Retro Arms M249 / M60 Box Magazine Bowden Spring Valken The Hopup Chamber M4A unit
$19.99
Description
The Hopup Chamber M4A unit is designed to accept 21
The LA Capa Customs short stroke kit: featuring 4 softer and thicker rubbers
Spring Loaded Folding Action
various optics
Retro Arms M249 / M60 Box Magazine Bowden Spring Valken The Hopup Chamber M4A unitBowden spring is used for leading BB's in high capacity magazines, e. g. machineguns.
Shipping Notes
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- Standard Shipping : 3-10 business days
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