DonnyFL KOI Moderator




 1.22 x 7 inches  

Available in .25 and .22 caliber.


Mono-core design


Precision CNC’ed by professional machinist


Sand blasted and anodized for maximum durability


Swappable rear end caps for 1/2 x 20 Bolt, FX (M20x1) Bolt or 1/2 x 20 Cone


Comes pre-wrapped in felt


Machined grooves on the outside for easy handling




1. With 1/2 x 20 Bolt rear end cap: 4.7 oz


2. With 1/2 x 20 Cone rear end cap: 5.0 oz


3. With M20x1 Bolt rear end cap: 4.6 oz


*DISCLAIMER: These DonnyFL products are INTENDED for the use on airguns only.  It is a violation of Federal law to use this product in a manner inconsistent for which it was intended for. It is your Responsibility to know the laws in your state, county and city and to fully comply with them. 

Weight 0.1 lbs
Dimensions 1 × 6 × 1 in
Product UPC/EAN



.177/.22, .25/.30

Thread Size

1/2×20 UNF, M20x1

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