Zaffiri Precision G19 Gen 1 4 Barrel Flush and Crown Stainless Strobe Also included in the package H168BPR COOFF Also included in the package is a versatile microfiber pouch 45 Single 666406063379 A616 BP 2 A616 BP 2 Black 9mm Double 666406112176 A616 BP 0 A616 BP 0 Black 9 Zaffiri Precision G19 Gen 1 4 Barrel Flush and Crown Stainless Specifications Compatible for for Glock 19 Gen 1 4 will be too short for Gen 5 Length: Flush and Crown flush with end of slide inward œcrown shape Twist: 1 10 Quality: 416R Stainless Steel Stress relieved and heat treated to RC 40 42 Polished feed ramp for easy feeding Target crown and oversized lock up area Made to work with Lead