10.5" may get you some complaints........
Caliber: 300BO
Barrel Length: 10.5"
Barrel Steel: 4150v
Barrel Coating/Treatment: QPQ Black Nitride
Gas System: Pistol
Twist Rate: 1:7
Rifling: 5R
Muzzle Thread: 5/8x24 (RH)
Extension: M4
Profile: Thicc and Girthy
M16 Nickel Boron Full Auto BCG Assembly
Proudly Made in the USA