Gmcrigger2007 Posted December 21, 2021 Share Posted December 21, 2021 Other than the Fixed Skeleton stock version of the M4 which has a different recoil tube than the LE version M4 which comes with a collapsible recoil tube,is it one or the other ? Quote Link to comment Share on other sites More sharing options...
Ben elLes Posted December 21, 2021 Share Posted December 21, 2021 All M4s that I know of other than the one single m1014 skeleton stock come with the 3 position recoil tube. Quote Link to comment Share on other sites More sharing options...
Gmcrigger2007 Posted December 22, 2021 Author Share Posted December 22, 2021 6 hours ago, Ben elLes said: All M4s that I know of other than the one single m1014 skeleton stock come with the 3 position recoil tube. Thank you for the reply. Quote Link to comment Share on other sites More sharing options...
StrangerDanger Posted December 22, 2021 Share Posted December 22, 2021 There is also an older 2 position receiver extension. No idea where they originated from. I received some from Numrich arms back around 2012. 1 Quote Link to comment Share on other sites More sharing options...
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