223 Remington Upper Receivers

NBS Slick Side Billet Receiver & M-LOK Handguard Combo - 7"

Aero Precision M4E1 Enhanced Upper Receiver and Quantum M-LOK Handguard Combo - Anodized - 15"

Aero Precision M4E1 Enhanced Upper Receiver and Quantum M-LOK Handguard Combo - Anodized - 12"

Aero Precision M4E1 Enhanced Upper Receiver and Quantum M-LOK Handguard Combo - Anodized - 9"

Aero Precision M4E1 Enhanced Upper Receiver and Quantum M-LOK Handguard Combo - Anodized - 7"

Aero Precision M4E1 Enhanced Upper Receiver and M-LOK Handguard Combo Gen 2 - Anodized Black - 9"

Aero Precision M4E1 Enhanced Upper Receiver and M-LOK Handguard Combo Gen 2 - Anodized Black - 7"

NBS AR-15 Stripped Upper

LMT MRP-L M-LOK AR-15 Upper Receiver - 9.25"

Aero Precision M4E1 Builder Set w/ 9.3" ATLAS S-ONE M-LOK Handguard - Multi Terrain Camo

Aero Precision M4E1 Upper Receiver and 12" M-LOK Gen 2 Handguard Combo - FDE Cerakote

Aero Precision M4E1 Upper Receiver and 9" M-LOK Gen 2 Handguard Combo - FDE Cerakote

Foxtrot Mike 2 POSITION AR-15 ADJUSTABLE CARRIER (PWS)

War Dog Industries Skeletonized Upper Receiver - Black

Strike Industries AR Overmolded UDC - FDE

Stag Arms Stag 15 Tactical 16 in Upper (Left-Handed Ejection)

Stag Arms AR-15 16" Tactical Midlength Left-Handed Upper Assembly - Black

Patriot Ordnance Factory : POF Upper Receivers : Upper Receiver .223 : 00615

Patriot Ordnance Factory : POF Upper Receivers : Upper Receiver .223 : 00612

Patriot Ordnance Factory : POF Upper Receivers : Upper Receiver .223 : 00609

PSA 16" Classic M4 Freedom Upper with BCG & Charging Handle, OD Green

PSA 16" Classic M4 Freedom Upper with BCG and Charging Handle

PSA "Sabre" Forged 20".223 Wylde SS Nitride 18" Sabre Lock Up Rail and Sabre Compensator

PSA 16" Mid Length 1/7 Nitride 15" Lightweight M-lok Upper With BCG & CH - 5165449680