I was thinking of getting my barrel profiled from a 20" HBAR to a 20" Government Profile. Is it worth the money to lose a pound? I hear that the Government Profile barrel can't disperse the heat as quickly as the HBAR and that it loses some of it accuracy with extended fire. Does the heat really build up that quickly on a semi-auto AR or does the inaccuracy only occur when firing at the speed of full-auto? Is this amount of inaccuracy much?

Also, where is a good place to have my barrel profiled? I was thinking ADCO?

depends, do you plan on humping a lot of territory w/ your HBAR? if so, the i would opt for the govt profile...

just so, some prefer the looks and weight of the HBAR and the govt respectively--its all on the person

the slimmer bbl of the govt should disperse heat FASTER b/c it has less metal retaining the heat; h/w, it would also heat up faster b/c it has less material to heat up...

HBARs take longer to heat up, but once heated up, they also take longer to cool down

all bbls will loose accuracy w/ extended firing--but it would take a lot of constant firing
firing the same # of rounds, i would say that the above would happen

as to semi auto ARs and heat build up, it depends on how much ammo you shoot, how fast you shoot, and how long you shoot....inaccuaracy will happen in either one eventually

but if you are shooting that fast, then i dont think that YOU will be that accurate anyways....

you could opt to have the bbl profiled, or you could just replace your bbl w/ a gov bbl and sell the HBAR

The rifle sure balances better with the A2 profile.  IMHO the weight savings is significant.  I will never own another 20" HBAR.

I just sold my old HBARs on the EE, and bought new A2 barrels.

YES, its worth it.

You maybe interested in what I wanted to do?

http://www.ar15.com/forums/topic.html?b=3&f=4&t=251212


To have my HBAR barrel under hand guard cut with 1/8" fins 1/4" apart.

They are worth it.  Unless your competition shooting there is no need for an HBAR.

JMHO

Max

Quoted: YES, its worth it.

I agree.

Quoted: YES, its worth it.

+100%


Tom  

So is ADCO a good place to get profiling done at or are there better ones?

Quoted: The rifle sure balances better with the A2 profile.  IMHO the weight savings is significant.  I will never own another 20" HBAR. I just sold my old HBARs on the EE, and bought new A2 barrels.

+1

Also, can ADCO just profile it under the handguards and leave the same look in front of the Front Sight Base where you can see the barrel? Would this still be heavy this way or is the significant amount of the weight under the handguards?

Actually a bull barrel will disperse heat faster since it has more surface area...  Heat can only escape at a certain rate through the surface of the barrel...smaller the barrel dia, the less the surface area.

B

Too bad you aren't looking to buy a barrel, instead of having one recontoured.  There are a lot more gov't profile barrels on the market now.  Some company... oh.... "B" something, sells them...