 urbanredneck 
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Joined: Oct 2006  FL, USA
 Posts: 4695 Feedback: 100% (3) |
Posted: 7/13/2012 2:08:56 PM
THE IMAGE ABOVE IS A PAID ADVERTISEMENT 
Okay, so leaned my patrol rifle against the table and it took a spill onto the tile floor. My magpuls and Aimpoint disagreed on point of aim after that. Turns out my BUIS was off. I wasn't sure where the shift had occurred but I decided to buy the MI end cap to add more support for the free float incase is takes a spill again. Well after the install, this is what I see. The free float shifted off center. It's not a lot and its more annoying than anything I guess but if I disassemble the FF will it re-center when I put it back together? |
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Posted: 7/13/2012 2:12:39 PM
i would thinking pulling it off and re-installing should recenter it but i suppose you may have damged something.
probably was loose in the first place if it got knocked off the bad just tipping over |
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FLATFOOT762
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Team Member
Joined: Mar 2009 OH, USA
Posts: 2573 Feedback: 100% (6) Link To This Post |
Posted: 7/13/2012 3:05:08 PM
Originally Posted By Obo2: i would thinking pulling it off and re-installing should recenter it but i suppose you may have damged something. probably was loose in the first place if it got knocked off the bad just tipping over This is my thought too. |
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Midwest_Ind
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Joined: Jul 2004 WI, USA
Posts: 3416 Feedback: 100% (19) Link To This Post |
Posted: 7/13/2012 3:19:14 PM
[Last Edit: 7/13/2012 3:19:24 PM by Midwest_Ind]
Were you able to re sight it in and hold a zero?
PETE MI |
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Posted: 7/13/2012 5:02:04 PM
Originally Posted By Midwest_Ind:
Were you able to re sight it in and hold a zero? PETE MI Yes. |
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Posted: 7/13/2012 7:53:52 PM
It's possible the end of the rail was always a little off center. When you installed the end cap and reduced the side clearances the off-center alignment became more apparent.
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Posted: 9/11/2012 8:04:37 PM
[Last Edit: 9/11/2012 8:05:16 PM by urbanredneck]
Well, my rifle took another spill and it straightened out the barrel but knocked the crap out of my sights. So upon closer inspection, the entire tube rotated slightly. I'm assuming that the gas tube stopped it from going further. I twisted it back straight but now I have to figure out how to stop it from rotating in the future. My initial idea today was to move my aimpoint mount up so that it grabs the back end of the tube but I had to put the mount screw on the left side now which I am not wilde about.
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Posted: 9/12/2012 9:09:24 AM
Originally Posted By urbanredneck:
Well, my rifle took another spill and it straightened out the barrel but knocked the crap out of my sights. So upon closer inspection, the entire tube rotated slightly. I'm assuming that the gas tube stopped it from going further. I twisted it back straight but now I have to figure out how to stop it from rotating in the future. My initial idea today was to move my aimpoint mount up so that it grabs the back end of the tube but I had to put the mount screw on the left side now which I am not wilde about. If the gas tube stopped it, it sounds like your barrel nut is loose. I don't think a spill should twist it (the barrel nut that is). Maybe just the handguard rotated against the jamb nut instead. If the barrel nut is that loose it will twist again. I would think about removing the handguard and gas tube and tightening the barrel nut to spec. just my thoughts |
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Posted: 9/12/2012 12:59:00 PM
Originally Posted By Espos1111:
Originally Posted By urbanredneck:
Well, my rifle took another spill and it straightened out the barrel but knocked the crap out of my sights. So upon closer inspection, the entire tube rotated slightly. I'm assuming that the gas tube stopped it from going further. I twisted it back straight but now I have to figure out how to stop it from rotating in the future. My initial idea today was to move my aimpoint mount up so that it grabs the back end of the tube but I had to put the mount screw on the left side now which I am not wilde about. If the gas tube stopped it, it sounds like your barrel nut is loose. I don't think a spill should twist it (the barrel nut that is). Maybe just the handguard rotated against the jamb nut instead. If the barrel nut is that loose it will twist again. I would think about removing the handguard and gas tube and tightening the barrel nut to spec. just my thoughts Guess I need to bring it in for one of the armorers to take a look at it. |
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