Tokyo Marui CQB-R Block 1 Gas Blowback Rifle: A New Era of the M4 'Shorty': Evolving Flexibly for Close Quarters
 
■Equipped with variable hop-up system
■Full auto/semi-auto fire
 
full length: 698 mm / 780 mm (at maximum stock extension)
gun length: 250 mm
weight: 3,110 g (with empty magazine installed)
bullet: 6mm BB (0.2~0.25g)
power source: gas
mag capacity: 35
 
Introduction
The M4 platform, known for its adaptability, has entered a new era of flexibility with the introduction of the CQBR (Close Quarters Battle Receiver). This innovative design replaces the upper receiver and barrel, resulting in a compact 10.3-inch barrel. The CQBR is a game-changer for close-quarter battles (CQB), especially in tight, confined spaces.
 
Originally developed exclusively for U.S. military special forces, the Colt M4A1 Carbine has rapidly transcended its exclusive origins. Its exceptional performance in close combat (CQB) has led to widespread adoption among airborne divisions and the Marine Corps. This versatile weapon has, in recent years, taken on a pivotal role as a substitute for the entire American military.
 
The Knights' RIS Revolution
In the late 1990s, a significant turning point occurred with the introduction of the Knights' Rail Interface System (RIS). This revolutionary enhancement equipped the handguard with four-sided mounting rails, laying the groundwork for the next phase of evolution. As a result, a diverse array of new accessories, including optical equipment, silencers, and flashlights, began to emerge, expanding the M4A1's capabilities manifold.
 
Tailoring for Versatility
Additionally, the M4A1 now offers the flexibility to accommodate a range of accessories, such as grenade launchers that can be securely attached to the barrel. This modular approach allows operators to customize their M4A1 for specific mission requirements, ensuring readiness for diverse situations without the need for a complete weapon overhaul.
 
Global Impact and the Rise of the "Modular Weapon System"
The M4A1's influence has transcended American borders. With active service in Afghanistan and Iraq, it played a key role in pioneering the "Modular Weapon System." This system, characterized by the attachment of various optional parts to a compact and lightweight carbine equipped with a rail, has been embraced by many nations. The M4A1's systematic use of military accessories has ushered in a new era of firearms technology, earning its place in the annals of firearms history.
 
In summary, the Colt M4A1 Carbine, initially developed for U.S. military special forces, has transformed into a global force. Its adoption across military divisions and its evolution into a modular weapon system have cemented its legacy as an iconic and influential firearm in the world of close combat.
 
Evolving CQBR: The "Block 1" Model
Among the three primary versions of the CQBR, the "Block 1" stands out as a remarkable gas blowback machine gun. It boasts new mechanisms, including the Z system originally developed for the M4A1 MWS. This addition ensures both remarkable durability and operational excellence, staying true to the M4's iconic shape and texture. Furthermore, the CQBR has been enhanced with a range of optional parts, making it exceptionally versatile, even in the most challenging environments.
 
Key Features
 
Intense Blowback Action
Powered by a blowback engine utilizing a substantial 19mm piston, this system offers an unparalleled recoil experience. The bolt's synchronized operation with each shot provides an exceptionally realistic and intense recoil shock.
 
Unrivaled Durability
The incorporation of the Z-system presents a range of enhancements. It prevents wear and damage to the bolt catch, features a piston absorber, and includes a friction relief bolt roller to minimize stress on internal components during bolt operation. The barrel design ensures no loosening due to recoil, maintaining precise alignment. These features collectively enhance the weapon's durability against strong recoil.
 
Realistic Movable Components
The CQBR authentically replicates the original's functionality. Operations such as loading the first round by manipulating the charging handle, bolt catch engagement after opening the bolt, magazine changes, and a crane-type stock with six-stage length adjustments mirror reality. Field stripping for maintenance closely resembles real-world disassembly.
 
Equipped with Metal RAS
A Rail Adapter System (RAS) integrated into the handguard provides mounting rails on all four sides—top, bottom, left, and right. This versatile system accommodates various Picatinny-standard (20mm width) accessories, including the standard KAC-type vertical foregrip. The heat shield within the RAS has been faithfully reproduced.
 
Mil Spec Paint Cerakote
The upper/lower frame and bolts boast Cerakote finishes, featuring a robust coating film with excellent scratch resistance. This meticulous attention to detail ensures a texture and appearance remarkably close to the real thing.
 
Adjustable Sights
The CQBR allows for precise sight adjustments. The front sight's elevation can be finely tuned using the provided adjustment tool. Additionally, the LMT-type rear sight offers vertical and horizontal adjustments through user-friendly dials.
 
Muzzle Options
By removing the muzzle compensator, users can attach a 14mm reverse threaded muzzle option, such as a silencer, to suit their preferences.
 
Aluminum Die-Cast Magazine
The inclusion of an aluminum die-cast magazine with a 35-round capacity replicates the weight of a fully loaded real magazine, providing an authentic feel and experience.
 
What's included
CQBR gas airsoft rifle, magazine (35 rounds), foregrip, protective cap, adjustment tool, handling precautions/instruction manual, charger, charging rod, cleaning rod, BB bullet (0.2g/100 rounds)
 
The CQBR "Block 1" emerges as a groundbreaking addition to the M4 family, adapting seamlessly to the demands of close-quarter combat. Its robust design, attention to detail, and unparalleled performance set it apart as a remarkable evolution in the realm of firearms technology.