Zaffiri Precision match grade barrels for Glock 19. High quality performance you demand with an easy drop-in barrel upgrade. Compatible for Glock 19 Gen 1-4 will be too short in Gen 5 Length: Flush and Crown flush with end of slide / inward crown 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, plated or jacketed ammunition Large ZP Logo machined on the Port Side of the lockup. Made in the USA DISCLAIMER: GLOCK is a federally registered trademark of GLOCK, Inc. and is one of many trademarks owned by GLOCK, Inc. or GLOCK Ges.mbH. Neither Sportsmans Outdoor Superstore nor this site are affiliated in any manner with, or otherwise endorsed by, GLOCK, Inc. or GLOCK Ges.mbH. The use of GLOCK on this page is merely to advertise the sale of GLOCK pistols, parts, or components. For genuine GLOCK, Inc. and GLOCK Ges.mbH products and parts visit www.glock.com.