Alex Pro Firearms Guardian 5.56 Blk 16 Mlok M4 30Rd Optics

Alex Pro Firearms Guardian 5.56 NATO M4 Carbine - 16" Barrel, M-LOK Handguard, 30-Round Magazine, Optics-Ready, Black Finish

Alex Pro Firearms
SKU:
120919663
|
UPC:
691835329437
$898.88
$1,199.99
(You save $301.11 )
Current Stock:
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Product Specifications
Capacity-Rounds:
30
Caliber-Gauge:
223 Remington / 5.56 NATO
Finish-Color:
Black
Barrel Length:
16"
Barrel Length Range:
16" to 16.99"
Product Overview

The Alex Pro Firearms Guardian 5.56 NATO M4 carbine is a practical, optics-ready rifle built for shooters who want a modern platform without unnecessary complexity. With a 16-inch barrel, M-LOK handguard, and pre-drilled for a optics mount, this rifle bridges the gap between an AR platform that's easy to customize and a complete package that works out of the box. Whether you're training at the range, setting up a home-defense rifle, or building a modular setup, the Guardian gives you a solid foundation in 5.56 NATO.

The 16-inch 4150 chromoly barrel is mag-phosphate coated for corrosion resistance in field conditions. The 15-inch slim M-LOK handguard offers real estate for mounting lights, lasers, or slings without excess weight or bulk. The rifle ships with a 30-round magazine and an A2 flash hider to manage muzzle blast—useful for indoor range work or when every decibel counts. An M4-style adjustable stock and A2 pistol grip round out the ergonomics, familiar to anyone who's run an AR platform.

Alex Pro Firearms engineered this carbine with modularity in mind. The optics-ready upper receiver accepts standard picatinny rail mounts, so you can choose your own glass. The M-LOK slots throughout the handguard let you dial in your accessory layout without drilling or permanent modifications. Strip it, upgrade it, or run it stock—the Guardian plays well with the AR ecosystem.

This is a no-nonsense rifle for shooters who understand that reliability beats hype. Build your fighting rifle your way.

Key Features

  • 16-inch 4150 chromoly barrel with mag-phosphate coating for durability
  • 15-inch slim M-LOK handguard for lightweight accessory mounting
  • Optics-ready receiver with picatinny rail integration
  • 30-round magazine included
  • A2 flash hider to reduce muzzle signature
  • M4-style adjustable stock for cheek weld and length-of-pull customization
  • Black finish

Specifications

Caliber5.56 NATO
Barrel Length16 inches
Barrel Material4150 chromoly, mag-phosphate coated
Handguard15-inch slim M-LOK
StockM4 adjustable
GripA2 pistol grip
Muzzle DeviceA2 birdcage flash hider
Magazine Capacity30 rounds (included)
FinishBlack

Frequently Asked Questions

What optics will mount on this carbine?

The Guardian has an optics-ready upper receiver with standard picatinny rail mounting. Any optic designed for a picatinny rail—whether it's a red dot, holographic sight, or low-power variable scope—will work. You'll need to source a mount separately based on your optic choice.

Is the M-LOK handguard modular?

Yes. The 15-inch slim M-LOK handguard has M-LOK slots that accept standard M-LOK-compatible rail segments and accessories. This lets you add lights, slings, or vertical grips exactly where you need them without permanent modifications.

What's included in the box?

The carbine ships with a 30-round magazine. Optics and additional accessories are not included and must be sourced separately.

What does "optics-ready" mean?

The upper receiver is pre-configured with the mounting surface and picatinny rail needed to attach an optic. You don't need gunsmithing; just select your optic and a compatible mount, and you're ready to zero and shoot.

Additional Information

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]

  • Prior to placing an order, it is the buyer's responsibility to understand and adhere to their state's firearm regulations.
  • The buyer should verify with their receiving dealer that the chosen firearm is legally permissible in their state.
  • The buyer is accountable for any transfer fees or background check charges imposed by the receiving dealer. If the designated dealer declines to accept the firearm delivery, the buyer assumes responsibility for shipping costs to retrieve the firearm and resend it to an accommodating dealer.
  • Handguns will be shipped using air transportation, while long guns can be shipped using ground methods. If your order includes a mix of firearm and non-firearm items, BOSQUE Outdoors will send the firearm(s) to your selected FFL dealer and the remaining non-firearm items to your billing address.
  • Firearms cannot be returned to BOSQUE Outdoors; please contact the manufacturer for warranty claims.
  • Firearms refused by the FFL Dealer or which cannot be transferred due to a failed background check are subject to a $75 restocking fee plus 10% of the purchase price.