The ATI Omni Hybrid Maxx in 300 Blackout is a modern, modular rifle built for shooters who want a compact platform with real versatility. Chambered in 300 BLK with a 16-inch barrel and 1:8 twist rate, this rifle splits the difference between rifle ergonomics and space-efficient handling—ideal for tactical work, home defense, or hunting where a shorter overall length matters without sacrificing ballistics. The M4-pattern lower paired with a 6-position stock lets you dial in your preferred length of pull, while the 15-inch M-LOK handguard gives you ample rail real estate to mount optics, lights, or other accessories exactly where you need them.
300 Blackout has earned a serious following for subsonic and supersonic hunting applications, and this rifle's 1:8 barrel is optimized to handle both. Whether you're running supersonic loads for velocity and range or subsonic ammunition for sound signature and precision, the Omni Hybrid Maxx delivers the platform flexibility to experiment and adapt. The M-LOK slots along the handguard ensure you're not locked into proprietary mounting—standard M-LOK accessories from any reputable manufacturer will fit seamlessly.
ATI built the Omni Hybrid line to deliver AR ergonomics and customization without unnecessary cost. This is a rifle that respects a shooter's need to configure their tool rather than accept a fixed setup. Field-stripping and maintenance follow standard M4 patterns, so if you've worked on modern rifles before, you know what to expect.
| Caliber | 300 Blackout |
| Barrel Length | 16 inches |
| Barrel Twist Rate | 1:8 |
| Stock | 6-position M4 |
| Handguard | 15-inch M-LOK |
| Platform | M4-pattern lower receiver |
This rifle is chambered in 300 Blackout, also called 300 BLK. You'll find commercial ammunition in both subsonic (typically 190–220 grain, under 1,125 fps) and supersonic (usually 110–150 grain, over 2,000 fps) loadings. The 1:8 barrel twist is optimized to stabilize standard 300 BLK projectiles across that range.
Yes. The upper receiver is drilled and tapped for Picatinny rail mounting. You'll need to add your optic separately; none is included with the rifle.
The Omni Hybrid Maxx is chambered in 300 Blackout instead of 5.56 NATO, which delivers larger, heavier bullets at shorter effective ranges. 300 BLK is popular for hunting, close-quarters tactical applications, and subsonic shooting where noise signature matters. The 16-inch barrel and 1:8 twist are specifically configured for 300 BLK performance.
The lower receiver and M4 stock follow standard AR platform patterns, so M4-compatible parts will fit. However, the barrel and upper are specific to 300 Blackout, so ammunition compatibility is the critical factor. The M-LOK handguard accepts any standard M-LOK accessories.
ATI Outdoors
ATI Outdoors
ATI Ammunition
