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Bone Yard - Matrix / AIM Sportsline M4 Carbine Airsoft AEG (Store Display, Non-Working Or Refurbished Models)
by Daniel O. Date Added: March 4, 2011
Well ive gota say i bought one of these and outa the box i was impressed! I am an expert mod and repairman for lpaeg guns but this is my first "hobby Grade" gun. There was a crack in the pin mount on the upper reciever but the main problem for me is that the gearbox on mine is locked up from the start (using a 9.6v battery) :\ Everything is obviously brand new. I stripped the gearbox down to everything minus the tapet, spring, piston, cylinder. When just turning the gears it sounds a little rough and after a few revolutions it locks up. All the internals look great, even the gearbox. If you buy this gun keep in mind that the gearbox could be 1. improperly shimmed. and 2. Mine had no grease whatsoever in the gearbox so you may want to add some.

Rating: 4 of 5 Stars! [4 of 5 Stars!]
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