9mm AR using Colt SMG magazines. Comes with both a Maxim Defense roller delayed buffer, and a KVP 10 oz deadblow buffer. A few grip options too as pictured, let me know which one you'd like.


 


Build list: 


Spike's Tactical lower using Colt SMG magazines (one Duramag included)


 Rock River Arms EOP upper


 PWS enhanced end plate/castle nut


Maxim Defense roller-delayed buffer system (not installed) and a Kaw Valley Precision 10 oz deadblow buffer (installed)


KAK 9mm bolt


SB Tactical SBA5 brace


Sig Romeo MSR red dot


LPA rear sight (windage and elevation adjustable)


FAB Defense flip-up front sight (elevation adjustable)


Crimson Trace weapon light


Sons of Liberty Gunworks Liberty Fighting Trigger


Foxtrot Mike 7" 9mm barrel 


BCM buffer tube 


Fortis Clutch charging handle


Magpul forward QD sling mount


Strike Industries polymer dust cover


Ambi mil-spec style safety