Unlock the potential of your firearm with the Sylvan Arms 9mm Glock conversion block, a seamless drop-in solution that equips your lower with 9mm capability without the need for a separate pistol Cal specific option. Effortlessly installed in Mil-Spec lowers, this conversion block mirrors the simplicity of a standard rifle magazine, ensuring a hassle-free transition. Experience the versatility and convenience of the Sylvan Arms 9mm Glock conversion block, elevating your shooting experience to a whole new level.