WTS Colt 9mm Carbine Upper on Franklin Binary M4 Lower

[MFM]

Colt 9mm Complete upper on Franklin Binary M4 style Lower Receiver. Excellent Condition only 500rds. fired since brand new. Runs perfect. HK 3 lug adapter with QD flash hider so you can run a supressor easily. Colt 20rd. and 32rd bolt hold open mags included. The 9mm adapter block can be easily removed so you can throw your 5.56 (or any other) upper on the Binary Lower as well. Comes with heavy 9mm buffer and Std. M4 buffer. Also has Tri-rail system to mount your accessories and removable front pistol grip. $950 cash.