Proudly made in the USA! Glock 19 Gen 3 Compatible Handgun Slides with Trijicon RMR base pattern cut slide. Serrations on the front improve the performance of your Gen 3 Glock 19 and are perfect for building with the Polymer80 frames. Manufactured out of 416 Stainless steel. They feature an attractive Black DLC finish or choose from other coatings. Optic thread pattern is 6-32 x 3/8. A black polymer RMR cover plate is included. These slides are tested to work with our Ported Barrels.