times, you click them 3 times, and they're big enough to read...