building a CQB Monster ARP 9

My project for tomorrow.

Rebuild my newly acquired second hand G&G ARP 9 from hopup.
Parts list for the project
SHS full rack piston.
SHS Silent piston head
SHS Silent cylinder head
Maxx adjustable speed trigger
T238 V2 Bluetooth mosfet
T238 38k brushless motor
Delta stack
EMG Buffer tube
Crown buffer tube locking nut
QD slings plate