Warning

 

Close
Confirm Action

Are you sure you wish to do this?

Cancel Confirm
AR15.COM
11/20/2012 10:18:39 AM EDT
I want to upgrade to a chrome lined barrel. Any recomendations on a new drop in barrel?  Also does anyone know if I will have issues with my RRA upper and feed ramps not lining up? I have heard that the rra uppers are not true M4 feed ramps.
11/21/2012 4:48:54 AM EDT
[#1]
Any standard AR-platform barrel should be compatible.  You shoul dhave extended feed ramps that match up to a rifle (not M4) barrel extension's ramps.
Steve/RRA
11/21/2012 6:54:57 AM EDT
[#2]
Quoted:
Any standard AR-platform barrel should be compatible.  You shoul dhave extended feed ramps that match up to a rifle (not M4) barrel extension's ramps.
Steve/RRA


Ok a little confused here. Any standard AR-platform barrel?  So all the barrels I see availible that have M4 Feed Ramp Barrel Extensions (USGI) will not work? All the ones I am interested in are 16' carbine M4 profile with M4 ramps....

Will any of these work?

http://www.bravocompanyusa.com/BCM-16-M4-Barrel-Stripped-p/bcm-brl-s-m4%2016%20std.htm

http://www.bravocompanyusa.com/Daniel-Defense-16-M4-Carbine-Gas-Barrel-stripped-p/dd%209193.htm

http://www.rainierarms.com/?page=shop/detail&product_id=1570
11/21/2012 9:15:10 AM EDT
[#3]
I don't know about the Ranier becasue they are stating "A4", while DD and BCM are specifying M4 extensions, which are not easily compatible with a non-M4 cut upper receiver.
Steve/RRA