Kgm Suppressors ISURG-556-16-BLK ISURG 5.56 NATO 16.70, Upper Receiver

Geissele Automatics URG-I Near Clone 5.56mm 14.5" CHF P&W Complete Upper, DDC

Gemtech GVAC 16. 10" Upper Receiver 5.56x45mm 1:8, Black - 13833

Geissele Automatics Super Duty 5.56mm 16" CHF MK16 Stripped Upper, Black

CMMG Upper Receiver Assembly, Armor Black

CMMG Resolute 16.10" Upper 8.6 Blackout 1:3 M-LOK Rail Carbine-Length, Armor Black

Luth-AR M16 .223/5.56mm A1 Upper Receiver Part Hard Coat Anodized Black

Brn-15 Upper Receivers 5.56mm Nato - Brn-15 5.56mm 16'''' Bbl .750'''' Gas Block Upper Receiver