Prometheus M4 G&G Rotary Hop Up Chamber (Wide Use)

Prometheus M4 Rotary Hop Up Chamber (Wide Use).  Metal precision made by Prometheus in Japan for use in specific M4 AEG airsoft gun types.  For use in Krytac rifles and G&G M4 guns (CM16, ARP, GC16, Firehawk, etc).  Does not include the bucking or nub, but does contain the rest of the parts.  A stepless rotary style adjustment dial.

An extremely well made hopup chamber for use in some specific guns.  This is not made for optimal use in Tokyo Marui, JG, or other types of "standard" M4 guns.  There are other chambers made for those gun models.

This unit works in both G&G and Krytac models.  Some packaging may vary branding, but it's the same chamber in all the different packages.

2022 Update: Dial is now purple.