Foxtrot Mike Products MIKE-15 .223 Wylde Gen 2 AR-15 Side Charging Complete Upper Receiver - 13.9"

Battle Arms Workhorse 16" Upper .223 Wylde 1:8 Free Float M-LOK Rail Carbine-Length, Black

Battle Arms Workhorse 16" Upper .223 Wylde 1:8 Free Float M-LOK Rail Carbine-Length, Black

Midwest AR-15 Upper, 16" Lightweight Barrel, 223 Wylde, No BCG or Charging Handle - MIN16CRM15U

Foxtrot Mike Products FM9 Rear Charging Rifle 9mm 16 Barrel

FOXTROT MIKE PRODUCTS FM15

Aero Precision M4E1 Complete Upper Receiver .223 Wylde Mid Barrel EM-15 HG No BCG/Charging Handle Gen 2 Anodized Black 16in APAR600251M9

FOXTROT MIKE 102 223 WYLDE G2 RFL 16" INTRMDITE GAS, ZHUKOV STOCK, MOE GRIP, 1-30RD