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The ATI Milsport 5.56 is a compact, modern pistol built for shooters who want serious firepower in a nimble package. At 7.5 inches, this short-barreled rifle delivers the handling characteristics of a pistol while chambered in 5.56 NATO—one of the most practical and affordable rifle cartridges available. The Milsport 5.56 comes configured with a stabilizing brace, M-LOK handguard, and a threaded barrel, making it equally at home on the range, in a defensive role, or as a truck gun for backcountry work.
What sets this build apart is its modularity. The M-LOK slots running the length of the handguard give you unlimited options for mounting lights, lasers, slings, or other accessories without guessing where everything goes. The 1/2x28 threaded barrel opens the door to suppressors and muzzle devices—critical if you're running this in a noise-sensitive environment or want to tame the report in the field. The included 30-round magazine means you're not short on capacity out of the box.
The short, handy profile makes the Milsport 5.56 ideal for close-quarters shooting, vehicle carry, or anyone who values maneuverability without sacrificing power. Whether you're zeroing in at 25 yards or pushing out to longer distances, the 5.56 cartridge is proven, reliable, and easy to feed in bulk. This isn't a rifle that pretends to be a pistol—it's engineered from the ground up to be both.
| Caliber | 5.56 NATO |
| Barrel Length | 7.5 inches |
| Handguard Type | M-LOK |
| Barrel Threading | 1/2x28 |
| Stock/Brace | Stabilizing Brace |
| Magazine Capacity | 30 rounds |
Yes. The 1/2x28 threading is the standard for 5.56 rifles and pistols, so any suppressor or muzzle device designed for that pattern will fit.
The ATI Milsport 5.56 ships with a 30-round magazine and is configured with the stabilizing brace, M-LOK handguard, and threaded barrel as specified.
Laws vary significantly by state and federal jurisdiction regarding short-barreled rifles and braced firearms. Check your local and state regulations before purchase.
M-LOK slots accept standard M-LOK mounting hardware and accessories. Simply slide your accessory's M-LOK foot into any available slot and tighten.

SKU: 145480380 • Weight: 7.17oz