The Build Kit Includes:
(1) 10.5" 5.56 barrel, 1:5 twist, Micro Gas system,1/2-28 muzzle thread, nitride finish
5.56 upper receiver with M4 feedramps
(1) 5.56 Bolt Carrier Group
Low profile adjustable gas block
Micro gas tube
(1)  MLOK hand guard
Complete lower parts kit
QD receiver end plate
Castle nut
Charging handle
Dust cover
Forward assist
A2 flash hider
 buffer system