View cart “RM4 ERG Trigger Assembly and Wiring Harness” has been added to your cart.
The RM4 CQB main spring fits the KWA RM4 ERG Series and is rated to shoot at 330-350 FPS. With the new RM4A1 quick-change spring system, a spare spring to quickly switch to indoor play is a must have.
| Weight | .03 lbs |
|---|---|
| Dimensions | 6 × .5 × .5 in |
In stock
$35.00
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