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American Tactical Inc. 5.56mm NATO Upper features a 16" 1/8 twist barrel that is shrouded by a 15" Free Float MLOK Handguard. The upper and handguard are both Flat Top, Optics Ready Picatinny Rails (The handguard is T-Marked). These uppers DO NOT include the Bolt Carrier Group, but do include a standard Mil-Spec charging handle.
Specifications and Features: