Thunder0ne Posted December 27, 2009 Share Posted December 27, 2009 Hi guys i just got me m4 last week shoots good..well i took it apart last night and its making some noise ..the 2 pistons on the front move front and back freely the black ones that go into the silver cylinders..are the black pistons supposed to move like that ..i didnt hear them move like that when i got my m4 or even after i shot it the first time..any info would be great .. Quote Link to comment Share on other sites More sharing options...
StrangerDanger Posted December 27, 2009 Share Posted December 27, 2009 Normal. They free float. Even when the bolt carrier is forward, there is a small amount of movement. Quote Link to comment Share on other sites More sharing options...
Thunder0ne Posted December 27, 2009 Author Share Posted December 27, 2009 thanks SD ..your the M4 dictionary Quote Link to comment Share on other sites More sharing options...
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