Company AKM GROUP – CZ a.s. continues its exploration of modern firearms developments. This carbine combines mobility, compactness, and effectiveness in real-world conditions.
One such solution is the Double FoldAR, chambered in 300 AAC Blackout — a weapon designed for units that require high maneuverability and the ability to operate in confined spaces.
Technical Specifications and Design Features
– Caliber: .300 AAC Blackout
– Barrel Length: 9″ (22.9 cm)
– Overall Length: 25-3/4″ (65.4 cm)
– Length when Folded: 10-3/4″ (27.3 cm)
– Width when Folded: 5-3/4″ (14.6 cm)
– Weight: 2.8 kg
– Gas Block: Fully adjustable, diameter .750″
– Rifling Twist Rate: 1:7
– Muzzle Device: A2 Compensator, thread 5/8″-24
– Barrel: 4150 alloy steel with QPQ “Melonite” coating
– Bolt Carrier Group: Modified, shortened Bootleg Inc. bracket, adjustable gas block, MPI bolt, nitrided coating
– Trigger Mechanism: ALG Defense CMC
– Rail System: Magpul M-Lok
– Lower Receiver: FoldAR FLDR15
– Generation: 2023
– Series: “Arex”
Practical Uses of the .300 AAC Blackout Caliber
The .300 AAC Blackout caliber is used in situations where the following are required:
- Effective performance with a short barrel
- Reduced sound signature when using subsonic ammunition
- Compatibility with standard AR platform magazines
- Increased stopping power at short and medium ranges
These features make the system optimal for mobile assault units, operations in dense urban environments, and tasks where both compactness and quick transition to combat mode are critical.
Compatibility with AR Platforms
- The .300 Blackout works with existing AR-15 / M16 magazines, making upgrades easier: typically, only the barrel needs to be replaced.
- This offers a significant logistical advantage, especially for those who already have a lower receiver for 5.56 mm — there’s no need to purchase new magazines or replace many parts.
Ammunition Flexibility
- Both supersonic and subsonic rounds are available for the .300 Blackout.
- Subsonic “subsonic” loads are often used with suppressors, significantly reducing noise — one of the key advantages of this caliber.
- Bullet weight can vary greatly: from light for supersonic loads to heavy for subsonic ones.
Ballistics and Performance
- With a short barrel (e.g., 9″), the .300 Blackout delivers good performance, especially at close ranges, where it “hits harder” than the standard 5.56 mm, particularly when using subsonic rounds.
- Compared to the 7.62×39 cartridges, the .300 Blackout can offer a better ballistic coefficient (BC), especially for heavier bullets, which provides an advantage at medium ranges.
Use in “Special” Conditions
- This caliber is often considered for “compressed approach” shooting: compact SBR (short-barreled rifle) or pistol versions of AR, especially when paired with a suppressor. This makes the .300 Blackout popular among shooters who value mobility and low noise.
- With a properly tuned adjustable gas block, the operating mode can be changed for different types of ammunition (supersonic/subsonic), offering flexibility.
Advantages of the Double FoldAR Design
- The key engineering feature is the dual folding mechanism, which significantly reduces the weapon’s size and allows it to be transported in a compact form without losing functionality.
- This configuration enhances operator mobility and enables the weapon to be used in situations where traditional solutions would be too bulky.
Popularity Among Shooters
- The .300 Blackout remains popular among shooters who value the ability to shoot with short barrels or a suppressor.
- Many firearm enthusiasts create “.300 BLK versions” by upgrading their AR platforms, changing only the upper receiver or barrel.
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