heckler&kochp2000 Posted November 6, 2008 Posted November 6, 2008 (edited) GUNBROKER.COM http://www.gunbroker.com/Auction/ViewItem.aspx?Item=317526615 Edited November 19, 2012 by heckler&kochp2000 Quote
Guest GunCrazyD Posted November 6, 2008 Posted November 6, 2008 only the standard M4 - guns whose model #'s are 11707 or 11717 can take it..the 1014 models will not take take collapsible stock... Quote
Duggan Posted November 6, 2008 Posted November 6, 2008 It will fit on any M4. It will only collapse on M11707's and M11717's (the newest models, the models made the past 3 or so years). The difference is that the recoil tube is milled (flat) on one side and has notches for the stock to collapse to. Quite a few people on this board have either changed out their recoil tube with a new one, or sent their recoil tube away to have it milled and notched. A search on this topic will find you all the info you want to know. Quote
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