300 Blackout 9.5 or 10.5 inch barrel

kstone803 · Jan 24, 2017

I'm looking to pick a barrel for a 300 Blackout SBR build. I'm looking for between 9.5 and 10.5 inches and was hoping to find one that comes with an installed pinned gas block. So far I've only seen the Noveske barrels with a pinned block installed. I know I could have it done but it would be easier if I could just order it done. Also anybody have experience with the KAK value barrels? If I have to get a barrel without a block and have it pinned I was thinking about going with the KAK. Thanks in advance.

vgplayer · Jan 24, 2017

http://ballisticadvantage.com/ar-parts/ar-barrels/300-blackout.html
Hanson Series are pinned. Others are an additional $40

Faxon barrels sold @ Aimsurplus are also pinned
http://www.aimsurplus.com/product.a...LACKOUT+4150+CMV+Steel+AR+Barrel&groupid=6485

outrider58 · Jan 24, 2017

Noveske barrels come with plocks pre-drilled along with the block and the pin. They are not yet installed. You would not be able to put a barrel nut on of it were already installed.

If you plan to ever suppress this gun, you will want an adjustable gas block one one sort or another. With the Noveske, a "Switch Block". With any other barrel, I recommend SLR adjustable block set screw type, pinned on.

kstone803 · Jan 24, 2017

outrider58 said:
Noveske barrels come with plocks pre-drilled along with the block and the pin. They are not yet installed. You would not be able to put a barrel nut on of it were already installed.

If you plan to ever suppress this gun, you will want an adjustable gas block one one sort or another. With the Noveske, a "Switch Block". With any other barrel, I recommend SLR adjustable block set screw type, pinned on.

So I was reading into this over on some other sites and the majority of what I read was the adjustable gas block wasn't necessary except for manufacturers who drill oversized gas ports. The intent is to suppress the gun and rarely run supers through it. Planning to put in the paperwork for the SBR and suppressor at the same time (come on tax returns!!). Looking at the YHM Phantom LT.

outrider58 · Jan 24, 2017

You've picked the right can. The Lt and LTA are great cans. I have one I use on my 300 and one of my 5.56s. Zero POI shift on either gun.

I built my 300 using a Rainier 10.5" Ultramatch barrel. No matter what setting I put on my block(even all the way open) it would not cycle lead bullet subs. Took it to see Chad. The port was too narrow so he opened it up. Now she eats everything I feed her. 300 blks can be very finicky eaters. Over gasing is even more detrimental to your gun. If you go with the Noveske, I highly recommend the switch block. I just put one on my 5.56 SBR. I haven't gotten it to the range yet though.

F-Stop · Jan 24, 2017

I am using an 8.2 noveske and run 95% suppressed. It runs supers fine also. If I was going to do it again, I may go 10.5 for more hand room upfront.

j_h_smith · Jan 24, 2017

I doubt it will make much of a difference. Just remember, you've go the reach that 29.1 inch overall length.

Wfilardo · Feb 19, 2017

Go with the 10.5 and you won't have any length issues with a standard buffer tube and stock.

300 Blackout 9.5 or 10.5 inch barrel

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