Expo Arms 5.56 NATO AR-15 Barrel - 13.9" - Enhanced Medium Profile - Chrome Lined - Mid Length

Description

The Expo Arms AR-15 Barrels are designed to give you a premium barrel at an affordable cost. This AR barrel is made from 4150 CMV steel and features a chrome lined bore to withstand high temperatures for a long barrel life. This 13.9” model features an enhanced medium contour with a mid-length gas system and .0785” port diameter for reliable function and softer recoil. Additionally, the .750 gas seat diameter is dimpled for securely attaching set screw gas blocks. The 1:7 twist rate is optimal for heavier 62 grain ammunition and the muzzle is threaded 1/2x28 for your favorite 5.56 muzzle device and is the perfect length for pinning and welding. If you are looking for a combat ready barrel that provides exceptional accuracy and reliability, you can’t go wrong with an Expo Arms M4 barrel.Features:13.9” Enhanced medium profile chambered in 5.56 NATOMid-Length gas system with .0785” port diameter.750” dimpled gas block shelfMade from 4150 CMV steelPhosphate finishChrome-lined chamber and b...

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