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AR15.COM
8/22/2012 5:09:37 PM EDT
I'm looking to build/order a lightweight upper to coyote hunt with.  It will go on top of my RRA lower which currently has the CARA4 Hbar barrel. I don't like the weight of it and want something lighter to tote around.  It also has a FSB and I want a gas block. I wish to try and stay with RRA.   Alot of weights aren't listed on it's site; which I can understand due to the numerous variations on some uppers. But does anyone know the weight of the following

Coyote rifle and/or carbine upper (this will probably be same or close to my current setup)

Predator Pursuit rifle and/or midlenght (I know this will be more than my current setup)

A midlength, rifle and carbine lightweight barrel

The 16 or 18in wylde chamber stainless barrel

Midlength, rifle and carbine aluminum free float tubes


I believe what I might order is the midlength upper with the lightweight chrome lined barrel.  I don't think it is the Wylde chamber though?  The stainless is listed as a Wylde chamber but I don't know how much it weighs.  Hopefully someone has built a lightweight upper themselves or ordered one from RRA and can help me out.  I Google'd  numerous times to try and find the weights.  If they are located somewhere, please let me know.
8/23/2012 4:37:04 AM EDT
[#1]
Differnce between an HBAR and a ligthweight barrel (otherwise identical-gas port location, length, etc...) is about 8 ounces.
Identical barrels, regardless of material (moly or stainless), weight the same.
Identical barrels use din the same builds weigh the same.
Mid barrel  is three to four ounces heavier than a CAR  in same length.
I'll see what ellse I can come up with.
Steve/RRA
8/23/2012 10:35:10 AM EDT
[#2]
Only 8oz, wow.  I might be better off getting a stainless barrel and have ADCO do some fluting. Thanks for the response sir.
8/24/2012 7:08:09 AM EDT
[#3]
Half a pound is pretty significant..especially if you still want tomaintain good accuracy and decent heat dissipation characteristics.
Steve/RRA
8/25/2012 2:29:56 PM EDT
[#4]
Whay about the midlength tube style handgaurd?
8/27/2012 5:12:25 AM EDT
[#5]
Mid freefloat tube is 12.8 ounces.  Rifle lngth is 19.6 ounces.
Steve/RRA