5.56x45mm NATO Rifle Parts

CMMG Mk4 5.56X45mm NATO Resolute Upper Group Receiver 16.1in Titanium

CMMG Mk4 5.56X45mm NATO Resolute Upper Group Receiver 16.1in Charcoal Green

TRYBE Defense AR-15 5.56x45mm NATO 16in Complete Upper Receiver Pencil Mid Length1-7 Twist 1/2x28 A2 Black

TRYBE Defense AR-15 5.56x45mm NATO 16in Complete Upper Receiver M4 Carbine Length 1-7 Twist 1/2x28 A2 Black

TRYBE Defense Rifle Barrel and TRYBE Defense Self-Timing Muzzle Brake .22 Caliber/5.56 1/2x28

TRYBE Defense Crush Washer for A2 Flash Hider AR-15 .223/5.56mm & 9mm 1/2in Black

TRYBE Defense Medium Profile AR-15 Rifle Barrel .223 Wylde 20 in Black

TRYBE Defense AR-15 5.56 Complete Bolt Carrier Group BCG High-Polished Metallic Chrome Nitride

TRYBE Defense AR Small Parts Kit AR-15/M-16 5.56mm Black

Dirty Bird 13.7" 5.56 NATO 1:8 Midlength 416R Barrel - Nitride

Spikes Tactical Upper 5.56 16in CHF Midlength w/ 13.2in SAR3 Rail

Spikes Tactical Upper 5.56 16in CHF Midlength w/ 9in SAR3 Rail

Spikes Tactical Upper 5.56 11.5in FN CHF w/9in BAR2 Rail

Spikes Tactical Upper 5.56 11.5in FN CHF w/7in BAR2 Rail & FSP

Spikes Tactical Upper 5.56 11.5in FN CHF w/13.2in BAR2 Rail

Spikes Tactical Upper 5.56 11.5in FN CHF w/12in BAR2 Rail

Spikes Tactical Upper 5.56 11.5in FN CHF w/10in BAR2 Rail

Spikes Tactical Upper 5.56 11.5in FN CHF w/BLK MOE Handguards & FSP

Spikes Tactical Upper 5.56 14.5in 16in OAL CHF Midlength w/13.2in SAR3 Rail w/ Vortex

Spikes Tactical Upper 5.56 14.5in 16in OAL CHF Midlength w/10in SAR3 Rail w/ Vortex

Spikes Tactical Upper 5.56 11.5in FN CHF w/7in SAR3 Rail & FSP

Spikes Tactical Upper 5.56 16in Midlength LE w/9in BAR2 Rail and FSP Black

Spikes Tactical Upper 5.56 16in Midlength LE w/10in SAR3 Rail

Spikes Tactical Upper 5.56 16in Midlength LE w/10in M-LOK Rail