The American Tactical Imports Milsport is a semi-automatic rifle chambered in .300 AAC Blackout with a 16-inch threaded barrel (5/8x24). The flat top receiver accepts standard optics mounts, and the 15-inch M-LOK handguard gives plenty of rail space for lights, grips, or other accessories without adding much weight. Controls include an A2 pistol grip and a two-position thumb safety. Finish is matte black. Ships new in box. 
 

Key Specifications 

• Manufacturer: American Tactical Imports 
• Model: Milsport 
• Type: Modern Sporting Rifle 
• Caliber: .300 AAC Blackout 
• Barrel Length: 16 inches 
• Capacity: 30+1 rounds 
• Weight: 6.95 lbs 
• Finish Color: Matte Black 
• Condition: New in Box

The ATI Milsport in .300 AAC Blackout draws a mixed but generally positive response. The price point is the most consistent compliment — it's one of the more affordable ways to get into the .300 Blackout platform, and the lightweight build makes it comfortable to shoot for longer sessions. The .300 BLK cartridge itself is well suited to both supersonic and subsonic loads, which gives it flexibility that shooters notice.

On the downside, some owners report feeding issues or accuracy inconsistencies depending on ammunition. Build quality criticism comes up when comparing it to higher-end AR-platform rifles. Most of the negative feedback is from experienced shooters who find certain components underwhelming rather than defective.

As an entry-level .300 Blackout rifle it satisfies most buyers, though shooters with more demanding requirements tend to look at pricier options.