Ar-15/m16 300 Blk 16”” Barrel & Bolt Set – Ar-15/m16 16”” 300 Blk Barrel/bolt Set Ss 5/8-24

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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 90° 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. Mfg: Shilen SPECS: Stainless steel natural finish.