Change the profile of your KRISS Vector CRB with the 16" Enhanced Barrel Shroud. It is designed to fit both the GEN I and GEN II KRISS Vector CRB models for all calibers. This is the newer, square profile barrel shroud, introduced shortly after the Gen 2 Vector.
If using the Vector CRB Enhanced Shroud with the Gen 1 Vector, it will prevent use of the integrated light receptacle. This barrel shroud is not compatible with the Mk9 and Mk11 Vector Modular Rail handguards.
The Vector barrel shroud is not a barrel extension. It is only compatible with the Vector CRB with 16" barrel and is a cosmetic component only. It is non-threaded and can not be used with any other Vector barrel length.