Plug and play m4-style stock - Adaptive Tactical EX Performance Adjustable M4-Style Stock f/AR15/AR10 Carbines

Good and tight fitment for mil-spec buffer tube. The plastic mold is nicely done though may need a more refined way of cutting excess material from manufacturing as you can see a visually appalling scar of white between the engaging parts.
There is also an insert for swivel adapters to attach your slip. It's design is a bit different cosmetically from other stock manufacturers that drew my interest but functionality is the same.