5.56x45mm NATO Gun Parts

Aero Precision AR-15 Complete Upper Receiver 5.56 Carbine Length 16 inch Barrel w/Pinned FSB Magpul MOE Handguard A2 Flash Hider FDE Cerakote

Aero Precision AR-15 Complete Upper Receiver 5.56 Mid-Length 16 inch Barrel w/Pinned FSB Magpul MOE Handguard A2 Flash Hider Anodized Black

Aero Precision AR-15 Complete Upper Receiver 5.56 Mid-Length 16 inch Barrel w/Pinned FSB Magpul MOE Handguard A2 Flash Hider FDE Cerakote

Aero Precision M4E1-E Complete Upper 14.5in 5.56 M4 Carbine Barrel EM-12 Handguard Gen 2 Anodized Black

AERO PRECISION M4E1-T Complete Upper, 16" 5.56 Mid-Length BRL FDE

Aero Precision Complete Upper Receiver M4E1-T 20in 5.56 Rifle Length Barrel 15in M-LOK ATLAS S-ONE Handguard Anodized Black

Aero Precision Complete Upper Receiver M4E1-T 14.5in 5.56 Mid Barrel 12in M-LOK ATLAS S-ONE Handguard Anodized Black

AERO PRECISION M4E1 Complete Upper 16" 5.56 Mid-Length - Black

Aero Precision M4E1 Enhanced 10.5 5.56 Barrel Complete Upper Receiver

Aero Precision Enhanced Complete Lower 5.56 NATO / .223 Rem with MOE Grip

DPMS DP15 Oracle II Complete Upper 5.56 16 Threaded Barrel

Geissele Automatics Geissele Super Duty 5.56mm 14.5" Heavy Bbl (.750 Journal) Black Stripped Upper Receiver (No Charging Handle, Muzzle Device, or

Geissele Super Duty AR-15 Barreled Upper Receiver 5.56x45mm NATO 16" Heavy Barrel 0.750 Gas Block Stripped Black

DNZ Freedom Reaper 5.56 1-Piece 20 MOA Cantilever Picatinny Scope Mount 1" Rings AR-15 Matte Black

Hexmag AR15 HexID Color ID System 4 Pack Green

Ares Defense Systems SCR Pistol Lower

DPMS M4 Complete Upper 5.56 16 Barrel w/ Quad Rail

FightLite Raptor Belt-Fed AR-15 5.56x45mm NATO 16.25inch Upper Receiver M-LOK Rail 1-7 Twist 1/2x28 Anodized Black

Noveske Gen 3 Receiver Set Flat Dark Earth 5.56 / .223 Rem

Aero Precision RM10.3 M4E1-T Complete Upper w/11.5in 5.56 Barrel FDE

Aero Precision RM10.3 M4E1-T Complete Upper w/11.5in 5.56 Barrel Black

Aero Precision Complete Upper Receiver M4E1-T RM-15 5.56x45mm NATO 16in Government Mid Length 1 in 7 1/2 x 28 15in A2 Flash Hider Anodized OD Green

Aero Precision Complete Upper Receiver M4E1-T 5.56x45mm NATO 11.5in Government Carbine Length 1 in 7 1/2 x 28 10.3in A2 Flash Hider Anodized OD Green

Aero Precision Complete Upper Receiver M4E1-T SM-15 5.56x45mm NATO 16in Government Mid Length 1 in 7 1/2 x 28 15in A2 Flash Hider Anodized Kodiak