B01 Dynamic Blowback Housing

The B01 Blowback Housing is precision CNC machined from 7075 aluminum for maximum durability and quality. Weighing only 18 grams, this blowback housing enhances cycling action and gas transfer. In addition, the specially designed piston head ensures the O-ring remains in perfect condition at all times. It minimizes air leakage during blowback operation, and the different sizes of anti-oil O-rings included can be adapted to commonly used nozzles on the market. It effectively eliminates slight wobble during nozzle movement.

Includes 3 different black O-ring sizes: 9.5 mm * 2 mm, 9 mm * 1.9 mm, and 9 mm * 2 mm (inner diameter * cross section).

The B01 Blowback Housing is compatible with Tokyo Marui Hi-CAPA / 1911 Series GBB airsoft pistols.

Key Features

• CNC machined aluminum construction.
• Ultra-lightweight design
• Durable construction prevents bending and deformation under heavy use
• Provides stable and smooth blowback cycling
• Available in black and silver

The piston screw comes loose by default during packaging. The user must tighten it during installation.

Strong threadlocker is required for installation. Apply a drop of threadlocker when installing the screw and allow it to cure overnight. The screw threads may be damaged if threadlocker is not used.