Fobus Concealed Carry Passive Retention Paddle Left Hand Holster GL-42 ND LH Fits To Glock 42 Gun Fit: Glock 42 Holster Material: Mold injected RX18 Polymer formula Holster Mechanism: Passive retention with adjustment screw Passive Retention: Fobus passive retention system allows an instinctive and quick draw of the gun and is proven to be the most effective way to draw a weapon. The holster mechanism acts like a spring on the trigger guard area and holds the gun firmly in place. Adjustment Screw: For a more accurate retention pressure and personal preference