Foxtrot Mike 9mm, Rear Charging 5\" Upper with Micro Blast Diffuser - FM9U-R54-B

Fortis Muzzle Brake 9mm 1/2x28, Black - 9MM-MB-BLK-28

CMMG Banshee 5.7x28mm Upper with 5" Barrel, Black - 57BBCF0AB

CMMG Dissent 6.50" Upper 5.7x28mm with 1:9 Twist Rate and M-LOK Rail - Pistol-Length with Charging Handle - Armor Black - 57BA8AEAB

Foxtrot Mike Products FM9 Rear Charging Rifle 9mm 16 Barrel

CMMG Resolute 16.10" Upper 5.7x28mm with 1:9 Twist Rate and M-LOK Rail - Carbine-Length with BCG and CH - Armor Black - 57B40E4AB

FOXTROT MIKE PRODUCTS FM15

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