21.1mm CNC POM Air Nozzle for M4 AEG with Dual O-Rings

This 21.1mm CNC POM air nozzle is for M4 AEG applications that require the listed 21.1mm length and a matching nozzle profile. Its current published fields include a high-strength black POM body, CNC precision machining, a dual O-ring design, and 5-, 10-, or 20-piece pack options.

The M4 label narrows the application, but it does not by itself confirm the required listed length, nozzle profile, or surrounding component combination. Compare the original and replacement using the same documented measurement method before ordering.

Key Decision Specifications

• Listed length: 21.1mm
• Application direction: M4 AEG applications that require the listed 21.1mm length and a matching nozzle profile
• Product type: air nozzle
• Color: black
• Material: high-strength POM
• Manufacturing: CNC precision machined
• Seal: dual O-ring design
• Pack options: 5, 10 or 20 pieces

Why the 21.1mm Selection Matters

The listed 21.1mm value is one purchase decision field, not a complete compatibility result. The M4 platform label must be considered together with the required listed length, matching nozzle profile, hop-up chamber, cylinder-head tube, tappet-plate movement and bucking alignment.

The published `Dual O-Ring Design` describes the current product configuration. No air-seal, FPS, feeding or durability result is claimed without a documented JVAN test.

Who This 21.1mm Nozzle Is For

Choose this product for an M4 AEG application that requires the listed 21.1mm length and a matching nozzle profile. If the required length or profile is not documented for the intended assembly, review the original part and system information before selecting a pack.

For broader size selection, read the POM air nozzle guide and browse JVAN airsoft nozzles.

What to Check Before You Order

• Confirm that the original part or build specification lists 21.1mm.
• Compare the original and replacement using the same documented measurement method.
• Confirm that the nozzle profile matches the intended assembly.
• Check whether the intended hop-up chamber requires a specific nozzle length and interface.
• Confirm that the nozzle moves freely on the cylinder-head tube with the intended seal fit.
• Confirm tappet-plate engagement, full travel and return before powered testing.
• Verify nozzle-to-bucking alignment in the intended chamber.

Pack Options

• 5 pieces
• 10 pieces
• 20 pieces

The selected quantity changes the number of nozzles supplied. It does not change the listed 21.1mm length, M4 AEG application direction, POM material or dual O-ring design.

21.1mm vs 21.3mm JVAN POM Air Nozzles

JVAN lists separate 21.1mm and 21.3mm POM air nozzle products for M4 AEG applications. The listed values differ by 0.2mm. Do not assume interchangeability from that number or the M4 platform label alone.

Verify the required listed length, use the same documented measurement method, and check the matching nozzle profile and surrounding assembly. The 21.3mm product is shown here only as an adjacent size reference; this page does not rank either listed length by performance.

Buyer Questions

Is this product intended for M4 AEG applications?

Yes, for M4 AEG applications that require the listed 21.1mm length and a matching nozzle profile.

Does the M4 label guarantee fit?

No. The M4 label narrows the application, but it does not by itself confirm the required listed length, nozzle profile or component combination.

Will 21.1mm alone confirm the correct product?

No. Verify the required listed length, the documented measurement method, the matching nozzle profile and the surrounding assembly.

Can I substitute the 21.3mm product for this 21.1mm product?

Do not assume they are interchangeable. The listed values differ by 0.2mm; verify the specified length, measurement basis, nozzle profile and complete assembly.

What should I check before ordering?

Check the required listed length, the same documented measurement method, the nozzle profile, the intended chamber, movement on the cylinder-head tube, tappet-plate engagement and travel, and nozzle-to-bucking alignment.

What material and manufacturing fields are published?

The current product specification lists high-strength black POM and CNC precision machining.

What does Dual O-Ring Design mean on this page?

It is the current published seal-configuration field. No air-seal, FPS, feeding or durability result is claimed without a documented JVAN test.

Which pack sizes are listed?

The current options are 5, 10 and 20 pieces.

Verify the Listed Length, Then Choose a Pack

Verify the required listed 21.1mm length and matching nozzle profile, then choose your pack size. If the documented requirement lists 21.3mm instead, review the separate 21.3mm POM air nozzle product before ordering.