AirsoftParts Hop-Up Unit Shims

AirsoftParts hop-up unit shims allow fine adjustment of the hop-up unit position relative to the nozzle and magazine. The stainless steel shims are only 0.1 mm thick and help resolve BB feeding issues or air leaks between the nozzle and hop-up bucking. Dimensions of 11.1 / 14.5 mm allow use with most common hop-up units. The package contains 3 pieces.

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AirsoftParts Hop-Up Unit Shims

This expert product description was prepared by the ANAREUS.cz expert team. All rights to this unique content are tied to the anareus.cz domain.AirsoftParts hop-up unit shims are designed to precisely fine-tune its position relative to the nozzle and magazine. Even a small deviation in unit positioning can affect how the nozzle seats against the hop-up bucking or how the magazine feeds BBs into the feed channel. The shims are only 0.1 mm thick, allowing the unit position to be adjusted in very small increments and helping resolve feeding issues or air leaks between the nozzle and hop-up bucking. Each shim is made from corrosion-resistant stainless steel and has an inner diameter of 11.1 mm and an outer diameter of 14.5 mm. These dimensions allow use with most common hop-up units. When fine-tuning, we recommend starting with one shim and checking magazine feeding, free nozzle movement and the air seal after each adjustment.

Key Features

Precise Adjustment in 0.1 mm Increments

Each shim is only 0.1 mm thick, allowing very fine adjustment of the hop-up unit position within the assembly.

Fine-Tuning the Position Relative to the Nozzle

Correct unit positioning helps ensure proper interaction between the nozzle and hop-up bucking and can help eliminate air leaks caused by incorrect alignment between these components.

Helps Resolve Feeding Issues

Shimming the unit allows its position relative to the magazine and nozzle to be fine-tuned, which can help resolve inconsistent or unreliable BB feeding.

Corrosion-Resistant Stainless Steel

The shims are made from stainless steel without any additional surface treatment and their precisely defined thickness makes them suitable for fine mechanical adjustment.

Dimensions for Most Hop-Up Units

The 11.1 mm inner diameter and 14.5 mm outer diameter allow the shims to be used with most common hop-up units.

Technical Specifications

  • Model: PODL-UPS
  • Type: hop-up unit shims
  • Material: stainless steel
  • Surface finish: none
  • Thickness per shim: 0.1 mm
  • Inner diameter: 11.1 mm
  • Outer diameter: 14.5 mm
  • Possible adjustment with 3 shims: 0.1 / 0.2 / 0.3 mm

Package Contents

  • 3× hop-up unit shim – 0.1 mm

Frequently Asked Questions (FAQ)

What Are Hop-Up Unit Shims Used For?

They are used to fine-tune the position of the hop-up unit relative to the nozzle and magazine. Correct positioning can help improve BB feeding and nozzle contact with the hop-up bucking.

Can the Shims Help With Air Seal Issues?

Yes, if the air leak is caused by incorrect alignment between the nozzle and hop-up bucking. However, air leaks can also have other causes, so we recommend checking the bucking, nozzle and other air seal components as well.

How Many Shims Can Be Used at the Same Time?

The package contains three 0.1 mm shims, allowing adjustments of 0.1 mm, 0.2 mm or 0.3 mm. In practice, we recommend starting with one shim and adding more only as needed based on the result.

Are the Shims Compatible With All Hop-Up Units?

The dimensions of 11.1 mm inner diameter and 14.5 mm outer diameter allow use with most common hop-up units. However, due to differences in design and tolerances, we recommend checking the dimensions of the specific unit before installation.

Variants0.1 mm
ColorSilver
Body/receiver materialMetal
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