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Posted: 2/24/2013 8:50:38 AM EDT
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I have a matching LMT upper and lower (assembled and shipped together) - brand new. There's a slight amount of play between both with the takedown pins in place - you can wiggle the upper just enough side to side to create some wiggle. The takedown pins in the lower are nice and tight, so I'm wondering if the play in the upper is a problem or not. Is there such a thing as an upper takedown pin shim? Is this something I need to think about addressing?
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Quoted: I have a matching LMT upper and lower (assembled and shipped together) - brand new. There's a slight amount of play between both with the takedown pins in place - you can wiggle the upper just enough side to side to create some wiggle. The takedown pins in the lower are nice and tight, so I'm wondering if the play in the upper is a problem or not. Is there such a thing as an upper takedown pin shim? Is this something I need to think about addressing? 1 - If it bothers you that much, get an accuwedge (google it). 2 - No |
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A small amount of play between the upper and lower is not an issue at all and is perfectly normal. Some people use an accuwedge or some people use an o ring around the front pivot pin boss on the upper to eliminate the play between the upper and lower. Some people look at the accuwedge and o ring as a solution to a non existent problem. Also, some people look at them as a potential problem because they can and will break into pieces and get lodged in the lower and cause malfunctions at times when your life is on the line. If you plan to use your rifle for home defense or any other defensive use, do not use an accuwedge or o ring in your rifle. You will not experience any issues caused by play between the upper and lower receivers. |
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Ok, after looking at all of the options I like the ease of the takedown enough to not mess with this. I'd rather have the takedown pins left alone and not try to change it with an additional device or wedge. In other words I'm going with this advice:
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Embrace the slop, it makes your rifle easier to take down and doesn't effect accuracy in the least. lol - seriously, it's not enough play for me to be concerned, but it's one of those things I saw near the very beginning of my project that if I didn't ask I was going to let it bug me. |
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