Airsoft guns were in the beginning created to comply with Japan’s rules and regulations on gun control. A freon-silicone oil combination was used to the gas to propel the BBs in the early models, later moving to your propane-silicone oil mixture. Could it be the realism you’re interested in? Or https://garrettfvhoy.angelinsblog.com/32171274/a-simple-key-for-actual-guns-three-d-unveiled