Airtech Studios Maxx Advanced Hop-Up Chamber Inner Barrel Ring

The Details Fully lock on the inner barrel and hop-up chamber.  Elongated O-ring to latch onto the inner barrel. Stabilized System Prevents any vibrational shift on the hop set-up. Improve shooting consistency. Tough Polycarbonate Construction. 6x silicone o-rings are also included with the package used to replace the spring that goes along the inner barrel. Tests incrementally you need for a perfect fit. Compatible with all Maxx hop-up chambers on the M4 platform. In general, anything that moves in the rifle especially in the hop-up/ inner barrel should be strictly locked down to eliminate the factors that could affect the consistencies of the shots fired. This upgrade is for those who would strive for absolute perfection for their gun setup. Compatibility MAXX CNC Aluminum Hop-up Chamber ME - PRO & SPORT MAXX CNC Aluminum Hop-up Chamber MI - PRO & SPORT MAXX CNC Aluminum Hop-up Chamber SV - VFC SCAR-L/H MAXX CNC Aluminum Hop-up Chamber ME - Umbrella Armory Version MAXX C