T-N.T. Studio APS-X Hop Up System Hop Up Chamber Kit for VFC HK416A5/ 416/ M27 Gen 2 GBBR

The T-N.T. Studio APS-X hop up system hop up chamber kit for the VFC HK 416A5, 416, M27 GBBR series is an upgrade over the stock chamber found on the original gun. The chamber is of aluminum construction.