Take Down Pins on AR

[run8]

So I've done a few OLL builds, after the first one the rest got easier. However having not built any for a while, I decided to build up a lower (RRA) to mate to a upper (Stag). The take down pins are tough to snap into place once the upper is mated to the lower, the pins themselves snap into place just fine w/o the upper installed.

My thoughts are build up from the finish of the upper which are causing the binding, any ideas folks, appreciate the help? I've tried a bit of oil, do I just have to let it soak into the parts a bit more to reduce the binding?

Thanks in advance,

Frank

[Noobert]

it can also be that the holes between the upper and lower are not entirely in the same position

[Lucky7]

Try working them back and worth without the upper on it and also play with the safety until you can work it very quickly and smoothly.

[mds2004]

Sounds like you just have a tight fit between the upper and lower which is perfectly normal. The more you shoot the more it will loosen it up.

[run8]

Thanks guys.

[Purple K]

I've had one build that required the use of a very fine, round file due to a slight misalignment of the holes for the rear pin.

[Arteel]

My upper and lower also have a very tight fit. Its impossible for me to take the halves apart by hand. The upper is a Noveske, which is fairly new, and my lower is a high standard which has seen about 1k rounds. No sign of it loosening after shooting either. I dont want to gind anything, so I'm just going to get a new lower. GL with your build.