Masterkey
An attachable pump-action shotgun for AR-15-pattern rifles with an M203 mount. Also includes M203-to-Picatinny and Picatinny-to-M203 adapters!Details
1.0.0 - 4/6/2025
- Initial release
1.1.0 - 4/14/2025
- Added Picatinny-to-M203 adapter (god help us all)
- Increased sensor and interface trigger sizes for M203-to-Picatinny mount