20-Inch CNC Aluminum Outer Barrel with 14 mm CCW Thread for M4/M16 AEG - 5KU

The 5KU 20-inch outer barrel is designed for M4/M16 AEG airsoft replicas and is an ideal choice for SPR, DMR builds or as a replacement for the original outer barrel. Precision CNC-machined from aluminum, it offers an excellent balance of durability and lightweight performance.

Its one-piece construction provides increased rigidity and improved stability for the front assembly of the replica. The barrel features a standard 14 mm CCW (counter-clockwise) thread, making it compatible with most mock suppressors, tracer units, and flash hiders designed for airsoft replicas.

Features

• Brand: 5KU

• Model: 5KU-135

• Compatibility: M4/M16 AEG airsoft replicas (Tokyo Marui standard and compatible clones)

• Length: 20 inches (approx. 508 mm)

• Material: CNC-machined aluminum

• Construction: One-piece

• Muzzle thread: 14 mm CCW (negative thread)

• Color: Matte Black

• Lightweight yet highly durable construction

• Ideal for SPR, DMR, and long-barrel rifle builds

The 5KU outer barrel combines robust construction, high-quality machining, and excellent compatibility with M4/M16 AEG platforms, making it an excellent choice for upgrades and custom builds.