UTG Pro RBU6Bm Mil-Spec Rifle AR15/M16 Buttstock Kit Polymer/Aluminum Black Leapers Mil-Spec Stock Assembly Comes Complete With Action Spring, Buffer Assembly, Tear-Drop Ring And Castle Nut. It Is constructed Of High-Strength Polymer With a Black Finish, And a Extension Tube Made From Aluminum With Rolled Threads. This Model Is Made In The US. Type: Buttstock Kit Firearm Type: Rifle Firearm Model: AR-15/M-16 Material: Polymer/Aluminum Finish: Black Positions: 6
