The RetroArms CNC Air Nozzle – 21mm is a high-precision upgrade designed to improve air seal, feeding reliability, and overall consistency in your AEG build. Made from durable CNC-machined aluminum, this nozzle features an internal O-ring to maximize air pressure delivery between the cylinder head and hop-up chamber.
Perfect for custom setups or replacements, this 21mm nozzle is ideal for specific M4, MP5, or other platforms that require this exact length. Its anodized finish enhances durability and corrosion resistance, making it a dependable component for high-performance builds.
Features
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CNC-machined aluminum construction
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Internal O-ring for enhanced air seal
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Designed for AEG gearboxes requiring a 21mm nozzle
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Precision fit for consistent feeding and compression
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Anodized for wear resistance and long-term performance
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Compatible with most Version 2 and Version 3 platforms (check length requirements)
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Manufactured by RetroArms – Czech Republic
Specifications
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Length: 21mm
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Material: CNC Aluminum
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O-ring: Integrated internal O-ring
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Compatibility: AEG platforms requiring 21mm nozzle (e.g., some M4/MP5 variants)
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Weight: ~1.5g
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Color: Varies (typically red or silver)
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Brand: RetroArms
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Origin: Czech Republic
What’s Included
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1x CNC Air Nozzle – 21mm
Important Notes
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Confirm nozzle length requirements for your specific AEG model
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For best results, use with a high-quality cylinder head and hop-up chamber
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Professional installation recommended for optimal air seal tuning
Disclaimer
⚠️ This part is intended for airsoft use only. Not compatible with real firearms.
