90% Ported Cylinder Stainless Steel

90% Ported Cylinder Stainless Steel

The 90% Ported Cylinder Stainless Steel is a high-quality internal upgrade designed for most full-size AEG gel blasters. Installed inside the gearbox, this cylinder works with the piston assembly to compress air and generate the pressure required to propel gel balls down the inner barrel with consistent and efficient output.

Featuring a 90% ported design, this cylinder retains a larger air volume compared to lower-ported options, making it ideally suited to standard-length inner barrels found in most full-size M4, AR-style and rifle-length gel blasters. It delivers balanced air compression for reliable performance across general-use builds. The only setups where this cylinder is not recommended are ultra-long, DMR-style builds that require maximum air volume from a full, non-ported cylinder.

Manufactured from durable stainless steel rather than aluminium alloy, this cylinder offers enhanced strength, improved wear resistance and long-term reliability. The smooth internal finish supports a strong air seal against the piston O-ring, helping to maintain consistent compression over time. Whether you are refreshing worn internals or building a dependable skirmish-ready platform, the 90% Ported Stainless Steel Cylinder provides a versatile and durable solution for most standard AEG configurations.

90% Ported Cylinder Stainless Steel Features:

• 90% ported design suited to most full-size gel blasters
• Optimised air volume for standard inner barrel lengths
• General-purpose cylinder for everyday AEG builds
• Precision stainless steel construction for durability
• Smooth internal surface to promote a strong air seal
• Compatible with standard AEG gearbox piston assemblies

90% Ported Cylinder Stainless Steel Specs:

• Product Type: Gearbox Cylinder
• Porting: 90%
• Material: Stainless Steel
• Compatibility: Standard AEG gel blaster gearboxes
• Recommended Use: Full-size / standard barrel gel blasters
• Not Recommended For: Ultra-long DMR-style builds

For most standard rifle-length gel blasters, correct air volume matching ensures consistent performance and efficient compression. A 90% ported cylinder provides a near full-volume air supply while maintaining balanced airflow for common barrel lengths. Combined with the added durability of stainless steel construction, this cylinder offers a practical upgrade over typical aluminium alloy versions found in many stock builds.

To check out our full range of Cylinders, click here.

Please note: We always recommend that Tech work be carried out by a qualified, experienced Gel Blaster Technician. If you need us to install this cylinder in your blaster, please ask us for a quote.