[ARCHIVED THREAD] - Upper quality differences

Posted: 9/4/2012 2:57:11 PM EDT

I plan on building a new AR and need a new upper assy, is there any real difference in brands of flat top uppers?
I need M-4 cuts to match my 20" barrel, it will be 5.56 cal.with a free float Troy Battle rail.

Thx
J

Posted: 9/4/2012 3:11:22 PM EDT

[#1]

As long as it's in spec there really isn't a functional difference...

The finish and machining may be different between manufacturers but that usually doesn't affect function.

I like this one if you don't need a forward assist...has an option with or without feedramps. Also comes from a top notch company.

Rainier Arms Upper Receiver

Posted: 9/4/2012 3:12:15 PM EDT

[#2]

I have used CMMG, Spikes, RRA all have been great. I am going to pick up one of the PSA blems maybe for some rattle can gun.

Posted: 9/4/2012 4:10:20 PM EDT

[#3]

Quoted:
I have used CMMG, Spikes, RRA all have been great. I am going to pick up one of the PSA blems maybe for some rattle can gun.

Exactly what I did over the weekend with my PSA blem. A FDE project. PSA has them back in stock at the moment, $49.95 = win.

Posted: 9/4/2012 4:25:39 PM EDT

[#4]

You have a 20" barrel with M4 feed ramps?

Posted: 9/4/2012 4:40:36 PM EDT

[#5]

Quoted:
You have a 20" barrel with M4 feed ramps?

actually, your right I don't... its std rifle barrel ramps....

Posted: 9/4/2012 5:10:22 PM EDT

[#6]

I have a 20" barrel with M4 ramps. It's a CMMG

[ARCHIVED THREAD] - Upper quality differences

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[ARCHIVED THREAD] - Upper quality differences

[ARCHIVED THREAD] - Upper quality differences