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7/21/2013 4:43:16 AM EDT
I am considering purchasing a .300 BO SBR.  I am trying to decide between the AAC MPW 9" or the PWS 12.75".  I have searched the net and read great things about both guns.  I like the idea of the piston from PWS as I plan to suppress it.  However, the 12.75" barrel is hardly an SBR to me.  I know the PWS is slightly more expensive too. Can anyone with experience chime in with opinions?
Thanks
7/21/2013 6:08:17 AM EDT
[#1]
There is no need for a piston with 300 BLK. I shoot my 8" Noveske suppressed no matter what I'm sending downrange, and though it is smokey, it runs like a top with subs or supers. If you're going to go short with 300 BLK 9" is the max I'd go. AAC is my vote between these choices.
7/22/2013 5:37:10 AM EDT
[#2]
Thanks for the reply!  It is a tough decision as I am more of a fan of the PWS but I am having trouble getting over the long 12.75" barrell, especially after I know they made a smaller barrel and stopped.
7/22/2013 4:09:56 PM EDT
[#3]
I also suggest the 9"- never heard a complaint about 300 AAC with shorter barrels. Especially if you're going to add a can.

You may want to look around at 300blktalk.com- I've seen some discussion there about  problems running subsonic ammo with piston gas systems.

FWIW I love my AAC 9" upper- never had a problem with it.
7/22/2013 6:10:41 PM EDT
[#4]
Definitely the AAC.

Shorter is more better when suppressed.
7/23/2013 2:23:24 AM EDT
[#5]
Thank you all for the replies!  The AAC is is!  It seriously was a tough decision for me and I needed some opinions.  I felt they are both great guns so that made it hard.
7/23/2013 2:53:30 AM EDT
[#6]
yea definitely made the right choice (I made the same one 2 weeks ago haha, have a MPW 9" on layaway right now). PWS does make a really good kit but they should definitely offer a 8" 300 BLK option if they want to actually compete in the 300blk market. they'd do really well with that I'd think.

although I have to say, when noveske starts coming back in stock I'm likely to get a 8.2" build going with one of their barrels. shorter the better imo.
7/23/2013 1:29:42 PM EDT
[#7]
AAC for 300 factory upper is the best choice.

I have a 9" on a pistol lower(no sbr in WA) and it will run anything, supers, subs with or w/o suppressor.

My friend bought a PWS because he the the piston would  run better. It will not cycle subs w/o a can.
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