KOBK81 Posted March 2, 2020 Share Posted March 2, 2020 Anyone with a Kwa magpul moe pts erg? Can the fps be adjusted by the recoil spring or does it need the internal spring changing? I've seen other erg guns have adjustable fps inside the stock. Link to comment Share on other sites More sharing options...
matas17 Posted March 2, 2020 Share Posted March 2, 2020 depends which gen you are looking at, KWA RM4 ERG has internal spring that can be removed via buffer tube. I don't know about other models so cant comment on that sorry. Link to comment Share on other sites More sharing options...
Archer Posted March 3, 2020 Share Posted March 3, 2020 Hiya, The ERG is fixed, its only the non-recoil KWA's that can be adjusted using an allen key down the stock tube. Link to comment Share on other sites More sharing options...
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