223 Remington-5.56 Nato

Wilson Combat TRUPPER 5.56x45mm NATO Stripped Firearm Upper 874218004514

Wilson Combat TRUPPER Forged Upper Receiver 5.56x45mm NATO 7075-T6 Aluminum Black Anodized Receiver for AR-15Wilson's Forged Upper Receiver is a M4 Mil-Spec, flat-top upper receiver precision CNC machined from 7075-T6 aluminum forgings for maximum...

Yankee Hill 110 223 Remington/5.56 NATO Stripped Firearm Upper 816701011326

Yankee Hill 110 Flat Top Upper Receiver 5.56x45mm NATO 7075-T6 Aluminum Black Anodized Receiver for AR-15The YHM Flat Top Upper Receiver is made from 7075-T6 aluminum (Forged) and has a hardcoat anodized matte black finish. It features M4 Style feed...

Aero Precision APAR700201C 5.56x45mm NATO Stripped Firearm Upper 815421023756

Aero Precision APAR700201C M4E1 Threaded Receiver 5.56x45mm NATO 7075-T6 Aluminum Black Anodized Receiver for AR-15The M4E1 Threaded Upper Receiver features an angular machined design that helps it stand apart from standard mil-spec upper receivers. It...

Yankee Hill 110BILLET 223 Remington/5.56 NATO Stripped Firearm Upper 816701017625

Yankee Hill 110BILLET Billet Upper Receiver 5.56x45mm NATO 7075-T6 Aluminum Black Anodized Receiver for AR-15The stylization of the YHM-110-BILLET was directly related to the stylization of the Billet lower which YHM finished first. It is crafted from...

Aero Precision APAR600201AC 5.56x45mm NATO Semi-Complete Firearm Upper 815421022339

Aero Precision APAR600201AC M4E1 Enhanced Receiver 5.56x45mm NATO 7075-T6 Aluminum Black Anodized Receiver for AR-15The M4E1 upper receiver is a one-piece design combining the handguard mounting platform with the upper itself. It is machined from 7075-T6...

Wilson Combat TRUPPERBIL 5.56x45mm NATO Stripped Firearm Upper 874218008901

Wilson Combat TRUPPERBIL Billet Upper 5.56x45mm NATO 7075-T6 Aluminum Black Anodized Receiver for AR-15The Billet-AR upper receiver set is 100% machined in the USA and was engineered from the ground up to address structural design weaknesses in standard...

Spikes STU5435MLS 223 Rem5.56 NATO Complete Firearm Upper 16" 815648023317

Spikes STU5435MLS Complete Upper 5.56x45mm NATO 16" Black Phosphate/Midlength Barrel, 7075-T6 Aluminum Black Receiver, 12" SAR3 Free-Floating Handguard for AR-15The Spike's Tactical ST-15 Enhanced upper line-up is designed as a fully Mil-spec compliant...

Spikes STU5025R9S 223 Rem5.56 NATO Complete Firearm Upper 16" 815648021085

Spikes STU5025R9S Complete Upper 5.56x45mm NATO 16" Black Phosphate Barrel, 7075-T6 Aluminum Black Receiver, 9" BAR2 Free-Float Handguard for M4 CarbineThe Spike's Tactical ST-15 LE upper line-up is designed as a fully Mil-spec compliant upper series for...

Spikes STU5435R2S 223 Rem5.56 NATO Complete Firearm Upper 16" 815648023331

Spikes STU5435R2S Complete Upper 5.56x45mm NATO 16" Black Phosphate/Midlength Barrel, 7075-T6 Aluminum Black Receiver, 12" SAR3 Free-Floating Handguard for AR-15The Spike's Tactical ST-15 Enhanced upper line-up is designed as a fully Mil-spec compliant...

Spikes STU5035S2S 223 Rem5.56 NATO Complete Firearm Upper 16" 815648021320

Spikes STU5035S2S Complete Upper 5.56x45mm NATO 16" Black Phosphate/Midlength Barrel, 7075-T6 Aluminum Black Receiver, 12" SAR3 Free-Floating Handguard for AR-15The Spike's Tactical ST-15 LE upper line-up is designed as a fully Mil-spec compliant upper...

Spikes STU5025M4S 223 Rem5.56 NATO Complete Firearm Upper 16" 815648021030

Spikes STU5025M4S Complete Upper 5.56x45mm NATO 16" Black Phosphate Barrel, 7075-T6 Aluminum Black Receiver, M4 Double Head Shield Handguard for M4 CarbineThe Spike's Tactical ST-15 LE upper line-up is designed as a fully Mil-spec compliant upper series...