The Alex Pro Firearms Guardian 5.56 NATO rifle is a modern, versatile AR platform built for hunters, sport shooters, and tactical enthusiasts who want a no-nonsense rifle ready to run optics out of the box. This 16-inch rifle combines a reliable piston gas system with a slim M-LOK handguard, giving you a lightweight, maneuverable platform that's equally at home in the field, at the range, or in a defensive role. The Flat Dark Earth finish blends durability with a professional aesthetic, and the included 30-round magazine means you're ready to go the moment it arrives.
At its core, the Guardian is built on proven AR architecture: a 4150 chrome-moly barrel with magnesium phosphate coating for corrosion resistance, a standard M16 bolt carrier group, and an M4-length adjustable stock that lets you dial in your ideal length of pull. The A2 pistol grip and A2 birdcage flash hider are field-proven controls, and the optics-ready receiver means you can mount your preferred sight without any guesswork. The 15-inch slim M-LOK handguard gives you plenty of real estate to attach lights, foregrips, slings, and other accessories without unnecessary bulk.
Whether you're setting up a new shooter, building a hunting rifle, or adding another 5.56 to your safe, the Guardian delivers solid performance without the premium price tag of boutique builds. It's straightforward, reliable, and ready to work.
| Caliber | 5.56 NATO |
| Barrel Length | 16 inches |
| Barrel Material | 4150 Chrome-Moly, Magnesium Phosphate Coated |
| Handguard | 15-inch Slim M-LOK |
| Bolt Carrier Group | M16 |
| Stock | M4 Adjustable |
| Grip | A2 Pistol Grip |
| Muzzle Device | A2 Birdcage Flash Hider |
| Receiver | Optics Ready (Picatinny Rail) |
| Magazine | One 30-Round Magazine Included |
| Finish | Flat Dark Earth |
Yes—the receiver features a standard flat-top Picatinny rail, so you can mount any optic with a standard Picatinny adapter. Whether you prefer a red dot, low-power variable scope, or magnified sight, you'll need a compatible rail-mounted base and rings, but the rifle itself is ready to accept optics without modification.
The 15-inch slim M-LOK handguard lets you attach modern accessories—lights, vertical grips, sling mounts, and rail segments—directly to the forend using standard M-LOK hardware. It keeps the rifle modular and lets you configure it for your specific role without excess weight or bulk.
The Guardian does not include backup iron sights; it ships optics-ready with a flat-top receiver and Picatinny rail. You'll need to source and mount your own optic or backup sights.
The 5.56 NATO with a 16-inch barrel is a versatile choice for target shooting, hunting smaller game, sport competition, and home or property defense. It balances velocity, accuracy, and handling for both field and range use.
Firearm Shipments:
To buy rifles or shotguns, you must be 18 years old, and for handguns, actions, or receivers, the minimum age is 21. By placing an order for this firearm, you confirm that you are the legitimate transferee/buyer, meet the legal age requirements, and comply with all Federal, State, and local laws and regulations necessary to purchase this firearm.
We only ship firearms to valid Federal Firearms License (FFL) holders. At checkout we provide a FFL locator for your convenience.
We will need a copy of the FFL’s license to facilitate the process, kindly request your dealer to email us a copy of their FFL, as we cannot dispatch the firearm until we receive this document. It is imperative for the buyer to choose their FFL dealer, ensure they are willing to facilitate the transfer, and have them email their FFL copy to BOSQUE Outdoors. To avoid any confusion, the customer's name or order number must be mentioned in the email containing the FFL.
Email: [email protected]
Alex Pro Firearms
Alex Pro Firearms
Alex Pro Firearms
Alex Pro Firearms
