Quote:
Originally Posted by Rusty Lugnuts
I've heard good things abou the Bolt m4
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The BOLT M4, IMHO is absolute garbage as far as the blow back unit is involved. Externally it's actually quite a nice rifle, worth the month just for that actually. The problem is that BOLT went with a mechanical blowback design involving an arm reaching through a cutout in the mechbox which is pushed back by the piston. Over time (not that long actually) the arm wears away at the piston and eventually the piston snaps in two.
@OP: If you are looking for blowback, go GBBR; stay away from electric blowback designs period they just are not worth it. Even G&G (which uses an excellent pneumatic blowback design) are getting a "do not buy" recommendation from me these days due to the inferior alloys they are using in their mech boxs, horrible QC at the factory etc.