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Posted: 2/9/2015 12:23:54 PM EDT
[#1]
Yes, they're made. The Colt 6520 uses an A2 upper receiver with M4 feed ramps.
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Posted: 2/9/2015 12:34:42 PM EDT
[#2]
Quote HistoryQuoted:
Yes, they're made. The Colt 6520 uses an A2 upper receiver with M4 feed ramps. Can they be readily found for sale as a stripped upper? |
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Posted: 2/9/2015 12:42:32 PM EDT
[#3]
I can confirm that the DPMS A2 stripped upper does not have m4 feedramps. I'm mainly here to pass on that CDNN is selling them for $50. Shipping is a flat rate $10. I just got one, it looks great and arrived 2 days after I ordered.
CDNN |
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Posted: 2/9/2015 2:08:46 PM EDT
[#4]
Quote HistoryQuoted:
I can confirm that the DPMS A2 stripped upper does not have m4 feedramps. I'm mainly here to pass on that CDNN is selling them for $50. Shipping is a flat rate $10. I just got one, it looks great and arrived 2 days after I ordered. CDNN Wow, thanks for the heads up. Still would like to see if anyone has a line on M4-type A2 uppers. |
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Posted: 2/9/2015 7:31:40 PM EDT
[#5]
American Spirit Arms, I've got one, works great.
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Posted: 2/9/2015 11:56:52 PM EDT
[#6]
It actually doesn't matter if the reciever doesn't have ramps.
I don't think any civillian semi auto Ar needs it. The M4 ramps were specifically for the M4 on full auto iirc. The only potential issue would be if the reciever were an M4 but the bbl is rifle extension. That said, I did that on an upper and it ran just fine for years. |
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Posted: 2/10/2015 9:10:08 AM EDT
[#7]
Quote HistoryQuoted:
It actually doesn't matter if the reciever doesn't have ramps. I don't think any civillian semi auto Ar needs it. The M4 ramps were specifically for the M4 on full auto iirc. The only potential issue would be if the reciever were an M4 but the bbl is rifle extension. That said, I did that on an upper and it ran just fine for years. I know the whole story on the development of M4 feed ramps, I know they aren't absolutely necessary. I just figured if I'm going to buy a barrel with a M4 extension, I might as well at least keep an eye out for an upper with matching feed ramps. If I can't find one, it's not a big deal. I'm just getting a feel for what's out there. |
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Posted: 2/10/2015 10:59:13 AM EDT
[#8]
Check the EE for a Colt carbine being parted out.
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Posted: 2/10/2015 3:02:11 PM EDT
[#9]
As stated sbove, American Spirit Arms has A2 uppers w/M4 ramps. I've got a couple and they seem well made. They were out of stock for a while but as of today they seem to have them in stock.
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Posted: 2/10/2015 3:07:41 PM EDT
[#10]
Cool, thanks everyone.
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Posted: 2/19/2015 8:52:37 PM EDT
[#11]
Quote HistoryQuoted:
I can confirm that the DPMS A2 stripped upper does not have m4 feedramps. I'm mainly here to pass on that CDNN is selling them for $50. Shipping is a flat rate $10. I just got one, it looks great and arrived 2 days after I ordered. CDNN Hey, BCO175, thanks for that, m4 ramp or not, that is one sweet deal, just grabbed one, and it was with the greatest amount of self restraint that I did not buy multiples to stash for as yet unrealized builds! Thanks for the heads up! |
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Posted: 2/19/2015 10:44:23 PM EDT
[#12]
Op buy a Dremel.
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Posted: 2/20/2015 4:28:32 AM EDT
[#13]
I have 2 cerro forge A2 uppers both with feed ramps, one came off a factory Bushmaster M4A2 and the other was purchased at M@A.
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Posted: 2/20/2015 8:56:20 AM EDT
[#14]
The Colt 6520 upper has m4 feed ramps and an A2 receiver. I have one. Each one I've ever seen in person or in pictures has feed ramp extensions cut into the receiver after the anodizing was done.
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Posted: 2/21/2015 5:14:15 PM EDT
[#15]
It'll still work fine, if the upper receiver doesn't have them. So I'm told. It's the other way that could cause problems. M4 cuts in the upper but not the barrel extension. It would have a huge hang up point for the bullets to ram into.
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Posted: 2/22/2015 1:45:01 AM EDT
[#16]
Nevermind
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Posted: 2/22/2015 11:10:08 AM EDT
[#17]
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Posted: 2/22/2015 12:17:40 PM EDT
[#18]
Guys, I know you don't NEED them in the upper for it to preform correctly.
But since I currently don't have one, I figured why not try to find one that has feedramps to match the barrel--that's all. |
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