TOKYO MARUI M4A1 CQB-R Block1 GBB Airsoft - Black

A New-Generation M4 Shorty That Evolves Flexibly

The CQBR is designed to adapt the M4 for close-quarters combat (CQB) in confined spaces such as indoor environments by replacing the upper receiver—including the barrel—to create a 10.3-inch short-barreled configuration. Among the three main versions of the CQBR, the model known as “Block 1” is now available as a gas blowback machine gun!
Equipped with new mechanisms—such as the Z-System developed for the M4A1 MWS—it achieves both high durability and operational performance while pursuing realistic aesthetics and texture. Furthermore, with enhanced compatibility for optional parts, it’s a rifle that’s easy to handle even in tight spaces.

Key Features

• Intense Blowback Equipped with a blowback engine featuring a large piston with a diameter of approximately 19 mm. The bolt operates in sync with firing, allowing you to experience an unprecedentedly intense recoil shock.
• High Durability Durability against intense recoil shock has been enhanced through features such as the new Z-System mechanism, which prevents wear and damage to the bolt catch; a piston absorber, friction relief bolt roller, and other components that reduce stress on internal parts caused by bolt operation; and a barrel clamp mechanism that prevents loosening due to recoil and keeps the barrel centered at all times.
• Realistic Moving Mechanisms It faithfully reproduces authentic functions, such as loading the first round by operating the charging handle, engaging the bolt catch after opening the bolt and changing the magazine, and a crane-type stock adjustable to six different lengths. Additionally, field stripping (routine disassembly for maintenance) can be performed in a manner similar to the real thing.
• Equipped with a Metal R.A.S. It is equipped with an R.A.S. (Rail Adapter System) featuring mounting rails on all four sides of the handguard—top, bottom, left, and right. In addition to the standard KAC-type vertical foregrip, various optional parts compatible with the Picatinny standard (20mm width) can be attached. The heat shield inside the R.A.S. has also been faithfully reproduced.
• Mil-Spec Cerakote Finish The upper and lower frames, as well as the bolt, feature Cerakote—a coating known for its strength and excellent scratch resistance. You can also enjoy a texture that feels just like the real thing.
• Adjustable Front and Rear Sights The front sight can be adjusted up and down using the included adjustment tool. Additionally, the LMT-type rear sight allows for fine adjustments in both the vertical and horizontal directions via separate dials.
• Compatible with Various Muzzle Options By removing the muzzle compensator, you can attach muzzle options such as silencers that use a 14mm reverse-thread specification.
• Die-Cast Aluminum Magazine With a capacity of 35 rounds, the die-cast aluminum magazine reproduces the “weight of a real magazine fully loaded with rounds.”