JVAN technical journal

Airsoft Gearbox Guides & Technical Articles

Practical guidance for comparing gear ratios, checking V2 and V3 compatibility, selecting supporting bushings, and planning dependable airsoft gearbox builds.

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FKM vs Silicone Piston Head O-Rings

On Jul 27, 2026 By JVAN PRECISION 0 comments

FKM or silicone? The right piston head O-ring depends on your climate and play style. We break down heat resistance, friction, and durability so you can pick the perfect seal for your AEG.