Tokyo Marui M4 GBB Block 1 CQBR SOPMOD BLOCK 3. (DDC)
Marui GBBR has Intense blow back and realism, equipped with a new blow-back engine that employs a large piston with a diameter of about 19mm.
The bolt also operates in conjunction with the cylinder, you can enjoy unprecedented intense recoil shock.
New mechanism Z- system to prevent wear and damage to the bolt catch, piston-absorbers and friction relief bolt roller to reduce the burden on the internal parts, Marui have have improved the durability of the intense recoil shock.
Adjustable STR type stock.
7 inch KAC style RIS with 20mm slot
Single shot and full auto fire modes.
Front and rear flip up sights.
Adjustable Hop unit.
Aluminum die-cast magazine: 35 shots
14mm counter clockwise thread.
