5.56x45mm NATO Barrels

Criterion Barrels 20in AR-15 HBAR Rifle Gas System Barrel SS Stainless Steel

Criterion Barrels 20in AR-15 HBAR Rifle Gas System Barrel Chrome-lined Parkerized

Criterion Barrels 18in AR-15 Fluted Rifle Gas System Barrel Stainless Steel

Criterion Barrels 16in AR-15 HBAR Mid Length Gas System Barrel Chrome-lined Parkerized

Criterion Barrels 18in AR-15 Hybrid Carbine Length Gas System Barrel Stainless Steel

Criterion Barrels 16in AR-15 Hybrid Carbine Length Gas System Barrel Chrome-lined Parkerized

Criterion Barrels AR-15 SBR Ultralight Barrel Mid-Length Gas Chrome-lined 14.5in

Criterion Barrels AR-15 SBR Ultralight Barrel Chrome-lined 12.5in

Criterion Barrels AR-15 SBR Ultralight Barrel Chrome-lined 10.5in

Ghost Firearms Elite Complete Upper Receiver 5.56x45 NATO 7.5 inch Pistol Length 4150 M4 Barrel 1-7 Twist 7 inch M-LOK Free Float Hand Guard A2 Flash

Ghost Firearms Elite Complete Upper Receiver 5.56x45 NATO 16in Carbine Length 4150 M4 Barrel 1-7 Twist 14in M-LOK Free Float Hand Guard A2 Birdcage

Ghost Firearms Elite Complete Upper Receiver 5.56x45 NATO 16in Carbine Length 4150 M4 Barrel 1-7 Twist 14in M-LOK Free Float Hand Guard A2 Birdcage

Sharps Rifle Company Precision 5.56 Nato/ 223 Wylde Sharps Barrel 1-8In With E6 Rifling Black

Wilson Combat SBR Bead Blasted Stainless Steel Barrel 5.56 NATO 11.3" 1:7 Twist

CMC Triggers 5.56mm 16" 1:7 Twist Barrel Nitride with Gas Block/Midlength Gas Tube

CMC Triggers 5.56mm 14.5" 1:7 Twist Barrel Nitride with Gas Block/Midlength Gas Tube

CMC Triggers 5.56mm 11.5" 1:7 Twist Barrel Nitride with Gas Block/Carbine Gas Tube

One Horse Carbine Gas Barrel 5.56 NATO 1/2x28 Thread 10.5" Black

TacFire 10.5" Unassembled 5.56 NATO Pistol Build Kit

Daniel Defense Threaded Barrel Assembly CMV CHF 5.56 16" Gov't Mid Length WLPG

Daniel Defense Barrel Assembly CMV CHF 5.56 10.3" Gov't Carbine Length WLPG

CMMG Barrel Sub-Assm 16.1inch MT 4140CM SBN 5.56mm

ATI Milsport AR-15 Complete Upper 16" Barrel with 15" M-LOK Rail

AR-STONER Barrel AR-15 Pistol 5.56x45mm NATO M4 Contour 1 in 7" Twist 10.5" Chrome Moly Nitride