5.56x45mm NATO Rifle Parts

RUGER AR556 5.56 NATO AR15 Stripped Lower Receiver - Black

Sons Of Liberty Gun Works Scalper Stripped Lower Receiver Complete Lower Multi-Cal

M4-L89 5.56x45 Nato Assembled Upper Receiver - M4-L89 5.56x45 Nato 13.7''''bbl 13.75'''' L89 Rail W/Huxwrx Xl

Colt Firearms LE6933EPRII Complete Upper 5.56 11.5 Threaded Barrel

PRI Mark 12 Mod 0 Gen II AR-15 Complete Upper Receiver 5.56x45mm NATO 18" Barrel 1:7" Twist Flat Dark Earth

PRI Mark 12 Mod 0 Gen II AR-15 Complete Upper Receiver 5.56x45mm NATO 18" Barrel 1:8" Twist Black

Nosler SR-22 ALTiH Suppressor Black

GEMTECH Abyss 5.56 6.1" Rifle Silencer / Suppressor - Black

Hexmag AR15 HexID Color ID System 4 Pack Green

DPMS M4 Complete Upper 5.56 16 Barrel w/ Quad Rail

DPMS AR-15 Complete Upper 5.56 16 Barrel

FightLite Industries DFX Complete Upper 5.56 / .223 Rem 12.5 Threaded Barrel w/ 100 M27 Links

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

AERO PRECISION LAHAR-30, Direct Thread (1/2-28) - Black

Aero Precision M4E1 AR15 5.56mm 8in M-LOK Threaded Upper Receiver Pistol Length 1-7 Twist 1/2x28 A2 Flash Hider 7.3in M-LOK R-ONE Handguard Cerakote

Aero Precision M4E1 Threaded Complete Upper 7.5in 5.56 Barrel ATLAS R-ONE 7in M-LOK HG Anodized Black

M16a4 Clone Lower Receiver - M16a4 Clone Stripped Lower Receiver For Ar-15 Black

Aero Precision AR-15 Complete Upper Receiver 5.56 Carbine Length 10.5 inch Barrel w/Pinned FSB Magpul MOE Handguard A2 Flash Hider Anodized Black

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

Aero Precision AR-15 Complete Upper Receiver 5.56 Rifle Length 20 inch Barrel w/Pinned FSB Magpul MOE Handguard A2 Flash Hider FDE Cerakote

Aero Precision M4E1-T Complete Upper Receiver Threaded 5.56x45mm Mid Pencil 16in Barrel ATLAS S-ONE 15in Handguard M-LOK Anodized Black