From Blackhawk’s website:
Designed for civilian concealed carry or range use, the SERPA CQC Sportster Holster is constructed of injection molded polymer for long-lasting durability. It features the same dependable SERPA technology but is specifically tailored for low-threat civilian operation.
• SERPA® Auto Lock™ release
• Passive retention detent adjustment screw
• Gunmetal gray holster body with black locking mechanism
• Speed-cut design for rapid draw, target acquisition and re-holster
• Includes paddle platform only
• Fits Shoulder, S.T.R.I.K.E., Quick Disconnect and Tactical Holster Platforms