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4/18/2014 6:18:30 PM EDT
Has anyone added a switchblock to their 300?  I know its not needed, but would like to know how much quieter it'll be as a single shot. I have an extra pistol lower lying about and was thinking of using a side charge upper from Crosshill with a noveske 8".  

http://www.joeboboutfitters.com/Crosshill_Technologies_XSR_15_Side_Charge_Upper_R_p/cht-xsr-15-rh.htm
4/19/2014 4:49:41 AM EDT
[#1]
I bought an adjustable gas system for this purpose and have never used it
4/21/2014 3:17:48 PM EDT
[#2]
I have heard rumors that closing off the gas port may add enough extra pressure to make a sub-sonic round... supersonic.
4/21/2014 3:41:55 PM EDT
[#3]
I've got a bunch of people running my patented block for 300 BLK.

Unlike the Switchblock, my design will work under most rail systems and uses an un-modified standard gas tube.

It also is modular so you can swap regulator plates for your needs.



Here are a couple links where customers that posted that are running 300BLK.

http://www.ar15.com/forums/t_6_20/422639_Do_I_need_an_adjustable_gas_block_.html

http://www.300blktalk.com/forum/viewtopic.php?f=145&t=84762&start=0







Plenty more info, vids and pics on my site:  micromoa.com


4/22/2014 9:45:54 AM EDT
[#4]
I'd be willing to give this gasblock a try, any discounts for forum members?
4/23/2014 6:12:29 AM EDT
[#5]
Sorry, only for LE/Mil and dealers right now.  We are running pretty low on stock right now and still working on getting the next run for black oxiding.  

You will notice that due to all the variances on 300BLK that we don't offer a block ready to go for 300BLK as there are so many variables.  If you know the port size in your barrel, I'd be happy to drill out the regulator plate to your specifications at no charge.

Thanks!
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