T-N.T. S&T KAR 98K UPGRADE RETROFIT KIT UNIP and molded-in vent holes are

and molded-in vent holes are integrated with the shell to provide increased airflow and reduce heat stress

Do you want a hair trigger for those split second shots

Screws right onto any 14mm CCW threaded barrel

Keep track of your equipment with this marker

T-N.T. S&T KAR 98K UPGRADE RETROFIT KIT UNIP and molded-in vent holes areFeatures : S&T Kar98K upgrade HOP chamber (for old ver. Kar98K) Aluminum CNC one piece HOP chamber, full covered HOP bucking design, more better air seal. HOP lever joined T N. T. original HOP positioning nub design, enlarged HOP pressure area, standard using TR HOP VSR bucking and S+ precision dual inner diameter eclipse air cushion inner barrel, the shooting performance is greatly improved!! S&T Kar98K internal upgrade kit Effort saving springs