AIM Sports Inc 6 POS Collapsible STK/AR10 Black Small Black Small. The quick-adjust lever makes running through the adjustment positions fast and easy. The upgraded ambidextrous QD Slling Socket Cups make adding a sling convenient and versatille. Works with any Mil-Spec carbine buffer tube. Specifications for AIM Sports Inc 6 POS Collapsible STK/AR10: Manufacturer: AIM Sports Inc Color: Black Gun Model: AR-10 Features of AIM Sports Inc 6 POS Collapsible STK/AR10 6-position collapsible stock Package Contents: AIM Sports Inc 6 POS Collapsible STK/AR10 What firearm models does the manufacturer say AIM Sports Inc 6 POS Collapsible STK/AR10 is compatible with? The manufacturer says that AIM Sports Inc 6 POS Collapsible STK/AR10 is compatible with AR-10AIM Sports Inc AR10STKC-C: 6 POS Collapsible STK/AR10 Black Small AR10STKC-C Black Small