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2/23/2008 5:49:35 PM EDT
So what keeps the Daniel Defense Lite handguard's barrel nut from unscrewing when you apply too much counter-clockwise pressure to, say, a vertical grip?

And don't say "the bolts hitting against the upper," because they don't fit directly against it.  It's not the same as the LaRue "keeper" method, for example.  Sure, the DD bolts might keep it from completely unscrewing, but even an 1/8 inch rotation can make any front sight on the handguard useless.

By the way, I guess this question also applies to handguards that rely on anything similar, like the YHM "jam nut."
2/24/2008 4:04:54 PM EDT
[#1]
wow, more than 30 hits on this post, and nobody wants to explain how it works?  Doesn't make me very confident of these products.
2/24/2008 5:12:49 PM EDT
[#2]
Torque.  If you can twist the VFG enough to match the 30-80 ft-lbs. of torque that were used to tighten the barrel nut during installation then it will come off.
2/24/2008 11:05:21 PM EDT
[#3]
Friction.
2/25/2008 9:53:23 AM EDT
[#4]
Actually with the Lite Rail, you're not putting pressure on the barrel nut when you torque the rail.  It's hard for me to see anyone putting enough torque on a properly installed Lite Rail to turn it with a vertical grip.
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