This back-bottle style Internal Air ASA fits the Bolt platform and pairs with the Thunderbolt lower/trigger frame. It lowers the bottle or stock down by 1 inch from the bore axis of the marker to give better clear of viewing to improve aiming. Best is pairing this drop down ASA with the Thunderbolt trigger frame.
**When using Tank in Stock you will need the Hinge/Swivel Guide Rod**
- Tacamo Bolt
- Tacamo MKV