Alex Pro Firearms 5.56 Pistol 2.0 10.5 Mermaid Mlok
$1,424.17
$1,599.00
(You save
$174.83
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The Alex Pro Firearms 5.56 Pistol 2.0 10.5 Mermaid M-Lok is a modern, purpose-built AR pistol engineered for shooters who want a compact, maneuverable platform without compromise. Built on a billet receiver set with ambidextrous controls, this 5.56 NATO semi-auto delivers the reliability of a rifle in a package that's equally at home for home defense, truck gun duty, or short-range tactical training. The standout Tactical Mermaid Cerakote finish turns heads at the range while the 10.5-inch 4150CM nitride-coated barrel with 1:7 twist provides real-world velocity and accuracy in a short form factor.
Where this build really shines is in the attention to detail from Alex Pro Firearms. The carbine-length gas system feeds a diamond-honed nitride M16 bolt carrier group, pairing smooth, reliable cycling with the APF adjustable gas block for tuning to your ammo and setup. The APF 4.5 lb. drop-in trigger breaks cleanly and predictably, while the SBA3 pistol brace gives you a solid shooting platform whether you're running it as a short-range performer or transitioning to an SBR setup down the road. Grip comfort comes from a Magpul MOE, and the 9-inch M-Lok handguard gives you genuine real estate for mounting lights, lasers, or other accessories without adding unnecessary bulk.
This is not a budget build—it's a fully-featured, well-spec'd 5.56 AR pistol that respects your time and money. Whether you're a shooter looking to add a nimble 5.56 to your safe or someone who wants a compact, accurate short-barreled platform, the Mermaid 2.0 delivers capability in a package that actually works. The ambidextrous controls mean you don't have to compromise your shooting style, and the adjustable gas block means you can dial in performance rather than accept whatever the gun gives you.
Key Features
- 10.5-inch 4150CM nitride-coated barrel with 1:7 twist rate for 5.56 NATO
- Carbine-length gas system with APF adjustable gas block for tuning
- Diamond-honed nitride M16 bolt carrier group for reliability and smooth cycling
- APF 4.5 lb. drop-in trigger for clean, predictable breaks
- Billet receiver set with ambidextrous controls for either-hand operation
- SBA3 pistol brace for a solid shooting platform and brace compatibility
- 9-inch M-Lok handguard for mounting accessories
- Magpul MOE grip for comfort and control
- Tactical Mermaid Cerakote finish for distinctive looks and durability
- Semi-automatic action, 5.56 NATO caliber
Specifications
| Caliber | 5.56 NATO |
| Barrel Length | 10.5 inches |
| Barrel Material | 4150CM steel, nitride-coated |
| Barrel Twist | 1:7 |
| Gas System | Carbine-length |
| Bolt Carrier Group | Diamond-honed nitride M16 style |
| Trigger | APF drop-in, 4.5 lb. pull weight |
| Receiver | Billet aluminum with ambidextrous controls |
| Handguard | APF 9-inch M-Lok |
| Brace | SBA3 pistol brace |
| Grip | Magpul MOE |
| Action | Semi-automatic |
| Finish | Cerakote (Tactical Mermaid) |
| Material | Aluminum receivers |
Frequently Asked Questions
What is the barrel length and what does it offer?
The 10.5-inch barrel strikes a balance between velocity and compactness, ideal for close-quarters shooting, defensive work, and truck-gun applications. With a carbine-length gas system and 1:7 twist, it handles standard 5.56 NATO loads reliably.
Is this gun ambidextrous?
Yes. The billet receiver set includes ambidextrous controls, so both left and right-handed shooters can operate the safety and charging handle from their preferred side.
What sights come on this pistol?
The Mermaid 2.0 ships without front or rear iron sights, giving you a clean slate to add your choice of optic mounts, red dots, or other aiming solutions.
Can I adjust the gas block?
Yes. The APF adjustable gas block allows you to tune the amount of gas cycling the bolt carrier group, so you can dial in reliable performance with different ammunition types and loads or when running various accessories.
