![]() ![]() I'm waiting for KAC to come out with their PDW uppers with no FA or brass deflector.MicroFit™ pins come in three sizes mean, oversized and undersized for both the front and rear of the receivers. I know it would be nice to have a kiss upper like this with no FA and I have been thinking about a build like this myself, but I can bring myself to buy anything LB. Its either that or start sanding down the takedown lugs. All you are going to do is egg out the pin holes on your nice lowers. Blow it out your ass Les Baer mothergrabber! I ****ing hate tinkering when I'm forced to just to get a product to work right. Couldn't get either pin in all the way with just my hands but in spite of pushing them in by hand had to pound them out once in. Had to start with the upper rotated forward just to get the pin started and then closed the two halves to get the takrledown pin in. ![]() Couldn't even get it seated on the lowers far enough to get the pin in. Put the upper on 6 different stripped lowers and the front lug for the pivot pin was too wide for ALL OF THEM. Tried Just the pins in the upper without the lower and while tight they were nowhere near as tight as when assembling with a lower. If elbow grease was not enough I would chuck up some bar stock of the correct diameter in a cordless with bore paste and hit it with some slow, careful RPM. ![]() I might try using a set of those EZ-Pull Pins for tools along with bore paste/lapping compound combined with elbow grease (cycling). ![]() My thinking is in parallel with the above posts. Yea basically what failer2stop posted along with the same precautions. Use a old take down pin load it up with lapping compound and chuck it in a drill. Start slow, gradually increasing speed of the drill. Take a new brass bore brush and chuck it into a variable speed hand-drill. Be careful, if you make you upper looser than a Phillipino lady-boy, it ain't my fault. Rub pin hole in upper lugs with Flitz or a bore paste. Completely strip pins and lugs of any lubrication. Using nylon punch, repeatedly insert and remove pins until do-able by hand while shaking assembled weapon.Ģ- Medium. I made them acceptable with the following methods:ġ- Slow. I have had some very tight upper/lower fit rifles and carbines. ![]()
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