5.56x45mm NATO Barrels

Noveske Lightweight Stainless Barrel - 18"

Noveske 14.5" Lightweight 5.56mm Stainless Barrel

Nemo Arms 5.56 NATO Barrel - 7.5" (Contract Overrun)

Nemo Arms 5.56 NATO Barrel - 11.5"

Luth-AR 11.5" Barrel 5.56MM Barrel 223 Remington 556NATO 11.5" Black 1:9

Lewis Machine & Tool (LMT) AR-15 MRP Chrome Lined 5.56 Piston AR-15 Barrel - 14.5"

Lewis Machine & Tool (LMT) AR-15 MRP Chrome Lined 5.56 Piston Barrel - 12"

JP Enterprises Supermatch Barrel With Headspaced Jp Enhanced Bolt 5.56 13.5in Black

JP Enterprises Supermatch Barrel With Headspaced Jp Enhanced Bolt 5.56 13.5in Silver

JP Enterprises Supermatch Barrel With Headspaced Jp Enhanced Bolt 5.56 10.5in Black

HM Defense HM 5.56 Nato 9.5" Straight Fluted SS Barrel 9.5SS-P-STF-556-108

HM Defense HM 5.56 Nato 9.5" Straight Fluted CrMo Barrel 9.5CR-P-STF-556-108

HM Defense HM 5.56 Nato 16" Twist SS Barrel 16SS-C-TW-556-108

HM Defense HM 5.56 Nato 16" Spiral Fluted SS Barrel 16SS-C-SPF-556-108

HM Defense HM 5.56 Nato 16" Straight Fluted CrMo Barrel 16CR-C-STF-556-108

HM Defense HM 5.56 Nato 16" Spiral Fluted CrMo Barrel 16CR-C-SPF-556-108

Harrington & Richardson Retro M16A1 Stripped Barrel Assembly

Ghost Firearms Complete Upper Receiver Pistol Lower Parts Kit 5.56mm 7.5in Pistol 4150 M4 Barrel 1-7 Twist 9in M-LOK Free Float Hand Guard Flash Can

Ghost Firearms Complete Upper Receiver Pistol Lower Parts Kit 5.56mm 7.5in Pistol 4150 M4 Barrel 1-7 Twist 9in M-LOK Free Float Hand Guard Flash Can

Ghost Firearms Complete Upper Receiver Pistol Lower Parts Kit 5.56mm 10.5in Carbine 4150 M4 Barrel 1-7 Twist 11in M-LOK Free Float Hand Guard Flash

Geissele Cold Hammer Forged AR15 5.56 Barrel

Geissele Automatics Geissele Cold Hammer Forged 5.56 NATO 11" CRMOV Gov't Profile Barrel Assembly 05-1247

Franklin Armory M4-HTF R2 16 inch 5.56 NATO Midlength Barrel Black

Franklin Armory XO-26 11.5 inch 5.56 NATO Carbine Length Barrel Black