Experience superior performance with the Specna Arms x JVAN 13_1 Short Stroke precision gear set with improved timing, brought to you by JIN, a brand renowned for reliability and quality. This short stroke precision sprocket set for high-torque brushless airsoft builds enhances timing and consistency, delivering smoother operation and long-term durability at a fair price. 🔧 For related airsoft parts, learn more at airsoftmania.eu/collections/airsoft-parts.

• Improved timing — The pushrod tension has been moved to the height of the second tooth, avoiding the nozzle PME phenomenon with high-force and brushless motors. ⚙️
• Excellent quality control — Rigorous quality checks ensure consistent performance across every sprocket set.
• Material: 40Cr steel — Manufactured from high-grade 40Cr steel for strength and longevity.
• Short Stroke version — Optimized for faster cycling and reduced wear in high-torque setups.
• CNC machined drive sprocket — Precision-machined for accurate meshing and reliability; drive sprocket hardness HRC42-47.
• Hardness specifications — Centre and piston pinion HRC42-50; gear axle HRC55-60 for peak durability.

Technical specifications

• Version — Short Stroke (13_1 JVAN)
• Material — 40Cr steel
• Drive sprocket hardness — HRC42-47 (CNC machining)
• Centre and piston pinion hardness — HRC42-50
• Gear axle hardness — HRC55-60
• Manufacturing — Precision CNC production