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The Range
Rifle & Shotgun Discussion
Pieced together AR's
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<blockquote data-quote="aestus" data-source="post: 2002638" data-attributes="member: 2989"><p>Quality / questionable parts and price aside, my worst fears for Fudd built uppers is lack of moly grease used on the barrel nut or even worse, graphite and graphite based lube. I've worked on uppers where the barrel nut was pretty much fused onto the upper. I've seen barrel nuts with both red and blue loctite used. I've also seen uppers where the barrel nuts were loose and where there was severe galling in the indexing pin / upper receiver notch area. Mostly likely from people hammering barrels into receivers with tight indexing notches, which leads me to question if they hammered the muzzle end bare... </p><p></p><p>Sometimes, you can see signs of people overly tightening or damage from loosening stuck muzzle devices using receiver clamps instead of properly clamping down on the barrels. It's a bit harder to ruin a lower. Usually I just see a lot of brass marks on the receivers where a brass hammer was judiciously used in hammering in roll pins. I see a lot of damaged and malformed rollpins, due to people not using proper rollpin punches. Then there's always the broken trigger guard tabs, but you usually won't see those on rifles for sale.</p></blockquote><p></p>
[QUOTE="aestus, post: 2002638, member: 2989"] Quality / questionable parts and price aside, my worst fears for Fudd built uppers is lack of moly grease used on the barrel nut or even worse, graphite and graphite based lube. I've worked on uppers where the barrel nut was pretty much fused onto the upper. I've seen barrel nuts with both red and blue loctite used. I've also seen uppers where the barrel nuts were loose and where there was severe galling in the indexing pin / upper receiver notch area. Mostly likely from people hammering barrels into receivers with tight indexing notches, which leads me to question if they hammered the muzzle end bare... Sometimes, you can see signs of people overly tightening or damage from loosening stuck muzzle devices using receiver clamps instead of properly clamping down on the barrels. It's a bit harder to ruin a lower. Usually I just see a lot of brass marks on the receivers where a brass hammer was judiciously used in hammering in roll pins. I see a lot of damaged and malformed rollpins, due to people not using proper rollpin punches. Then there's always the broken trigger guard tabs, but you usually won't see those on rifles for sale. [/QUOTE]
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