he RetroArms CNC Adjustable Air Seal Nozzle (21mm–23mm) is a game-changing upgrade for advanced airsoft techs who demand perfect air seal tuning. This precision-engineered nozzle allows fine adjustments in length to match your cylinder head, hop-up chamber, and AEG platform, improving feeding reliability, compression, and FPS consistency.
Crafted from CNC-machined aluminum, this nozzle features a built-in O-ring and an internal spring-loaded system that allows the nozzle to extend or retract within the 21–23mm range. Ideal for custom builds, mismatched tolerances, or tuning nozzle-to-hop-up alignment.
Features
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Adjustable length from 21mm to 23mm
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CNC-machined from aircraft-grade aluminum
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Internal O-ring for superior air seal
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Spring-loaded adjustability for perfect hop-up contact
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Ideal for custom setups with tight tolerances
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Compatible with most AEG platforms (V2/V3)
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Made in the Czech Republic by RetroArms
Specifications
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Material: CNC Aluminum
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Adjustable Range: 21mm to 23mm
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Compatibility: AEG platforms (check chamber/nozzle spec)
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O-ring: Internal air seal ring
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Color: Typically red or silver (may vary by batch)
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Weight: ~2g
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Brand: RetroArms
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Origin: Czech Republic
What’s Included
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1x CNC Adjustable Air Seal Nozzle (21–23mm)
Important Notes
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Always measure and confirm correct nozzle length for your build
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For best results, pair with a high-quality hop-up chamber and cylinder head
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Professional installation is highly recommended
Disclaimer
⚠️ This is an airsoft upgrade part intended only for toy use. Not compatible with real firearms.
