AR Parts in 5.56x45mm NATO

BRN-180S® GEN 2 COMPLETE UPPER RECEIVER ASSEMBLY

Ar-15 Lower Parts Kit 5.56 - Ar-15 Lower Parts Kit 5.56 No Fire Control Grp/Pistol Grip

Ar-15 Upper Receiver Completion Kits - Brn M16a2 Upper Receiver Completion Kit

Brn-15 11.5'''' Upper Receiver Assembly 5.56mm - Brn-15 5.56 11.5'''' Bbl .750'''' Gb Upper W/Charging Handle & Bcg

Brn-15 13.7'''' Upper Receiver Assembly 5.56mm - Brn-15 5.56 13.7'''' Bbl .750'''' Gb Upper W/Charging Handle & Bcg

Ar-15 16'''' Upper Receiver Assemblies 5.56mm - Brn-15 5.56mm 16'''' Bbl .625'''' Gb Upper W/Charging Handle & Bcg

Ar-15 16'''' Upper Receiver Assemblies 5.56mm - Brn-15 5.56mm 16'''' Bbl .750'''' Gb Upper W/Charging Handle & Bcg

GVAC UPPER GROUP 5.56MM 14.5"

Black Rain Ordnance 12in Mlok Handguard 5.56 Black

Black Rain Ordnance n Slim Handguard 5.56 Black

Black Rain Ordnance 15in Slim Handguard 5.56 Black

Black Rain Ordnance 12in Slim Handguard 5.56 Black

Black Rain Ordnance Upper Receiver 5.56 Black

Black Rain Ordnance 15in Mlok Handguard 5.56 Black

MSR15 Competition Upper Receiver .223REM/5.56mm 18"

Aero Precision AR-15 M4E1-E Barreled Upper Receiver 5.56x45mm NATO 12.5" Barrel 10.3" ATLAS R-ONE Handguard Flat Dark Earth

Aero Precision AR-15 M4E1-E Barreled Upper Receiver 5.56x45mm NATO 12.5" Barrel 10.3" ATLAS R-ONE Handguard Black

Aero Precision AR-15 M4E1-E Barreled Upper Receiver 5.56x45mm NATO 16" HBAR Barrel 15" EM Gen2 Enhanced Handguard Flat Dark Earth

Aero Precision AR-15 M4E1-E Barreled Upper Receiver 5.56x45mm NATO 10.5" Barrel 9.3" ATLAS R-ONE Handguard Flat Dark Earth

Unknown Unknown 5.56mm Police Trade-In 10 inch Complete Upper

Unknown BMP 5.56mm Heavy Barrel Police Trade-in Upper Receiver

Unknown 5.56mm Upper Receiver with 10.5 Inch Barrel (No Charging Handle or BCG)

SB Tactical HBPDW 5.56mm NATO/300 AAC Blackout Black Pistol Brace

Sig Sauer M400 Tread Enhanced MLOK Handguard - Black, 15in