**Fits Gen2 DPMS short frame gunsMany have asked us to build a barrel with the same workmanship as our UltraMatch barrels while keeping it more affordable. We are able to reach our goal by sourcing a very high end barrel blank at an affordable price. We start off using a high precision match blank in 1:10 twist, machine it to the highest quality and matched with our limited-life time warranty, you have a barrel that is the best value, hands down, in the industry. We are so confident in our Match barrels that we will offer a 100% money back guarantee within 90 days of purchase. If you aren't completely satisfied with the barrel for any reason, return it for a full refund, no questions asked.We offer a 1:10 twist to accommodate to a wide range of bullet weights. Guaranteed to shoot sub-MOA with match grade ammo.The Rainier Match Chamber is a modified .308 WIN-7.62 NATO chamber to produce ultimate reliability and accuracy shooting both the 7.62 NATO & .308 WIN rounds.Features:Stainless Steel Match Grade BlankLength: 18"Twist: 1:10Gas Block Seat: .875 DiameterThread Pitch: 5/8X24Weight: 2 lbs 9.7 oz.308 Rainier Match ChamberRifle Gas System6 GrooveM4 Feed RampsProprietary ContourBead Blasted Finish