Delivery before X-MAS only for orders received by December 17, 2025.
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View larger B01-007
VSR-10 Complete Teflon-Coated Cylinder Upgrade Kit by Action Army. Ideal upgrade for sniper rifles like Tokyo Marui VSR-10 / ONE, Well MB03, Novritsch SSG10, and JG BAR-10. Black steel cylinder with teflon coating for smooth piston movement and minimal friction. Durable stainless steel cylinder head and end cap designed for high-power springs.
B01-013
CNC Aluminum Hop-Up Chamber for VSR-10 by Action Army in red. Compatible with Tokyo Marui VSR-10 / ONE, Well MB03, JG BAR-10 and CYMA CM.701. Precision pressure system for accurate long-range shots. Handles heavy sniper BBs (0.36–0.49 g). Compatible with VSR / GBB type inner barrels and buckings. Durable CNC aluminum construction.
The spring directly affects the total power output of the rifle in conjunction with air seal components. Low-quality springs may initially offer high power, but they often lose tension quickly, shorten, or even break under stress—especially if stored under tension. The POWER SPRING by Action Army is designed to deliver maximum power consistency in your bolt-action sniper rifle. Made from high-quality spring steel, it offers excellent durability and resistance to fatigue. We recommend combining it with other upgrade components by Action Army.
Consider your physical strength when selecting a spring. Stronger springs like M170+ can be extremely hard to pull back.
| Color | Black |
| Muzzle velocity (m/s) | 170 (m/s) |