The Matrix Arms Enigma Slide is compatible with Glock 19 Gen 3 platform builds. Slides are fully manufactured by Matrix Arms. Made out of Heat treated 416 stainless steel. Featuring RMR cut on the rear. These slides are manufactured with ONE thing in mind and that is QUALITY! They are produced with only the finest manufacturing processes and machinery available in modern day. Unique serration pattern featured on the side of the MX19 slide gives maximum grip when charging your slide and throughout a much larger surface area! FeaturesSlides include RMR CoverHeat treatUnique serration patternDISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.