Veteran Made USA Milspin Glock Backplate Milspin CNC Milled 3D Knockers Slide Back Plate Butt Plate Compatible With Glock Gen 1 5 Models G17 G41 G45 I Made In Usa Left Facing Knockers Glock Back Plate Glock Gen 1-5 Compatible All Milspin products are CNC engraved; CNC milled engravings are made by using computer-aided design (CAD) software to create a digital model of the engraving, which is then translated into a set of instructions that a CNC machine follows to precisely mill the design into the material; The process involves using a cutting tool, such as a rotating end mill, to remove material from the surface of the material, creating the desired pattern or design b>CNC Milled Slide Back Plate Compatible with Glock Gen 1-5 I Engineered to Perfection Milspin magazine base plates are designed, engineered and manufactured in Columbus, Ohio Machined to +/-0., 003 tolerances Precision Machined Milspin Glock slide back plates are designed, engineered and manufactured in Columbus, Ohio Machined to +/-0., 003 tolerances Finish: Cerakote ceramic coating; Cerakote coatings offer several benefits, including enhanced durability, corrosion resistance, and chemical resistance; They also provide improved lubricity and reduced friction, making them ideal for high-wear applications Cerakoted for maximum durability Milspin Glock Magazine Plates Sizing Made Simple Milspin Magazine plates fit ALL Glock generations (1-5) and are manufactured in three sizes to fit the following models: 17/17L/18/19/19X/22/23/24/26/27/31/34/35/45 , 20/21/29/41 , 43X/48 Milspin Slide Back Plate Compatible With Glock Gen 1-5 | American Flag | Veteran Made In USA I CNC Milled (Thin Blue Line, Models G17-G41, G45 Precision machined and meticulously engraved with our industrial CNC mills, the Slide Back Plates are a premium upgrade to the Glock lineup