MAC:The AR is not Direct Gas Impingement, it's Piston Driven
Posted: Mon Jan 21, 2019 9:50 am
Been trying to explain this to people for years but basically gave up a long time ago.
The AR is not Direct Gas Impingement, it's Piston Driven
https://youtu.be/ZYuuFSxcDTs
The AR is not Direct Gas Impingement, it's Piston Driven
https://youtu.be/ZYuuFSxcDTs