You can put the gun underwater and start shooting when you pop out as opposed to having to wait for water to drain out of the di system before you can shoot. It's cleaner and you can run more rounds in between cleaning. Personally I went with the di system since it had less moving parts and it has worked and been trusted for the past 30 years.RECIT wrote:What makes the piston guns so much better in your opinion?austin wrote:Don't get a direct impingment AR15 - the new gas piston models are so much better.
LWRC is the best among the bunch.
Sputz