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Included with the company's CNC gearbox M4,416 TM NGRS (8mm)
This is a spring guide sold separately.
Genuine next-generation electric gun Φ14mm standard spring with narrow inner diameter
Piston 14.5 steel teeth TM Next Gen AR/M4 fully compatible spring guide
Next-generation electric gun genuine springs and NGRS Spring SiCr with progressive winding
Spring is compatible.
*The Φ15mm standard spring used in regular electric guns is
Do not use this product as it may fall off the guide and cause the piston to crash.
![[RETRO ARMS] Spring guide NGRS](http://rock-et.jp/cdn/shop/files/RETRO-6713_1024x1024.jpg?v=1750384804)
