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Posted: 3/13/2006 8:24:12 AM EDT
I am considering getting a Leitner Wise upper and was wondering if a LaRue handguard will fit over the gas piston system?
Link Posted: 3/13/2006 10:53:43 AM EDT

The LW upper has the option of the very nice ARM-R rail system and the ARMs SIR is the only other system known to fit.

Link Posted: 3/13/2006 4:10:38 PM EDT
If you send in a CASV-EL......then they can test their theory that it needs a little bit of machining.....

Otherwise Ridge is bang on.

The Larue is too narrow in sidewalls of the top rail to accomodate the piston.

The ARM-R works great and even has a retuirn to zero removable top half that lets you open in up without tools and get right into the piston for that concous d'elegance cleaning that is unnecessary.

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