Modified R-HOP Arm - Prowin M4 Hop-up Chamber

$14.99
$12.74
Availability: In Stock
SKU:

Thinking of installing a R-hop set-up to your RIF? Instead of modifying your stock ARM by cutting /sanding which may run the risk of an unbalanced force pressing on the R-hop patch - our R-HOP arm is designed to be a drop-in upgrade to mitigate the risk to give a perfect, even forced pressure.

Features

  • Save cost on expensive aftermarket hop-up chambers for R-hop usage
  • No need for modifying the stock arm and adding M-nub (our arm provides both)
  • Easy drop-in with no modifications required.
  • Made from tough fiber polymer injected plastic

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