Shilen AR-15 204 Ruger 24" Stainless Barrel and Bolt Set

Stainless steel barrel is precision machined to match-grade tolerances and custom-fit to its own bolt to give your rifle the exceptional accuracy of a custom-shop barrel in a drop-in package. Each barrel is assigned a bolt before any machining begins, then chambered to the correct headspace for that bolt. Button rifled for superior land-to-groove dimensions required for match-rifle accuracy, with a recessed 90Adeg target crown, and gas block shank machined to .001" tolerances for precise fit. Comes with M4-style barrel extension installed; extension has pre-cut feed ramp to help ensure reliable chambering of rounds. Available chambered in .204 Ruger with 24" heavy varmint/targe Mfg: Shilen SPECS: Stainless steel, natural finish. .223 Wylde - 20" (50.8cm) long, .750" O.D. at gas block. 1-8" twist, 6 groove rifling. .204 Ruger - 24" (60.1cm) long, .936" O.D. at gas block. 1-9" twist, 6 groove rifling.