Albroswift

Had to go back out and check, still have have one from the last group order from WOA, 11-1/8" on the nose. The one I made was closer to 11-3/16". May be one of the reasons the barrels were $49.95. Anyway, After the re-drill to AR-15 spec above, 10-1/16"

Seems like some of the first Sig barrels needed a shorter one some of the brothers were saying back before the real buying frenzy started. Let me know, all yours.

I remember that, mine was actually 11-3/16. Drilled new hole to the spec on the drawing above, .295 off the shoulder, or just a little over 1" back from original location. Math works out, just getting rummy. I should assemble it completely, shoot it, then disassemble, degrease (again) , blast (again), and finish but boy that would be a lot of work! Just going to go for it. I do have extra new upper and clean new BCG so will double check with that but I think I'm good. Thanks Edit: Just double checked, 1.165" center to center so a little under 1-3/16", so 10" to 10-1/16" tube pretty close. Now I have an extra 11-1/8" to 11-3/16" tube now if anyone wants one.

Gas tube strange length, 10-1/16", if I measure to the center of the cam cutout However, barrel measures 6-3/4" from shoulder to barrel extension ring. (6-7/8" back side of ring where it hits the upper) Seems to be standard length for short barrels, and the Armalite hand guard fits perfect with these numbers. Maybe the Noreen upper has the cam cutout 5/16" further back and a 9-3/4" tube is correct? I have the whole gun de-greased and blasted, hanging on hooks ready for finishes so I don't want to start banging things around and touching oily BCG's but guess I should assemble with another upper and see. Try a couple BCG's make sure the upper is usable. These 2 highlighted dimensions match my sig barrel to a tee. Edit: Last post just for conversation, a little late not thinking straight. There is no large frame standard tube for this length, only small frame. Armalite calls the hand guard AR-10/ M15 6" Carbine but can't see that it fits any of their 10's. 9-3/4" vs 10-1/16" sounds quite similar to the 11-3/4" vs 12-1/16" tube for midlength (or AR10 Carbine?). AR-10® / M-15™ 6” BLACK CARBINE HANDGUARD WITH DOUBLE HEAT SHIELD

Made some headway on the upper, fitted the RRA carry handle and drilled the gas port

Turned these out to align 12:00 on a barrel in relation to the pin for drilling a new gas port. Bet they will work good for several other barrel operations, going to add set screws to lock things up, can easily flip barrel 90 or 180 with perfect relation to the pin. The 5/8-24 threads aint my best work but aligned and centered, should have bored a little bigger before running the inside threading tool. (Really could have just done a 5/8 bore without threads.)

I'm going to make one of the shoots, but this year hunting season blends right into a Mexico trip so no bueno. Maybe spring. Brother is trying a few out in his 45 Zombie Killer this weekend. I'll send you a couple to try out if you want. Not trying to compete with Slash or anything big time, just having fun making chips.

Rotating bolt delay?

x Kindergartners with color crayons compared to Rouge Gunn Works stuff but not bad for drunk retards.

When the zombies attack those without one will be sorry! I give him +1 on the WTF scale, +2 on the cool factor. +3 for barbed wire camo. -1 for doubting that I bored the cookie cutter, hee hee hee...

Brother came over this afternoon and finished up his zombie killer in 45 ACP. Not bad for the short bus crew... New Frontier Armory Slick side upper and lower, KVP BCG and barrel, Anderson LPK, 308 Cookie Cutter bored to 45 ACP, SBA brace, Sight Mark Laser and red dot. After I melted his last grip he lost faith in my cerakoting ability and left the last few parts black. I'm thinking the Cookie Cutter should irritate the fuk out of any fudds at the line. Like to put one on a 300 WBY or Ultra Mag just for fun.

Copy. I can do that. Thanks.

It's from Armalite, not a knock off.

Any idea how hot an AR plastic hand guard can go? is 250 deg f too much heat?

New Frontier Armory has 12.5" and 16" barrels in stock, just grabbed a 12.5" for a future build. Already have a lower and maybe an upper, if not plenty of regular uppers laying around. .

308 Commando. Bout got everything rounded up. RRA carry handle about 1/4" overhanging the charging handle but I probably have the technology to fix that if it bothers me. Noreen forged receivers Armalite AR10 recoil of course. 12.5" Sig barrel's shoulder exactly right place for 6" Armalite handguard, just need to drill port in the correct location, maybe plug the old one, maybe it will seal itself up without any messing around. Fake suppressor bored out for a sound forwarder. Pin that to the barrel. Nice lightweight handling forend Maybe getting ahead of myself, but thinking of going with cerakote in a desert camo color scheme

I think about it differently, instead of trying to hit the correct port size right off, start with one big enough to be known to work, and then back off a little until tune is perfect. on my 12.5 I switched out my recoil system from a SB3, 7-11/16" tube, EA1095 spring, 3-1/2" buffer to a Tailhook Mod 2, 7" tube, Sprinco Orange spring, 2-3/4" buffer, and all it took was a couple of clicks and all sweet again. Never have a problem with AGB going out of adjustment, and if you initally adjust them from wide open back as @98Z5V recommends you don't burn very many rounds at all. For me it works.

20 year old EDC Kimber Ultra Carry gets some love. (Posted this on the other forum but might as well show it off here as well) Gloss Black Cerakote over parkerizing on the slide, Graphite Black Cerakote on the frame.

Once I have the gas and recoil tuned, mine shoot 150-180 gr without ever messing with the AGB. If your system was borderline, bullet weight could make a difference. I would think lighter bullets take slightly more gas, but I could be 180% off on that.

Go real slow and easy, lots of lube, wouldn't hurt to put a dowel in the bore. the slower you break through the cleaner the hole will be. Do you have a drill press?

Following along for fun. @thossoma@pm.me Don't be surprised or bummed when you purchase a 308 premium quality craftsman build crafted with high quality materials and backed by a lifetime warranty, and it don't run. Unfortunately it's common. Fortunately it's not that expensive or hard to fix. We'll get you running like a $hit through a goose but we need lots of information to digest.

Order that poop ahead of time. Just like our AR's, have some spare parts in the bin. 1 extra cutter, a few of those screws made out of the softest metal known to man, a set of the guide buttons/ bushings minimum. Brother borrowed mine and router got away from him a little, bounced around, and flattened the sides of the guide bushings. Same brother (Noticing a trend?) seems to be hard on the cutters, don't think he quite has the whole "ease into the cut" thing figured out. I always have a spare cutter set in a spare arbor, and another couple un-mounted cutters. +1 on the vac attachment. I haven't noticed the need for the cardboard, Wax sounds like a great Idea, I use tap magic for aluminum, been using it on the lathe and mill as well but will try some wax. Have the router and vacuum on a foot switch makes for a good setup.

Thanks, @msgriff Exactly what I wanted. Kinda funny that some the most commonly built guns have no drawings online of the uppers.

Hello, All Can't get out to the shop and check right now, anyone know off the top of their head what the difference from centerline is between 308 and 223 gas tube hole in receiver? Thanks-- Al

Not seeing them. Guess I should have mentioned AR308...