The DCPrecision Competition Speed Holster is designed specifically for and only works with Glock pistols equiped with our Competition Frame Weight. This is the perfect option for anyone that competes in USPSA or Steel Challenge and wants a holster that provides the absolute smoothest and fastest draw possible. A manual locking system ensures that your pistol will stay securely holstered throughout the day. An adjustable passive retention allows the individual user to dial in exactly how tight they want the gun.