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DonnyFL KOI Moderator 1/2x20 UNF

Precise. Rugged. Serviceable.

Overview
The DonnyFL KOI Moderator offers reliable, effective sound suppression in a mono-core design built for durability and easy maintenance. Precision CNC'd by a professional machinist and finished with sandblasted anodizing, the KOI is built to hold up to demanding, repeated use.

Key Features

  • Available in .22 and .25 caliber
  • Mono-core design
  • Precision CNC'd by a professional machinist
  • Sandblasted and anodized for durability
  • Swappable rear end caps: 1/2x20 Bolt, FX (M20x1) Bolt, or 1/2x20 Cone
  • Comes pre-wrapped in felt
  • Machined exterior grooves for easy handling

Performance Advantages

  • Mono-core design supports consistent, reliable sound moderation
  • Swappable end caps add flexibility across different setups and thread standards
  • Durable anodized finish and CNC-machined tolerances ensure long-term performance
  • Textured exterior grooves make installation and removal easier

Specifications

SpecDetail
Caliber Options.22, .25
Thread Pitch1/2 x 20 UNF
Dimensions1.22" x 7"
Weight (1/2x20 Bolt Cap)4.7 oz
Weight (1/2x20 Cone Cap)   5.0 oz
Weight (M20x1 Bolt Cap)4.6 oz
End Cap Options1/2x20 Bolt, FX (M20x1) Bolt, 1/2x20 Cone
ConstructionCNC-machined, sandblasted and anodized

What's Included

  • (1) DonnyFL KOI Moderator — specify caliber at checkout: .22 or .25

Important disclaimers:

  • All sales are final (questions: 385-685-5951)
  • For airgun use only — use outside its intended purpose is a violation of federal law; buyer is responsible for complying with all applicable state, county, and city laws

Specifications

Standard Specification From Factory

Manufacturer DonnyFL
Caliber .25/.30
Shopping cart

DonnyFL KOI Moderator 1/2x20 UNF

Precise. Rugged. Serviceable.

Overview
The DonnyFL KOI Moderator offers reliable, effective sound suppression in a mono-core design built for durability and easy maintenance. Precision CNC'd by a professional machinist and finished with sandblasted anodizing, the KOI is built to hold up to demanding, repeated use.

Key Features

  • Available in .22 and .25 caliber
  • Mono-core design
  • Precision CNC'd by a professional machinist
  • Sandblasted and anodized for durability
  • Swappable rear end caps: 1/2x20 Bolt, FX (M20x1) Bolt, or 1/2x20 Cone
  • Comes pre-wrapped in felt
  • Machined exterior grooves for easy handling

Performance Advantages

  • Mono-core design supports consistent, reliable sound moderation
  • Swappable end caps add flexibility across different setups and thread standards
  • Durable anodized finish and CNC-machined tolerances ensure long-term performance
  • Textured exterior grooves make installation and removal easier

Specifications

SpecDetail
Caliber Options.22, .25
Thread Pitch1/2 x 20 UNF
Dimensions1.22" x 7"
Weight (1/2x20 Bolt Cap)4.7 oz
Weight (1/2x20 Cone Cap)   5.0 oz
Weight (M20x1 Bolt Cap)4.6 oz
End Cap Options1/2x20 Bolt, FX (M20x1) Bolt, 1/2x20 Cone
ConstructionCNC-machined, sandblasted and anodized

What's Included

  • (1) DonnyFL KOI Moderator — specify caliber at checkout: .22 or .25

Important disclaimers:

  • All sales are final (questions: 385-685-5951)
  • For airgun use only — use outside its intended purpose is a violation of federal law; buyer is responsible for complying with all applicable state, county, and city laws

Specifications

Standard Specification From Factory

Manufacturer DonnyFL
Caliber .25/.30
Shopping cart

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