5.56x45mm NATO Upper Receivers

Sr-15 E3 Mod 2 Upper Receivers M-Lok - Ar-15 Upper Receiver Lpr Mod 2 18'''' Urx

Mk16 Super Duty Complete Upper Receivers 5.56mm - Mk16 11.5'''' Super Duty Upper Chf Bbl, Ach, Nano Fh/Bcg Odg

Ar-15 Super Duty Stripped Upper Receivers 5.56mm - Ar-15 16'''' Top Tier Stripped Super Duty Upper Od Green

Ar-15 Super Duty Stripped Upper Receivers 5.56mm - Ar-15 14.5'''' Top Tier Stripped Super Duty Upper Od Green

Ar-15 Super Duty Stripped Upper Receivers 5.56mm - Ar-15 11.5'''' Top Tier Stripped Super Duty Upper Od Green

Ar-15 Super Duty Stripped Upper Receivers 5.56mm - Ar-15 14.5 Super Duty Stripped Upper Receiver Ddc

Radian Weapons Model 1 Upper Receiver and Hand Guard Set 10 in M-LOK Radian Brown

Radian Weapons Model 1 Upper Receiver and Hand Guard Set 17 in M-LOK Radian OD

Radian Weapons Model 1 Upper Receiver and Hand Guard Set 8.5 in M-LOK FDE

Radical Arms Upper .223/5.56Nato 16 Barrel Black with a 15Rail

RADICAL FIREARMS Complete Upper Assembly 5.56 10.5" M4 10" RPR

RADICAL FIREARMS Complete Upper Assembly 5.56 7.5" M4 Contour7" RPR

Ascent 5.56x45 Nato Complete Upper Receiver For Ar-15 - Ascent 5.56x45 Nato 10.5'''' Complete Upper Receiver Black

Ascent 5.56x45 Nato Complete Upper Receiver For Ar-15 - Ascent 5.56x45 Nato 16'''' Complete Upper Receiver Black

CMMG 22BA60F Bravo Conversion Kit 22 LR Stainless Steel Fits AR-15 223 5.56

Aero Precision M4E1 Threaded 12.5" 5.56 Carbine Length Complete Upper Receiver w/ ATLAS S-ONE Handguard - FDE Cerakote

Aero Precision M4E1 Threaded Barreled Upper Receiver 5.56 Carbine - ATLAS R-ONE - 12.5"

M4e1 5.56 Assembled Upper Receiver W/M-Lok Atlas S-One Handguard - M4e1 5.56 Assm Uppr 11.5'''' Carbine 9'''' Atlas S-One Hg Fde

Ar-15 Upper Receiver Assembled No Auto Sear Cut - 5.56mm Assembled Upper Rcvr No Auto Sear Cut For Ar-15 Black

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

Aero Precision M4E1 Upper Receiver and 7" M-LOK Gen 2 Handguard Combo - FDE Cerakote

M4E1 Complete Upper, 10.5" 5.56 Barrel w/ FSB EQ-7 Gen 2 Handguard - Anodized Black

Aero Precision M4E1 5.56mm 16in M-LOK Upper Receiver M4 Carbine Length Barrel 1-7 Twist 1/2x28 15in M-LOK Handguard Gen 2 FDE Cerakote

RADICAL UPPER 556NATO 10.5" BL