I probably will get the m15a4 carbine then since the argument of the barrel wobble is now obsolete. However i read that some people had their pistons stripping. is this a general CA problem? what can be done to prevent this and is it a big hassle? Basically the only upgrades i want to do to my gun are to make it more durable not to increase fps since otherwise i'll skip my club's limit.
thanks
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