Hey folks, I've heard of a few people swapping in a 1.6 Swift spring into the DZMK4 for a quick boost. If I do that, do I have to do any barrel mods? Or is the spring swap good enough to bump the FPS a bit?
Hey folks, I've heard of a few people swapping in a 1.6 Swift spring into the DZMK4 for a quick boost. If I do that, do I have to do any barrel mods? Or is the spring swap good enough to bump the FPS a bit?
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