ATI MILSPORT AR Pistol | .300 BLK | 8.5″ | 30rd | ATIG15MS300ML7B

The ATI MILSPORT AR-style pistol is an optics-ready, semi-automatic platform chambered for .300 AAC Blackout and built with an aluminum receiver and a 7″ M-LOK free-float handguard. It ships with a 30-round magazine and a threaded muzzle suitable for common 5/8×24 accessories. For a red-dot option under $1,000 that pairs well with the MILSPORT, consider a Vortex Sparc AR or a comparable compact reflex sight for fast, close-range target acquisition.

Designed for range training and field utility where a compact AR-style pistol is desirable, the MILSPORT emphasizes modularity and accessory compatibility on a compact platform.

Product Specifications

• The manufacturer is American Tactical Inc (ATI).
• The model is MILSPORT.
• The caliber is .300 AAC Blackout.
• The action type is Semi-Auto.
• The barrel length has multiple reported values (7.5″ and 8.5″); see notes.
• The rate of twist has multiple reported values (1:7″ and 1:8″); see notes.
• The magazine capacity is 30 rounds.
• The package includes 1 x 30-round magazine.
• The handguard is a 7″ M-LOK free-float aluminum handguard.
• The upper is a flat-top optics-ready upper with full-length Picatinny rail.
• The frame/receiver material is Aluminum.
• The grip material is Polymer.
• The muzzle is threaded (5/8×24).
• The optic footprint is Picatinny.
• The UPC is 810113112923.

The MILSPORT is built to accept a wide range of modern accessories and optics while remaining compact enough for short-range applications and transportable utility tasks. Its aluminum receiver and free-float M-LOK rail provide a stable mounting surface for sights and accessories, and the included 30-round magazine supports extended range sessions or field use where higher capacity is required by the user. Optics-ready controls mean adding a red-dot or low-power variable optic is straightforward, and the threaded muzzle supports common muzzle devices or suppressor mounts where legal.

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