Precision machined from 416 stainless steel, this premium quality barrel for GLOCK 17 9mm is manufactured for a tighter fit, improved lockup and greater accuracy. Customized with Ed Brown Tread Flutes. Designed for a drop-in fit in Gen4 GLOCKS. Threaded options for use with a suppressor or other device. Thread size is 1/2 x 28 tpi RH. Overall length from back of hood to end of threaded barrel: 5.035a ^2. Twist rate: 1-16 LH. Available in Black Nitride finish, or Titanium Nitride TiN (gold color) finish. Thread protector included. DISCLAIMER: This product is not manufactured, authorized, endorsed or warranted by GLOCK. GLOCK does not warrant or represent that this product is compat Mfg: Ed Brown