10.3" barrel - 1:9 HBAR OK? - Page 1

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[ARCHIVED THREAD] - 10.3" barrel - 1:9 HBAR OK?

Posted: 12/18/2014 10:59:55 PM EDT

Any reason not to cut down a standard 16" 1:9 HBAR to 10.3"? It was free (a buddy gave it to me, and I'll throw some money his way) and has an A2 FSB, barrel nut and gas tube. I shoot 55gr ammo exclusively, so I figure a 1:9 twist would be OK. Using a bunch of spare parts I have, I can assemble an old school MK18 upper (w/ carry handle and standard hand guards) for $90 plus the cost of cutting the barrel down.

Posted: 12/18/2014 11:16:26 PM EDT

[#1]

I loathe HBARS. They have very little purpose. The 1:9 twist rate just adds insult to injury.

Good thing it was free.

If I were you I'd have it re-profiled while you are having it cut/crowned. And so long as you are only shooting 55gr bullets then you should be ok.

Posted: 12/18/2014 11:24:14 PM EDT

[#2]

Quote History

Quoted:
I loathe HBARS. They have very little purpose. The 1:9 twist rate just adds insult to injury.

Good thing it was free.

If I were you I'd have it re-profiled while you are having it cut/crowned. And so long as you are only shooting 55gr bullets then you should be ok.

View Quote

I hate HBARs too, but I walked into my office this morning and it was sitting on my desk. I'd rather not spend another $80 on a profile job too.

Posted: 12/18/2014 11:38:45 PM EDT

[#3]

I have an 11.5" HBAR (Bushmaster, issued) and it's a pig. The profile job (or a different barrel) is worth it.

Posted: 12/19/2014 4:32:40 AM EDT

[#4]

Quote History

Quoted:

I hate HBARs too, but I walked into my office this morning and it was sitting on my desk. I'd rather not spend another $80 on a profile job too.

View Quote

I like the sound of your workplace.

I'd cut it and run it as is.

I wish I would have paid more attention to their pedigree when they were issued, but there have been CQBRs with (very) heavy barrels. I suspect they were cut down SOCOMs.

Posted: 12/19/2014 4:45:20 PM EDT

[#5]

Don't be afraid of the H-Bar, its just a barrel. As long a it fits, run it. The 9 twist is the best suited twist for most AR shooting. Don't forget to adjust the gas port.

Posted: 12/19/2014 9:25:24 PM EDT

[#6]

Coincidence thread. A friend just gave me his old 16" post-ban Colt HBAR barrel with neutered FSB ober tje weekend. I'm taking it to the gunsmith after the new year for a cut and thread to 10.5".

[ARCHIVED THREAD] - 10.3" barrel - 1:9 HBAR OK?

Armory » Short Barreled Rifles (SBR)

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