jtallen83 Posted November 13, 2018 Report Share Posted November 13, 2018 CDNN just put their 12.5 inch 308 Sig barrels on sale for $49.99 + $4.99 flat rate shipping. You will need a custom gas tube but other than that I built with standard parts, a D Wilson bolt headspaced fine. https://www.cdnnsports.com/sig-sauer-716-12-5in-308-1-10-chrome-lined-barrel.html#.W-oXj5NKjb0 https://www.cdnnsports.com/sig-sauer-716-12-5in-308-chrome-lined-barrel.html#.W-oXoZNKjb0 Quote Link to comment Share on other sites More sharing options...
jtallen83 Posted January 21, 2019 Author Report Share Posted January 21, 2019 They have the 308 version on sale again; https://www.cdnnsports.com/sig-sauer-716-12-5in-308-1-10-chrome-lined-barrel.html?___SID=U#.XEYJL1xKjb0 Quote Link to comment Share on other sites More sharing options...
suzukiray Posted January 22, 2019 Report Share Posted January 22, 2019 Read what it fits, NOT an AR10 interchangeable barrel. Or so the ad says. Quote Link to comment Share on other sites More sharing options...
jtallen83 Posted January 22, 2019 Author Report Share Posted January 22, 2019 30 minutes ago, suzukiray said: Read what it fits, NOT an AR10 interchangeable barrel. Or so the ad says. Used one in a build already, it's DPMS based just like the Sig 716 bolt CDNN sells. Only custom part required for a build is a $40 11 inch gas tube from WOA. See the details here; Quote Link to comment Share on other sites More sharing options...
suzukiray Posted January 22, 2019 Report Share Posted January 22, 2019 Cool!! Nice looking firearm!! Quote Link to comment Share on other sites More sharing options...
blue109 Posted January 22, 2019 Report Share Posted January 22, 2019 Well damn.... Quote Link to comment Share on other sites More sharing options...
blue109 Posted January 23, 2019 Report Share Posted January 23, 2019 @jtallen83 To clarify....this works with DPMS stuff, just need custom gas tube right? Because I think I need a 308 pistol all of the sudden lol Quote Link to comment Share on other sites More sharing options...
jtallen83 Posted January 23, 2019 Author Report Share Posted January 23, 2019 6 minutes ago, blue109 said: To clarify....this works with DPMS stuff, just need custom gas tube right? Yes, D. Wilson bolt headspaces for me on two of these barrels, I used the Sig bolt sold at CDNN in a D Wilson carrier. Had one barrel in both a Matrix and an Aero receiver with no function issues cycling by hand, built with the Aero due to the Aero rail not fitting the Matrix receiver. The gas block seating area is a bit short but caused no issues for me, I dimpled the barrel with my SLR jig and it sealed up fine. The gas tube was the only part not available off the shelf. Mine needed an 11 inch tube but since it is custom order anyway I would wait and measure it to be certain, can't imagine it would change on other brands but at $40 better safe than sorry. I tried the build having seen others on SigTalk comment that barrels and bolts on 716's are DPMS based, figured if it didn't work I had a spare for my P716, now I have a DI and piston 308 pistols. Quote Link to comment Share on other sites More sharing options...
jtallen83 Posted March 7, 2019 Author Report Share Posted March 7, 2019 On sale again for $49.99. Quote Link to comment Share on other sites More sharing options...
jtallen83 Posted July 6, 2019 Author Report Share Posted July 6, 2019 Back with more $49.99 12.5 inch Sig 716 barrels at CDNN, wonder how those builds fit the "pistol" findings https://www.cdnnsports.com/sig-sauer-716-12-5in-308-chrome-lined-barrel.html?___SID=U#.XSEE1uhKjb0 Quote Link to comment Share on other sites More sharing options...
jtallen83 Posted August 2, 2019 Author Report Share Posted August 2, 2019 Free shipping on these barrels today, $49.99 to your door Quote Link to comment Share on other sites More sharing options...
98Z5V Posted August 3, 2019 Report Share Posted August 3, 2019 5 hours ago, jtallen83 said: Free shipping on these barrels today, $49.99 to your door Mine shipped free several weeks ago, brother - which was a nice surprise. It was the only thing I ordered then, too. Quote Link to comment Share on other sites More sharing options...
jtallen83 Posted September 5, 2019 Author Report Share Posted September 5, 2019 CDNN has the makings of a shorty builders set on sale. Barrels dipped below forty left in inventory, don't ask why I know........... https://www.cdnnsports.com/ar308-remington-upper-target-receiver-quad-rail.html?trk_msg=ACQ9DH1SD1L4LAJ5F50GC39KP4&trk_contact=CCM1L42B6H11OTO9IV10FHBVDG&trk_sid=921N794RCJ29012O4L7KJQJ12G&utm_source=listrak&utm_medium=email&utm_term=https%3a%2f%2fwww.cdnnsports.com%2far308-remington-upper-target-receiver-quad-rail.html%23.XXFfei2ZPUI&utm_campaign=CDNN+Sale+9-5#.XXGUDihKjb1 Quote Link to comment Share on other sites More sharing options...
