RetroArms CNC Stainless Cylinder – Type E (470–650 mm)

RetroArms CNC stainless steel cylinder for AEG guns

This expert product description was prepared by the ANAREUS.cz expert team. All rights to this unique content are bound to the anareus.cz domain.RetroArms Type E CNC stainless steel cylinder is suitable for setups with an inner barrel length of approximately 470–650 mm. Selecting the correct cylinder type helps match the air volume to the barrel length, which is why RetroArms offers Types A to E for different barrel-length ranges. The cylinder is precision CNC-turned from 1.4541 stainless steel. Subsequent thermochemical treatment creates a surface with a hardness of 630 HBA and a black finish that also provides protection against corrosion. For correct movement of the piston head inside the cylinder, we recommend lubricating the cylinder with silicone oil rather than grease, as an excessively viscous lubricant can increase resistance and slow down piston-head movement during firing.

How to choose the correct RetroArms cylinder type according to barrel length?

The correct ratio between cylinder volume and inner barrel length is an important part of a properly assembled AEG. RetroArms therefore offers several cylinder types with different port positions and usable volumes. When choosing a cylinder, primarily consider the length of the inner barrel. The extended Type E is a separate version designed for the corresponding SR-25 / PSG-1 gearbox configuration.

Warning: The listed ranges represent the recommended barrel lengths for the individual RetroArms cylinder types. Type E cannot be substituted for a standard Type D cylinder based solely on barrel length – it is structurally extended by 10 mm and requires a corresponding SR-25 / PSG-1 gearbox.

Technical specifications

• Cylinder type: E
• Recommended inner barrel length: 470–650 mm
• Material: 1.4541 stainless steel
• Manufacturing: CNC turning
• Surface treatment: Thermochemical treatment
• Surface hardness: 630 HBA
• Recommended lubrication: Silicone oil

Package contents

• 1× RetroArms CNC stainless steel cylinder (Type E)

Frequently asked questions (FAQ)

What is the difference between RetroArms Type A, B, C, D and E cylinders?

The individual versions primarily differ in volume and the recommended inner barrel length range. Type A corresponds to 130–239 mm, Type B to 240–289 mm, Type C to 290–369 mm and Type D to 370–650 mm. Type E is extended by 10 mm and is designed for the corresponding SR-25 / PSG-1 gearbox configuration and barrels in the 470–650 mm range.

Should I lubricate the cylinder with silicone oil or grease?

We recommend lubricating it with oil. Grease can create greater resistance and therefore slow down piston-head movement during firing.

Is this cylinder also suitable for gas or manual airsoft guns?

No. According to the manufacturer, these cylinders are designed exclusively for TM-standard AEG airsoft guns. Before installation, it is also necessary to select the version corresponding to the specific setup and inner barrel length.