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#6709597 - 03/19/17 08:05 PM out of spec?
Matt Hejl Offline
Bird Dog

Registered: 05/17/11
Posts: 355
the most current AR15 that I built would not take the entire spring and detent for the front take down pin. I could not push the spring and detent down enough to get the pin started in the hole. The spring would compress all the way and bottom out and I am 100% positive I had the right detent and spring. I ended cutting off about 1/8" of the spring off and it worked perfectly fine.

Is it just the spring and detent hole not drilled to spec for depth?

It all works perfectly fine now, was just curious what you guys though.

#6709767 - 03/20/17 12:07 AM Re: out of spec? [Re: Matt Hejl]
TexFlip Offline
THF Celebrity

Registered: 08/18/12
Posts: 10498
Loc: Chambers County
May have had some grit or dirt in it. An 8th is quite a bit to have to take off though. You sure you didn't drop a detent in there on accident?

#6710153 - 03/20/17 12:20 PM Re: out of spec? [Re: Matt Hejl]
HankePanky Offline

Registered: 11/21/09
Posts: 120
Loc: Houston, Texas
My bet is that before you got the lower, someone jammed the detent pin in before the spring and it's now stuck there. That would be about the right size for the amount of spring you had to cut off.


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