AIRTECH STUDIOS Marui NGRS Hop-up Chamber & Inner Barrel O-Ring

The new locking ring is longer to block more of the inner barrel and the surface area of ??the hop-up chamber to further stabilize the system. In general, anything that moves on the rifle, especially the internal barrel / hop-up, must be strictly blocked to eliminate factors that could affect the consistency of the shots. This update is for those who strive for absolute perfection in their weapon setup. Features: · Completely locks the inner barrel and Hop-up chamber· Elongated O-ring to better engage the inner barrel· Prevents vibrations between barrel and chamber· Improves shot consistency· Strong polycarbonate construction· 5 O-rings are also included silicone to replace the spring that runs along the inner barrel. Test incrementally for a perfect fit.Compatibility: TM HK16 & HK16C Series TM HK17 Series TM M4 SOPMOD Series TM Scar L & Scar H