Abstract: A gun retention system is provided for an officer to securely lock his weapon inside his holster while at the same time allowing quick and easy drawing of the weapon and maintaining a physical connection between the weapon and the officer's security belt. The gun retention system comprises a weapon grip, a security belt, and a spool housing. The weapon grip contains a connector which attaches to the security belt and can be either right-handed or left-handed. The other end of security belt is connected to a spool and is coiled around the spool inside the spool housing. The spool housing can be mounted on the service belt directly behind an existing holder or can be integrally attached to a holster. A spool lock button on the spool housing provides safe and quick locking and unlocking of the gun inside the holster. The security belt does not interfere with the officer's ability to load, draw, aim and fire his weapon when needed. Tension in the security belt can be adjusted to the officer's desire.