Laylax's Koji "No. 63" presents the Proto Gear Arts M4 Upper Frame Hot Rod Style that should be available this month. The M4 upper frame, designed with the ultimate survival game in mind, eliminates all unnecessary elements for a streamlined and lightweight build. By integrating the hand guard, charging handle, and bolt forward assist knob, significant weight reduction is achieved.

When installed on the KRYTAC electric gun TRIDENT MK2 PDW-M, it lightens the load by about 580g. The design allows for a hook grip and quick handling due to the absence of extra protrusions. The hand guard is lower and thinner than standard models, enabling optimal flashlight positioning for less interference with sighting.

This design allows BB bullets to be fired into the inner circle of the light in confined spaces. The muzzle’s threaded part has a 14mm reverse threaded steel insert, offering versatility for various muzzle attachments.