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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
AR10 barrel nut problem
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<blockquote data-quote="rpol98" data-source="post: 3065677" data-attributes="member: 122310"><p>if, with the barrel nut installed, the gas tube is contacting the front edge of the barrel nut, in the groove, and then is aimed so that it contacts the top tang of the cloverleaf, then the Z-bend in the gas tube is not enough to get it up high enough so that the back-end of the gas tube enters the receiver <strong>parallel</strong> with the top of the barrel nut.</p><p></p><p>that tells me it's an AR-15 gas tube, Z-bend for the smaller AR-15-sized barrel nut, insufficient offset in the Z-bend to clear the larger diameter of the AR-10-sized barrel nut.</p><p></p><p>if you want to use <strong>that</strong> gas tube, you're going to have to tweak it a little so that the final angle at entry into the clover leaf is perfectly parallel to the top surface of the barrel nut. not tilted up, as in your case. It's an easy remedy.</p><p></p><p>if your handguard slips over your barrel nut, then the barrel nut OD is in-spec.</p><p></p><p>-----------------</p><p></p><p>ETA: I'm not even sure if anybody even sells AR-15-length gas tubes (carbine, mid, rifle) for use in large-frame DPMS LR-308 application, because everybody just bends it a little to make it fit when necessary. It would be such a small niche market, although probably a bigger market than the Armalite AR-10 gas tubes (about 3/8" longer), which is a really really small market segment, probably kept alive only by Faxon AR-10 barrel sales. and Wilson Combat AR-10 barrels.</p></blockquote><p></p>
[QUOTE="rpol98, post: 3065677, member: 122310"] if, with the barrel nut installed, the gas tube is contacting the front edge of the barrel nut, in the groove, and then is aimed so that it contacts the top tang of the cloverleaf, then the Z-bend in the gas tube is not enough to get it up high enough so that the back-end of the gas tube enters the receiver [B]parallel[/B] with the top of the barrel nut. that tells me it's an AR-15 gas tube, Z-bend for the smaller AR-15-sized barrel nut, insufficient offset in the Z-bend to clear the larger diameter of the AR-10-sized barrel nut. if you want to use [B]that[/B] gas tube, you're going to have to tweak it a little so that the final angle at entry into the clover leaf is perfectly parallel to the top surface of the barrel nut. not tilted up, as in your case. It's an easy remedy. if your handguard slips over your barrel nut, then the barrel nut OD is in-spec. ----------------- ETA: I'm not even sure if anybody even sells AR-15-length gas tubes (carbine, mid, rifle) for use in large-frame DPMS LR-308 application, because everybody just bends it a little to make it fit when necessary. It would be such a small niche market, although probably a bigger market than the Armalite AR-10 gas tubes (about 3/8" longer), which is a really really small market segment, probably kept alive only by Faxon AR-10 barrel sales. and Wilson Combat AR-10 barrels. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
AR10 barrel nut problem
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