Is the gun malfunctioning as a result of this "grime" under the hand guard?
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Is the gun malfunctioning as a result of this "grime" under the hand guard?
If it's the same as the SR-556E I found diagrams for, the handguard is removable--two screws, the flash hider, and the gas block/piston assy are all that stand in your way.
Remove the FH, remove the gas block, remove the two screws from the bottom of the rail near the receiver, and the whole thing pulls off.
Is yours a different version without the screws?
As far as I know the 556FB and the 556E both use rollpins, unless Ruger has changed something recently. The 556CLA apparently has screws holding the handguard on, but I haven't seen anything about removing it nor have I seen one in person. My FB has rollpins. I'd be very interested in knowing if those pins could be replaced with screws without affect the performance and reliability of the rifle.
You would have to remove the rollpins, 2 or 3 of them, I can't remember, in order to remove the handguard from mine.
Last edited by Superhero; 02-17-13 at 14:28.
i also have an fb...it would be nice if the aftermarket would come up with a screw that could be used to replace the roll pins
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I don't get it. Why don't you just buy a set of roll pin punches and take the rail off yourself?
As for replacing the roll pins permanently, I've never handled a Ruger AR, but the puns could potentially be replaced with properly sized solid pins, or the holes could possibly be tapped/threaded to then accept screws perhaps?? Again, this is all conjecture, as I've not handled a Ruger personally. Would have to see one up close to be sure. I'm betting an easy solution is indeed possible though.
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