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Posted: 2/16/2016 1:12:28 PM EDT
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A while back I bought a couple of pencil barrels from McKay, I used one in my 603 clone and I'm starting to acquire everything for the second rifle.
These barrels both have M4 feed ramps and 1:7 twists: 
The upper I used for my 603 clone did not have extended feed ramps and it has never been an issue, but I'm looking for a similar upper that does have them. So, what I want is an upper with an A1 rear sight and extended feed ramps. I don't really care if it has a shell deflector or a forward assist, and I'd prefer a brand new upper if possible. Does anyone offer an upper like this? |
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Quoted:
A while back I bought a couple of pencil barrels from McKay, I used one in my 603 clone and I'm starting to acquire everything for the second rifle. These barrels both have M4 feed ramps and 1:7 twists: http://i.imgur.com/3h4pULhl.jpg The upper I used for my 603 clone did not have extended feed ramps and it has never been an issue, but I'm looking for a similar upper that does have them. So, what I want is an upper with an A1 rear sight and extended feed ramps. I don't really care if it has a shell deflector or a forward assist, and I'd prefer a brand new upper if possible. Does anyone offer an upper like this? You can use an upper without feedramps with barrel that has M4 feedramps. Although not ideal, it does work. I have a couple set up that way and have had zero issues. |
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Yeah, it's never been a problem with the other rifle but I've only fed it green tip.
I've seen one of these uppers before at a show but I don't know what rifles they are/were used on. If I can find one that would be cool, I'd like to see what these barrels can do with some longer projectiles. |
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http://www.ar15.com/forums/t_2_489/251709_C7_Style_Upper_Receivers.html&page=3
Call Windham Weaponry ^^^ "C7" style uppers with M4 ramps |
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