Les Baer 264lbc full AR owners
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In 2007 I purchased a Les Baer 20 inch Varmint. These early rifles have true 6.5 Grendel chambers. The upper to lower fit is tight enough that I use a synthetic punch to drive the pins out. I have read many times that a loose fit has no affect on accuracy but as you say for the price I would expect a tight fit.member since 2004; unmembered in 2011 "spam" attack
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Buckster, bear in mind, the tighter the fit between upper and lower the more difficult to pin / unpin the upper to the lower. To facilitate field "emergancies" and because of multi-vendor manufacturing and manufacturing tolerences, there has to be a little slack in the build. Otherwise some parts would not be mate-able without a great deal of trouble. If you spent a lot of time in the field with an AR / MSR, would you like to have to carry a hammer and a punch to seperate the upper from the lower, just in case?
The Accu-wedge is a very viable solution to firm up that interface. Some of us ( myself included ) drill and tap the lower and install a snubber to take some ( but not all ) of that slack and wiggle out. There is another currently active thread about that.
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Les Baer is normally known for specifying his own matched receiver sets that have a very tight lock-up.NRA Basic, Pistol, Rifle, Shotgun, RSO
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com
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Here is more to the story when I ordered the gun. It was going to be at least 3 weeks to get the gun. It was here in 3 days. So I’m guessing the gun had been returned for the same reason. The first time I call them about it I didn’t have the serial number on me and Brenda said they needed it to give me any info on gun. The second time I called the guy Who answered would not answer any of my questions. The third time I called Brenda answered gave her the serial number told her was was going on and was immediately transferred to somebody else.
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I have used the nationalmtachshim on several AR's . Works well, takes 1/2 hour to do, and you can decide how tight you want the pin fit.
Clarence
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Originally posted by just_john View PostBuckster, bear in mind, the tighter the fit between upper and lower the more difficult to pin / unpin the upper to the lower. To facilitate field "emergancies" and because of multi-vendor manufacturing and manufacturing tolerences, there has to be a little slack in the build. Otherwise some parts would not be mate-able without a great deal of trouble. If you spent a lot of time in the field with an AR / MSR, would you like to have to carry a hammer and a punch to seperate the upper from the lower, just in case?
The Accu-wedge is a very viable solution to firm up that interface. Some of us ( myself included ) drill and tap the lower and install a snubber to take some ( but not all ) of that slack and wiggle out. There is another currently active thread about that.
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