Upgrades for an D-boys M4 s-system
I'm planning on buying this gun very soon and will eventually upgrade it. I will hopefully upgrade it to about 350-400 FPS with .20's but a small problem. I don't know anything about internal upgrades beyond a tightbore and a stronger spring. So what upgrades would I need to achieve that FPS? I'm asking this because i realize you need to upgrade more than just the spring because everything else can't keep up with it.
Thanks in advance.
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Is there a Cansoft Banhammer with a clear plastic shaft? And will it be compatible with full metal/wood Banhammers?
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