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Posted: 9/1/2006 7:07:53 PM EDT
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Hi My elevation knob keeps moving one or two clicks everytime I fire my M1A. I tightened the screw. Any Ideas? |
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Which screw,, the one on the right or left? The one on the right is the right one If you tightened the screw and it didn't correct the problem, then you might take the sight off and check to see if the serrations on the receiver are worn out, or the nub that engages the notches is. If so, just get one of those 1/2 MOA disks and epoxie it on the receiver with JB weld and wipe off the excess, wet your finger and smooth the JB up. If you do it right, you can't even tell it's there. BTDT 'Borg |
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I had the same problem. I tightened the elevation knob, but it was so tight that I couldn't adjust the windage. Anything looser, even slightly looser, was so loose that the recoil of the gun would throw the rear sight down a peg when I shot it. I ended up sending it back to Springfield. A couple weeks later I got it back, and the problem was resolved. |
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In the field manual, there's a section called "Regular Maintenance." It will tell you how to check the rear sight tension (which it tells you to do prior to firing) and how to tighten it up if it drops. Make sure the screw on the elevation knob is tight (if it's loose, you'll need to back off on the windage knob screw a couple of clicks first, otherwise you'll lock up the sight) and then tighten the screw on the windage knob one detent at a time until the sight will hold elevation. |
What he said. Whatever you do, do not use pliers or anything similar to grasp either of the drums. All adjustments require a screwdriver (or m-14 combo tool or M1 combo cleaning rod handle, depending) and fingers only in order to accomplish the task. If this doesn't work, then something's wrong. Even so, don't use pliers! Of course, you guys with the cleaning kits in the buttstocks of your rifles already have the tools wherever you take the rifle, so this is no big deal. HINT! |
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