5.56x45mm NATO Upper Receivers

ABC RIFLE COMPANY AR-15 Micro Pistol Build 5.56x45mm NATO 5in Barrel 4in M-LOK Handguard Upper Receiver Flat Dark Earth

ABC RIFLE COMPANY AR-15 Micro Pistol Build 5.56x45mm NATO 5in Barrel 4in M-LOK Handguard Upper Receiver Red

ABC RIFLE COMPANY AR-15 Micro Pistol Build 5.56x45mm NATO 5in Barrel 4in M-LOK Handguard Upper Receiver Sniper Grey

ABC RIFLE COMPANY AR-15 .223 5.56 Complete Build 16in Barrel 15in Lightweight Hybrid M-LOK Handguard Upper Receiver 1-10 Twist 1/2x28 A2 Style Muzzle

ABC RIFLE COMPANY AR-15 .223 5.56 Complete Build 16in Barrel 15in Lightweight Hybrid M-LOK Handguard Upper Receiver 1-10 Twist 1/2x28 A2 Style Muzzle

ABC RIFLE COMPANY AR-15 .223 5.56 Complete Build 16in Barrel 15in Lightweight Hybrid M-LOK Handguard Upper Receiver 1-10 Twist 1/2x28 A2 Style Muzzle

ABC RIFLE COMPANY AR-15 .223 5.56 Complete Build 16in Barrel 15in Lightweight Hybrid M-LOK Handguard Upper Receiver 1-10 Twist 1/2x28 A2 Style Muzzle

ABC RIFLE COMPANY AR-15 .223 5.56 Complete Build 16in Barrel 15in Lightweight Hybrid M-LOK Handguard Upper Receiver 1-10 Twist 1/2x28 A2 Style Muzzle

ABC RIFLE COMPANY AR-15 .223 5.56 Complete Build 16in Barrel 15in Lightweight Hybrid M-LOK Handguard Upper Receiver 1-10 Twist 1/2x28 A2 Style Muzzle

ABC RIFLE COMPANY AR-15 .223 5.56 Complete Build 16in Barrel 15in Lightweight Hybrid M-LOK Handguard Upper Receiver 1-10 Twist 1/2x28 A2 Style Muzzle

ABC RIFLE COMPANY AR-15 5.56x45mm NATO 16in Barrel 12in Quad Rail Upper Receiver 1-8 Twist 1/2x28 A2 Style Muzzle Brake Nitride Cerakote Sniper Grey

VKTR Industries VK-1 AR-15 13.7 P&W 5.56mm Complete Upper w/ VKTR 3-Prong Flash Hider, FDE

VKTR Industries VK-1 5.56x45mm NATO 11.5 inch Upper Receiver Heavy Carbine Length 1-7 Twist FDE

VKTR Industries VK-1 5.56x45mm NATO 11.5 inch Upper Receiver Heavy Carbine Length 1-7 Twist Armor Black

VKTR Industries VK-1 5.56x45mm NATO 13.7 inch Upper Receiver Heavy Carbine Length 1-7 Twist No Muzzle Device Armor Black

VKTR Industries VK-1 5.56x45mm NATO 13.7 inch Upper Receiver Heavy Carbine Length 1-7 Twist No Muzzle Device Sniper Grey

VKTR Industries VK-1 5.56x45mm NATO 13.7 inch Upper Receiver Heavy Carbine Length 1-7 Twist No Muzzle Device FDE

VKTR V31100916607CA FRGD 556 10.5 TB*CA* ARMBLK

VKTR Industries 13.7in VK-1 Complete AR-15 Upper w/ SOLGW Nox Muzzle Device Cerakote Sniper Grey

VKTR VK1 COMPLETE UPPER 5.56 NATO 13.7IN P&W BBL OR FDE CERAKOTE

VKTR Industries 16in VK-1 Complete AR-15 Upper Cerakote Sniper Grey

VKTR VK-1, 5.56mm, 16 A2, Black, Complete Upper w/ H2 Buffer & Disruptor Forced Reset Trigger

LaRue Tactical Stealth 2.0 Assembled AR-15 Upper Receiver - 13" - FDE

LaRue Tactical Match Grade Complete AR-15 Upper Receiver - 5.56 - 16" - FDE