Tippmann M4 Airsoft ASA tank Adapter #T550004 BBs & Accessories The two rearmost o-rings capture

The two rearmost o-rings capture all of the air released and forces it through the bolt to fire the ball

As an added bonus

O-ring sealed at all interfaces

This gear bag will allow you to take everything with you to the field

The Sight is equipped with a 7 Position Rheostat (3 positions in each color) so you can set the brightness level that is right for your scenario

Tippmann M4 Airsoft ASA tank Adapter #T550004 BBs & Accessories The two rearmost o-rings captureM4 Tank Adapter Installs in minutes Allows you to attach a co2 or HPA tank to your M4 The M4 Tank Adapter allows you to screw in a co2 or HPA tank directly into the bottom of the grip. The advantage to using a co2 or HPA tank is the incredible number of shots youll get. Most players can shot all day without refilling. Its the most economical way to play. Shots per source: (actual results may vary due to atmospheric conditions, tests performed at 72F)