9mm/40cal S&W M&P Competition Collection from Grasshopper Gunworks LLC near East Freetown, Massachusetts, USA

4- Frames, 5- 9mm slides, 1- .40cal slide, 8- .40 cal magazines, 1- KKM .40 cal extra barrel, 14- factory 9mm magazines, 2- ETS 30 round magazines, 1- extra 9mm barrel, Stingray 90 degree Cmore mount, 3-plus 10 TF base pads, 11-plus 5 TF base pads, dozens of extra mag and recoil springs. 

Every slide and barrel combo works on every frame.  Free States Only. 

Contact for more details.