300 Blackout Barrels

10.5" .300 Blackout Pistol Length 1/7 Twist AR 15 Barrel, Modern Series

10" .300 Blackout Pistol Length 1/7 Twist AR 15 Barrel, Modern Series

9" .300 Blackout Pistol Length 1/7 Twist AR 15 Barrel, Modern Series

8" .300 Blackout Pistol Length 1/7 Twist AR 15 Barrel, Modern Series

10.5" 300 Blackout Pistol Length 1:8 416R Stainless Steel Barrel

16" 416R Stainless Steel M4 Contour Barrel .300 Blackout Carbine Length G 1:8 Twist

Green Mountain 300 BLK AR-15 Barrel 16" M4 Fluted Phosphate

Green Mountain 300 BLK AR-15 Barrel 12.5" M4 Phosphate

One Horse 7.5" .300 BLK SOCOM Pistol 1:7 M-LOK Complete Upper

5" 300 BLACKOUT MICRO PISTOL MED PROFILE 1:5 RH TWIST M4 BARREL EXTENSION 4150 CrMoV BLACK NITRIDE FINISH

10.5" 300 BLK 1:7 Twist Phosphate Pistol Heavy Barrel

16" .300 BLK 1:7 Black Nitride Pistol Length Barrel

7.5" 300 BLK Heavy Contour 1:8 Pistol 41V50 Barrel - Parkerized

8.5" 300 Blackout Parkerized Heavy Barrel 1:8 Pistol Length

7.5" 300 BLK 1:7 Pistol Length Parkerized Barrel

16" .300 BLK Parkerized 1:8 Heavy Profile Carbine Length Barrel

5" .300 BLK 1:5 Micro Black Nitride Barrel

WMD Guns .300AAC Blackout Threaded AR Barrel 16in M4 Pistol Length 1-8 Twist Nitromet Black

WMD Guns .300AAC Blackout Threaded AR Barrel 10.5in Pistol Length 1-8 Twist 5/8x24 Nitride Black

V Seven Weapon Systems 300BLK Fluted Barrel w/ Ti Gas Block - 6.5"

V Seven Weapon Systems 300BLK Non-Fluted Barrel - 6.5"

V Seven Weapon Systems 300 AAC BLACKOUT BARREL - 5.5"

Spinta Precision AR-15 300BLK Cold Hammer Forged Barrel - 8" (Limited Production)

Sons Of Liberty Gun Works East India Starter Kit .300 BLK Barreled Upper - 16"