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AirsoftParts AEG Ribbed Cylinder – Ported (200–400 mm)
AirsoftParts ported cylinder is a stainless steel cylinder for AEGs with an inner barrel length of 200–400 mm, such as M4 or MP5. Gen 1.2 features revised dimensions for better compatibility and a smoother inner surface. The cylinder has an inner diameter of 23.95 mm, a ground finish and cooling grooves around the outer circumference.
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AirsoftParts Stainless Steel Ported Cylinder – Gen 1.2
AirsoftParts ported cylinder is an AEG air seal component designed primarily for setups with an inner barrel length of 200–400 mm, typically including M4 or MP5 platforms. The port in the cylinder wall shortens the effective compression portion of the piston stroke, adapting the usable air volume to shorter inner barrels. Correctly matching the cylinder volume to the length and inner diameter of the barrel is important for efficient operation of the air seal system. The cylinder is made from stainless steel, has an inner diameter of 23.95 mm and a smooth inner surface for smooth movement of the piston head sealing O-ring. Gen 1.2 features revised dimensions for better compatibility and a smoother inner surface compared with the previous version. The manufacturer also specifies concentric machining, a ground surface finish and cooling grooves around the outer circumference. The cylinder weighs 31.3 g, is designed for V2 and V3 gearboxes, and the maximum recommended spring is M170.
Key Features
Ported Cylinder for 200–400 mm Barrels
The port in the cylinder wall adjusts the usable cylinder volume for AEGs with an inner barrel length of 200–400 mm, such as various M4 or MP5 configurations.
Smoother Gen 1.2 Inner Surface
The new Gen 1.2 features a smoother inner surface that promotes smooth movement of the piston head sealing O-ring and proper operation of the air seal system.
Stainless Steel Construction
The cylinder is made from stainless steel with a ground surface finish. The manufacturer also emphasizes concentric machining.
Revised Dimensions of the New Generation
The Gen 1.2 version uses revised dimensions for better compatibility with corresponding AEG air seal components.
Cooling Grooves Around the Outer Circumference
The outside of the cylinder features circumferential cooling grooves that are part of the design of this version.
Technical Specifications
- Designation: VAL-DIR
- Type: ported cylinder for AEG
- Generation: 1.2
- Size: standard
- Material: stainless steel
- Maximum recommended spring: M170
- Surface finish: ground
- Inner diameter: 23.95 mm
- Cooling grooves around the outer circumference: yes
- Weight: 31.3 g
- Compatibility: V2 and V3 gearboxes
- Recommended inner barrel length: 200–400 mm
Frequently Asked Questions (FAQ)
What Inner Barrel Length Is the Ported Cylinder Designed For?
The manufacturer recommends this cylinder for AEGs with an inner barrel length of 200–400 mm, such as various M4 or MP5 configurations. When designing a precise setup, the inner diameter of the barrel and the resulting cylinder-to-barrel volume ratio should also be considered.
What Is the Purpose of the Port in the Cylinder Wall?
The port means that effective compression begins only after the piston passes and seals the port as it moves forward. This reduces the usable air volume compared with a full cylinder and makes it better suited to shorter inner barrels.
What Is the Difference Compared With the AirsoftParts Full Cylinder?
The full cylinder uses the entire working volume, and the manufacturer recommends it for barrels 400 mm or longer. This ported version is designed for barrels 200–400 mm long, where the full cylinder volume is generally not required.
What Does the Gen 1.2 Version Offer?
According to the manufacturer, Gen 1.2 features revised dimensions for better compatibility and a smoother inner surface over which the piston head sealing O-ring moves during the operating cycle.
| Variants | 200–400 mm |
| Color | Silver |
| Body/receiver material | Metal |