My new 300blk build

[Rapier46]

So i'm looking into doing a PDW 300blk Ar piston driven build. I need all the help and advice i can get. I was actually just looking to buy a complete pws but have been pondering a build. Any suggestions.

This upper I'm selling is a piston driven 300 blk complete upper. Could also sell my complete bushmaster lower d you were interested.

http://www.canadiangunnutz.com/forum/showthread.php/1318881-Complete-300-blk-upper-PWS-MK109

 

[cr5]

So i'm looking into doing a PDW 300blk Ar piston driven build. I need all the help and advice i can get. I was actually just looking to buy a complete pws but have been pondering a build. Any suggestions.

If you want a factory piston operated rifle you can't go wrong with the PWS, I used to have one in 300BLK with 9.75 inch barrel but sold it after my 300BLK build was finished. I still own a 12 inch PWS in 223, wonderful rifles. My 223 has close to 6000 rounds through it without any issues at all.
You really don't need a piston operated rifle if you think you need it for the cleaner/cooler factor. A DI rifle is just as reliable and usually about $500 cheaper.