Solid but flawed. - DoubleStar ACE M4 Socom Stock

Bought this stock for a MK12 mod H clone. The fit and finish of this stock is superb, and the machine work is flawless. It seems very robust, and balances the rifle quite nicely. However, it has one major flaw, the foam rubber which coats the buffer tube makes contact with the charging handle. When cycling the charging handle, the foam rubber catches and clings to the charging handle, making it difficult to cycle the weapon. If you absolutely have to have this stock for a mod H clone, then nothing else will do, but be aware this design has an inherent flaw that affects the function of the weapon. I’m going to ask Optics Planet for a refund on this one.