300 BLK 5/8" X 24- 33K Length Barrel
New US Made HK 33K length 12.5″ .300 Blackout Barrel- 5/8″- 24
Each barrel was designed for use with the wildly popular AAC style quick detach muzzle breaks and cans in the 5/8″ -24 thread pitch. Although, this barrel is perfect for just about any .300 BLK can or application.
- Made in the USA
- 922r Compliant (counts as 1 US made part)
- Made From 4140 Steel
- Nitride Finish (Same process that Sig & Glock use)
- Can be used with all weight and grains of .300 BLK ammo
- Overall Length – 12.5″ inches
- Chambered – 300 Blackout
- 1/7 barrel twist
- Threaded 5/8″-24
- Fully Fluted Chamber
RCM barrels are the finest US Made barrels available & come highly recommended by HKPARTS.
- Origin: USA
- Brand: RCM