KA Tech Carbon “Blackout” Skeletonized Polarstar Jack HPA M4 milsim It’s the go to engine

It’s the go to engine for many HPA users because it’s the most beginner friendly HPA engine if you were to instal

It comes with a hi-cap magazine (wind up style) that can hold 320rds

If you'd like to swap out any of the parts for different ones such as an HPA engine

1x Stock Adapter Plate

KA Tech Carbon “Blackout” Skeletonized Polarstar Jack HPA M4 milsim It’s the go to engineThis is KA Tech Airsoft's Carbon "Blackout. It uses handcrafted carbon and aluminum together to create the ultimate CQB M4 Internals are finely tuned to work together as one cohesive unit. If you'd like to swap out any of the parts for different ones such as an HPA engine, please let us know. Polarstar Jack Retro arms Hopup Maple leaf bucking Flat Hop ZCI 6. 02 200mm inner barrel "Blackout" is a handcrafted Polarstar HPA rifle made for CQB and fast