Coming Soon. The pictured prototype is 3D printed. The final product will be Aluminum. These will be NFA items. The overall length of the rifle with the stock collapsed is roughly 17".
 
Some Details for the final production Mini MK18
 
7075 Aluminum Upper & Lower Receiver
Enhanced Charging Handle
Chambered in .22LR or .17HMR
6.3" M-lok Handguard
7.125" Barrel
Collapsible Stock
2 Magazines included