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Old 09-19-2011, 03:10 AM   #1
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Default 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

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Old 09-19-2011, 03:18 AM   #2
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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.

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Old 09-19-2011, 03:35 AM   #3
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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! Ken

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Old 09-19-2011, 03:43 AM   #4
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thanks for the info and the nomenclature and source. I will have to order even more rifle parts.

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Old 09-19-2011, 03:51 AM   #5
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You are VERY welcome and I forgot, Welcome to the forum!!! Ken

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Old 09-19-2011, 06:18 PM   #6
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Default parts ordered

thanks for the link

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Old 09-19-2011, 09:20 PM   #7
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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!

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Old 09-20-2011, 02:14 AM   #8
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i didnt lose mine. it crawled out from under the table the day after the replacement came in the mail.

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