F5 MFG Modular Stock System with B&T 9mm Adapter Black

F5 MFG Modular Stock System with B&T 9mm Adapter Black. Taking the modular concept one step further the MPS allows the shooter to not only customize the stock to their needs but also makes for a great mid-length or short-length buffer tubed carbine. A solid locking hinge is built in to both the receiver extensions and the buffer tubes on both the full-size and compact receiver extensions. This allows for the receiver extensions to be pushed in or out without the stock being damaged. The MPS allo