Albroswift Posted September 6, 2019 Report Share Posted September 6, 2019 Not trying to hurt anyone's feelings, but that upper and rail are butt ugly. So ugly I looked for a butt ugly emoji but no joy. Good thing I'm a southpaw or I would have one butt ugly slick side shorty in the works. And I just wonder, who is buying up all those barrels... Quote Link to comment Share on other sites More sharing options...
98Z5V Posted September 7, 2019 Report Share Posted September 7, 2019 8 hours ago, Albroswift said: And I just wonder, who is buying up all those barrels... Oh... That's pretty apparent... Quote Link to comment Share on other sites More sharing options...
shooterrex Posted September 7, 2019 Report Share Posted September 7, 2019 I just ordered another one. Tried to drill out the gas port just a little. Bit broke off just as it broke through. Gas tubes finally showed up. Would eject but not lock back or pick up next round. Cobalt bits will be in tomorrow. Any ideas how to get the broken bit tip out? Quote Link to comment Share on other sites More sharing options...
jtallen83 Posted September 7, 2019 Author Report Share Posted September 7, 2019 4 hours ago, shooterrex said: Would eject but not lock back or pick up next round. Cobalt bits will be in tomorrow. Any ideas how to get the broken bit tip out? Could we get a picture of the gas tube in the upper, showing its position in the cutout, and a length on the tube? Sucks when those little bits break off. Any exposed bit you can get ahold of? Short of that drilling it out is a slim chance, you need a real good bit and lots of patience, still a slim chance of getting it out without making the hole wonky. Had a machinist burn out a broken tap once, some sort plasma torch contraption, this was the late 90's, much bigger size than you are dealing with so not sure the process scales down, and it cost over $100, cheaper to buy another barrel. Quote Link to comment Share on other sites More sharing options...
Albroswift Posted September 7, 2019 Report Share Posted September 7, 2019 I've drill 3 now, drill press, very careful, very slow, very stressful! What size bit, and HSS? Cobalt? TiN? I've gotten things like that out before. If it just broke through and grabbed/ twisted off my first remedy would be to cut a piece of HSS drillrod of the next size down and carefully try to tap it through the rest of the way. If it's HSS that's broken off, cobalt will drill through but need to be set up very stable in the press and minimum bit sticking out of the chuck. Could drill slightly oversized with a small solid carbide end mill, punch out broken bit, clean up hole and use adjustable gas block. And pictures! Quote Link to comment Share on other sites More sharing options...
shooterrex Posted September 7, 2019 Report Share Posted September 7, 2019 3/32 HSS . Quote Link to comment Share on other sites More sharing options...
unforgiven Posted September 7, 2019 Report Share Posted September 7, 2019 That sucks ☹️ Quote Link to comment Share on other sites More sharing options...
shooterrex Posted September 7, 2019 Report Share Posted September 7, 2019 Quote Link to comment Share on other sites More sharing options...
jtallen83 Posted September 7, 2019 Author Report Share Posted September 7, 2019 8 minutes ago, shooterrex said: What was the ordered length from WOA? Yours looks right on the money. Curious what the starting port measurement was? If it was the same .073" I had then drilling bigger yet and adding an adjustable block Quote Link to comment Share on other sites More sharing options...
shooterrex Posted September 7, 2019 Report Share Posted September 7, 2019 (edited) 11 1/8" ordered length. 1/16" drill bit was too small next size up I had was 3/32" if there was way too much gas I was going to get an adjustable gas block. New barrel will be here Monday. Cobalt bits In 64's arrived today. Think I will Install the new barrel and mess with the stuck bit latter. Think I will drill out new barrel to 5/64" before I even install it. Now where did I put that dimpling jig? Edited September 7, 2019 by shooterrex fat fingers Quote Link to comment Share on other sites More sharing options...
jtallen83 Posted September 7, 2019 Author Report Share Posted September 7, 2019 14 minutes ago, shooterrex said: With the amount of bit already through you may be able to drive it out, risky business without something sacrificial for the bit to hit when it goes. Quote Link to comment Share on other sites More sharing options...
shooterrex Posted September 7, 2019 Report Share Posted September 7, 2019 Driving it through was my first thought. I HAD a roll pin punch for gas block roll pins. Real short punch end. Bent the crap out of it trying to drive bit through. Broke it trying to straighten it out. Quote Link to comment Share on other sites More sharing options...
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