Model 6001 Sentry-Self Locking System QLS Kit It includes a self-locking feature

It includes a self-locking feature - a hook that slides under the bottom of the belt to keep the pouch secure on the belt

It is also far less likely to release accidentally than conventional thumb break snaps

an internal locking device that retains the weapon in all directions with no snaps or straps to manipulate

(58 mm) military belts

Designed for use with a loop lined underbelt such as the Safariland Model 992

Model 6001 Sentry-Self Locking System QLS Kit It includes a self-locking featureThe 6001 Sentry provides additional security to the SLS holster system. It attaches to any SLS holster and increases the level of retention by one. Available in Black.