CO2 Sealing Ring ASG (Ref 7-04 / 7-05 / 7-11) Piercer Fixing Ring
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  • CO2 Sealing Ring ASG (Ref 7-04 / 7-05 / 7-11) Piercer Fixing Ring
  • CO2 Sealing Ring ASG (Ref 7-04 / 7-05 / 7-11) Piercer Fixing Ring
  • CO2 Sealing Ring ASG (Ref 7-04 / 7-05 / 7-11) Piercer Fixing Ring

CO2 Sealing Ring ASG (Ref 7-04 / 7-05 / 7-11) Piercer Fixing Ring

€8.50
Tax included

Fixing Ring 7-11 or 7-07 or 18199_7-04

Quantity

In Stock - Delivery to Parcel Shop / Locker: 3 to 7 business days

Fixing Ring ASG – Original Part

Small part, big impact: this fixing ring ensures the sealing and proper maintenance of internal seals in your CO2 replicas for consistent performance shot after shot.

Description Fixing Ring Valve for Dan Wesson, CZ75 and Steyr M9-A1

  • Brand: ASG (ActionSportGames), official manufacturer of airsoft parts.
  • Role: retaining ring / support for O-ring seal for the CO₂ system, contributing to internal sealing.
  • Position: integrated into the valve block / CO₂ percussion system, in association with seals 7-11 and 7-12 on certain kits.
  • Material: metal, robust alloy to withstand
  • Type of propulsion: CO2 (only)

For the same part, depending on the replica models it has different names and different references.

Names of this part

  • Piercer Retention Ring,
  • Piercer Fixing Ring,
  • Seal Threaded Ring,
  • Seal Retaining Screw

References of this part

  • #7-04
  • #7-05
  • #7-07
  • #7-11

Functioning and utility of the Piercer Retention Ring

The ring properly holds the sealing O-ring (7-11) around the gas passage area, preventing CO₂ leaks.

It stabilizes the moving parts of the valve block, limiting play and power variations per shot.

Simple mounting for any user already familiar with basic disassembly of a CO₂ replica (access to the valve block / grip).

Compatibility of the Piercer Fixing Ring

Part found in many ASG replicas:

  • ASG P-07 part #7-05
  • ASG DUTY part #7-05
  • ASG CZ75 part #7-05
  • ASG STI part #7-05
  • ASG Schofield
  • ASG Steyr M9-A1 part #7-11
  • ASG Dan Wesson 715 part #7-04 (all 6mm and 4.5mm versions)
  • ASG Dan Wesson Classic part #7-04
  • ASG X9
  • ASG 17309 BERSA THUNDER 9 PRO part #7-11
  • ASG BERSA BP9CC part #7-05

but also in other brands Umarex, Wingun H8R revolver...

Airsoft technician's opinion

"The ring that often breaks during disassembly of this cursed green seal! Official ASG (ActionSportGames) part, guaranteeing a millimeter-perfect fit.

During assembly, take advantage of it to lubricate your seals with silicone oil for perfect sealing."

K-E7E8-2177110158438-16090_7-11

Data sheet

Product type
Airsoft spare parts / Upgrade
Brand
ASG
Material
Metal

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