DryFireMag for Double Stack 9/40/357/.45 GAP Glocks w/ Spring Kit

The DryFireMag for Double Stack, Small Frame Glocks will allow you to practice your dry fire technique without having to remove your support hand to cycle the slide of your pistol. This DryFireMag is set to simulate a factory Glock 5.5 - 6lb trigger weight. Features: No More Racking the Slide to Reset the Trigger Practice Double Taps Builds Proper Muscle Memory Provides Audible & Tactical Trigger Simulation Does Not Use Pistol's Firing Pin Pays for Itself in Ammo Savings Practice Safely in Your Own Home Compatible Firearms: G17 G19 G19x G22 G23 G26 G27 G31 G32 G33 G34 G35 G37 G38 G39 G44 G45 G47 Please NOTE: Not for 10mm and .45 ACP Glocks.