Flashbanggoodbye Posted June 20, 2020 Report Share Posted June 20, 2020 Since my stuck bolt mishap, i have to basicly rebuild a upper for my LR308 Oracle, my upgrading idea is a fail safe bolt carrier group, a Aero Precision upper receiver, and a stainless steel 308hbar16 barrel. My question is the barrel comes with a barrel extension, what are pros and cons of a extension? I don't want to change gas tube or rail set up. Quote Link to comment Share on other sites More sharing options...
Flashbanggoodbye Posted June 21, 2020 Author Report Share Posted June 21, 2020 So barrels don't automatically have this machined in? Ok, just really looked at my dpms barrel, now I'm understanding it's seperates from the actual barrel, but how? Is it a dowel pin? Can i punch the pin out and Seperate? Bolt and shot casing are still lodged in it. Quote Link to comment Share on other sites More sharing options...
shooterrex Posted June 21, 2020 Report Share Posted June 21, 2020 (edited) The pin just locates the Barrell so the gas port is in the right place. The extension is screwed on with about 90 ftlbs of torque. The chance on a different extension indexing to the right spot to where the gas port is at 12 o'clock is pretty slim. Just buy another barrel. Edited June 21, 2020 by shooterrex spelling Quote Link to comment Share on other sites More sharing options...
Flashbanggoodbye Posted June 21, 2020 Author Report Share Posted June 21, 2020 Ok, a new moriati arms barrel is in the budget for next Friday, but I'm on a quest now to vet this casing out" i had to cut the receiver in half to get it apart, somehow the bolt got jammed in the extension flanges, and is tighter than God. I wanna know what happened? The rifle shot perfectly 150 shots then bam, my other post tells the story... Quote Link to comment Share on other sites More sharing options...
shooterrex Posted June 21, 2020 Report Share Posted June 21, 2020 Put the extension in a vice and get a big pipe wrench and unscrew the barrel. Your getting a new barrel anyway. This should let you see some of what happened. Quote Link to comment Share on other sites More sharing options...
Flashbanggoodbye Posted June 21, 2020 Author Report Share Posted June 21, 2020 It's a dpms out of the box, I've upgraded the rail, the buffer and spring, changed it over to mil spec tube, new stock, tyrant design2 handgrip, and put it under a 4x16x44 vortex Diamondback, really loving the punch, but dam it's costing me a fortune... Lol. But knowledge is power, and I've learned a lot about the AR10 platform. Thanks for the help, really. Quote Link to comment Share on other sites More sharing options...
shooterrex Posted June 21, 2020 Report Share Posted June 21, 2020 https://www.cdnnsports.com/ar15-heavy-barrel-762x51-16-1-10-dpms.html#.Xu65VtYpD7w Quote Link to comment Share on other sites More sharing options...
98Z5V Posted June 21, 2020 Report Share Posted June 21, 2020 2 hours ago, shooterrex said: The pin just locates the Barrell so the gas port is in the right place. The extension is screwed on with about 90 ftlbs 175 lb/ft of torque. The chance on a different extension indexing to the right spot to where the gas port is at 12 o'clock is pretty slim. Just buy another barrel. I had to fix that for ya. Quote Link to comment Share on other sites More sharing options...
shooterrex Posted June 21, 2020 Report Share Posted June 21, 2020 Tnx Quote Link to comment Share on other sites More sharing options...
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