Spring Piston ARs - great summary of info
Posted: Sat Jul 25, 2015 10:13 am
American Airgunner round table does it again. The information is succinctly put and is a great resource. Enjoy.
https://www.youtube.com/watch?v=3yQ37mg4PCg
https://www.youtube.com/watch?v=3yQ37mg4PCg