Upper Components:

BCM upper receiver

Geissele 13" MK8 rail 

Geissele Airborne CH

LMT Enhanced BCG

Noveske 13.7 CL barrel w/ low profile GB

Dead Air FH

Dead Air Pyro

KAC BUIS

CompM4s w/ OEM extended spacer

Magpul RSA

Magpul MLOK handstop kit

Lower Components:

KAC non-ambi stripped lower receiver

KAC QD end plate assembly

KAC trigger guard

KAC ambi selector lever

KAC ambi mag release

LMT Rifle RE w/ VLTOR A5H2 system and Sprinco Green Spring

LMT/B5 SOPMOD

Geissele SSA-E

Geissele Maritime bolt catch/release

Magpul MOE+   

In order to get 16" out of a 13.7" barrel with that muzzle device you will need to secure a KAC spacer from ADCO unless of course you've SBR'd the lower.