With a rugged front cap design, signature DonnyFL body grooves, and bolt endcap, the KOI is a fantastic addition to any shrouded or un-shrouded air rifle. It has the smallest outer diameter compared to other DonnyFL models, but don't let the size fool you—it's just as impressive!
.25/.30 Cal
1/2”x20” bolt pattern
With a rugged front cap design, signature DonnyFL body grooves, and bolt endcap, the KOI is a fantastic addition to any shrouded or un-shrouded air rifle. It has the smallest outer diameter compared to other DonnyFL models, but don't let the size fool you—it's just as impressive!
.25/.30 Cal
1/2”x20” bolt pattern
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