This is a CMT flat top upper with Busmaster M4 chromed contoured 16" barrel with A2 flashhider on a ARMS free float SIR 45C system with KAC front vertical grip. Complete with Armilite bolt and carrier. Rear sight is an ARMS 40, Complete package Price is $900
without the ARMS 40 = $820
without ARMS SIR 45C and 40 = $520
ACOG is on another for sale add
will sale just the ARMS 45C SIR for $299
Will not sale the ARMS 40 alone.
If interested please contact firstname.lastname@example.org
This upper has low miles less than 400 rounds