A protective and functional striker cap designed for an airsoft mortar tube
Airsoft mortars are simple, effective, and deeply impractical at the point of use. Striking a round involves cracking it open, fumbling with a small striker pad, and hoping dirt, water, or mud has not made its way into the tube. It works, but it adds friction to something that should be fast and repeatable.
The mortar striker cap was built to remove that friction. It combines a large, front-and-centre striker surface with a flexible cap that seals the mouth of the mortar tube when not in use. The result is a cleaner tube, a far more usable striking action, and a system that stays attached to the mortar at all times.
This was an early Harry Badger project and the first time a full idea was taken from concept to CAD to print to field use. Designed in FreeCAD and printed in TPU, the cap relies on flexibility rather than rigidity. That choice allows it to absorb impacts, survive rough handling, and accommodate small variations in tube diameter without cracking or loosening over time.
The elastic retention system gives the cap two stable states. Sealed when idle, and rotated ninety degrees to park securely while striking rounds. Nothing to unscrew, nothing to lose, nothing to line up under pressure.
It is not a prop or a novelty. It is a simple gameplay accessory that solves a real, repeatable problem in the field.