ATI MILSPORT AR-15 5.56 NATO 16″ 60+1 M-LOK

The ATI MILSPORT AR-15 is a semi-automatic rifle built with metal-reinforced polymer upper and lower receivers to reduce weight while maintaining structural durability. It features a 16″ barrel, a 15″ free-floated M-LOK handguard and an M4-style stock for familiar ergonomics. The flat-top receiver is optic-ready and the barrel is threaded with a 1/2×28 pattern for muzzle device compatibility.

Key Specifications

• Chambered in .223 REM/5.56 NATO for common ammunition compatibility.
• The barrel length is 16″ for a balance of maneuverability and velocity.
• The feeding capacity is listed as 60 + 1.
• The action type is Semi-Auto for standard AR-15 operation.
• The handguard is a 15" M-LOK free-floated rail for accessory mounting.
• The receiver material is Aluminum with metal reinforcement in polymer housings.
• The stock is a M4-style (Rogers Super Stock) for adjustable-length ergonomics.
• The barrel twist rate is 1-in-8″ as specified.
• The barrel is threaded with a 1/2×28 muzzle thread pattern.
• The listed weight is 9.05.

Designed for range work, training, and practical field applications, the MILSPORT combines lightweight construction and accessory-ready features to serve a range of shooting disciplines. Its optic-ready receiver and extensive M-LOK real estate make configuration straightforward, while the included high-capacity magazine supports extended sessions without frequent reloads. For shooters who value straightforward, serviceable AR-pattern platforms, the ATI MILSPORT offers a capable foundation that adapts to a variety of setups and roles.