Sionics Weapon Systems is testing what they are calling Reduced Gas Port Barrels. If you own a silencer, this is sure to make your day. The barrels will feature smaller than typical gas ports to help mitigate the extra back pressure created by suppressors. The smaller gas port will also reduce perceived recoil and, as you can see from the test video, they run well even without a can mounted.
The barrels are slated to be offered in 16″ mid-length and 11.5″ carbine gas configurations. Check out the test video on Sionics Weapon Systems’ YouTube channel and stay tuned for more details.