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Old 04-17-2010, 02:35 AM
Beartooth Regular
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AR-15 question

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I ordered a set of picatinney rails online to attach to the mid-length handguard on my Rock River carbine. These were UTG G36 as shown at Amazon and had customer comments about how easily they attached and quality construction. For the life of me I don't see how they would attach without drilling the handguard and putting locking nuts under the heat shield. Instructions in the catalog says no gunsmithing. I have looked at others in other catalogs that do not show anything special to mount to the handguard. This rail fits snugly in the bottom groove but came with nothing more than some screws to mount it. Am I not seeing something here?
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Old 04-17-2010, 02:56 AM
hailstone's Avatar
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Join Date: Dec 2003
Location: midwest
Posts: 1,405
Most free float handguards I've seen either have holes drilled and tapped for attaching the rails plus a larger one for sling swivel stud or there blank. Doubt they would be glued on although that could be possible with todays adhesives. I don't have a Rock River upper or any of there handguards/free float setups. Do have several other makes and some do have the holes but most don't. Yankee Hill Machine is one that does.
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Old 04-17-2010, 02:05 PM
TurkeySLAYER's Avatar
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Location: North Carolina
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The rails that attach to the stock hand guard do so with a "nut" that has a flange on it. The "flange" keeps it from falling through the hole in the hand guard. I have one on my DMPS. While it does work, it was a pain to install because the glacier guards are thicker than M4 or carbine style guards. Tightening them down isn't the easiest thing to do because you have nothing on the "flange" to grab hold of. I had to use a longer allen screw, pair of pliers and a lock nut to get it to work. Not the greatest set up, but it does it's job of attachment point for the bi pod.
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Old 04-22-2010, 12:38 PM
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Join Date: Dec 2008
Posts: 385
This set of picatinney rails came with screws but no nut for the back side of any kind. It also does not make it very clear in any catalog I've been able to find. I guess bottom line is don't buy the UTG G36 picatinney rail set. It will cost more then they are worth to return them. I'll have to use my "American ingenuity" to figure something out!
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