High Power Model Rocketry

PK-57 4" V2 Fin Set

PK-57 4" V2 Fin Set - Main image
$22.02 $31.46 In stock

The PK-57 4" V2 Fin Set from LOC Precision includes four fins designed for use with 4-inch diameter V2 model rocket kits. This fin set is a replacement or upgrade component for builders working on V2-style high power rockets.

  • Contains 4 fins per set
  • Compatible with 4-inch diameter V2 rocket kits
  • Brand: LOC Precision
  • Product code: FS-PK57-4
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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.2 / 5 · 5 reviews)

Lily K. ★★★★★

The cutouts line up cleanly with the body tube slots, so I didn't have to do much sanding to get a tight fit. The four fins feel sturdy and balanced for the 4-inch diameter build.

Abigail ★★★★★

Fits the 4-inch V2 kit perfectly, and the edges are already sanded smooth enough that I didn't have to do much prep before gluing. Set them against the body tube and they lined up true with no gaps, so the build felt solid right away. Exactly what I needed to finish the rocket.

Olivia ★★★★☆

The fins are nicely cut and match the 4-inch V2 body tube profile without needing much sanding to fit. Took a bit of work to get them perfectly aligned on the rocket, but once glued they feel solid enough for a mid-power flight.