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sgttessnc 09-19-2011 03:10 AM

end plate spring?
what is the purpose of the small spring the extends from the lower receiver when you replace the end plate on an AR?

is it necessary?

where can you buy a replacement and what is it's actual name?

thank you

mjkeat 09-19-2011 03:18 AM

It keeps your rear take down pin from vibrating out. W/O it your recievers will seperate and pivot on the front take down pin.

kenhesr 09-19-2011 03:35 AM

Are you also missing the take down detent? The detent spring is #11 on the parts list. If you don't have the detent that is #12

Look Here Del-Ton, Inc. AR-15 Lower Parts - Standard

Don't feel too bad, I've launched several into low orbit! :rolleyes: Ken

sgttessnc 09-19-2011 03:43 AM

thanks for the info and the nomenclature and source. I will have to order even more rifle parts.

kenhesr 09-19-2011 03:51 AM

You are VERY welcome and I forgot, Welcome to the forum!!! Ken

sgttessnc 09-19-2011 06:18 PM

parts ordered
thanks for the link

Txhillbilly 09-19-2011 09:20 PM

Don't you just love it when those little springs fly out,and are never to be found again in a room in your house.
I don't think there's a person on earth that has assembled or worked on an AR,that can say they haven't ever lost a few springs and detent pins!

wooleybooger 09-20-2011 02:14 AM

i didnt lose mine. it crawled out from under the table the day after the replacement came in the mail.

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