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View larger Upgrade Steel Spring Guide with Bearing by Action Army in silver finish.
For spring bolt-action sniper rifles Tokyo Marui VSR-10 / ONE and clones (BAR-10, Well MB03, etc.).
Internal diameter of 7 mm.
Durable 303 stainless steel construction suitable even for strong springs.
Integrated bearing for smoother compression and easier cocking.

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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.
B01-009
POWER SPRING for Bolt-Action Sniper Rifles by Action Army – spring strength M150. Inner diameter 7 mm. Compatible with VSR-10 / ONE, Well MB03, BAR-10 and similar rifles. Made from spring steel wire.
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.
B01-014
POWER SPRING for Bolt-Action Sniper Rifles by Action Army – spring strength M130. Inner diameter 7 mm. Compatible with VSR-10 / ONE, Well MB03, BAR-10 and similar rifles. Made from spring steel wire.
This CNC-machined spring guide for manual sniper rifles is designed to deliver maximum durability and efficient power transfer, even when using high-tension springs. The solid stainless steel body and built-in bearing reduce friction during spring compression, ensuring smoother and faster cocking. Thanks to its high-quality machining, this guide is ideal for demanding upgrade builds of high-performance sniper rifles.
| Color | Silver |
| Spring guide | Metal |