Firearm & Gun Forum - FireArmsTalk.com > Long Guns > Auto & Semi-Auto Discussion > AR-15 Discussion > were to buy A4 style uppers w/o feed ramps?

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Old 01-10-2012, 03:38 AM   #1
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Default were to buy A4 style uppers w/o feed ramps?

does anyone know were to find an A4 style upper W/O feed ramps, 5/16'' pivot pin dia.

thanks

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Old 01-10-2012, 03:43 AM   #2
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Is there a reason you don't want ramps?

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Old 01-10-2012, 03:50 AM   #3
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Is there a reason you don't want ramps?
well i have a colt ar15, ive been reading that old colt barrels dont have feed ramps
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Old 01-10-2012, 05:15 AM   #4
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I believe all AR's had feed ramps. The carbines had more pronounced ones than the rifles and the m-4's were even more pronounced. Even if you are dropping one on a Colt lower, you still want feed ramps

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Old 01-10-2012, 05:25 AM   #5
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eek,

I understand that but what in the world would you want a barrel without the M-4 feed ramps? There is no way new or old I would want an upper or barrel without the M-4 feed ramps. They are reliable and something one should buy the weapon with the M-4 feed ramp. Only cheap uppers would ever have an assembly he would not get the meat to the extractor after we get back from the hunt in a couple of weeks.

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Old 01-10-2012, 06:40 AM   #6
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Well if you get an old barrel that has rifle feed ramps, not M4 feed ramps then no doubt you'll need a receiver without M4 feed ramps too. That can be hard to find in an A4 upper these days.

Some manufacturers distingushed their flat top upper receivers as A3/rifle ramps and A4/M4 ramps but it's not so common today.

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Old 01-10-2012, 07:48 AM   #7
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You can use an M-4 ramped barrel on a standard lower but not the other way around. You can have the non-M-4 lower modified to m-4 ramps, but you cannot cut the barrel extension (way too hard) to modify the ramps.

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Old 01-10-2012, 12:56 PM   #8
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Stag arms has uppers without feedramps, I don't know pin size though.

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Old 01-10-2012, 03:41 PM   #9
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No feed ramps

Rainier Arms, LLC™ | Browse | Receivers - Upper | Rainier Arms Forged Upper Assembly - Minus FA

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Old 01-10-2012, 03:55 PM   #10
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sorry for the mistake but what i ment was a4 style uppers that dont not have m4 style feed ramps, i was doing some more searching and apparently i was prove wrong even the old colts have feed ramps just not m4 style.

M4 Feedramps - M4Carbine.net Forums

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