The Lead & Steel AR-9 barrel is built for shooters who want reliability, accuracy, and long-lasting performance in their pistol-caliber builds. Made from 4150 Chrome Moly Vanadium steel and finished with a QPQ nitride treatment, this 8.3-inch barrel offers exceptional strength, corrosion resistance, and durability for high round counts. Threaded 1/2×28, its ready for a wide range of 9mm muzzle devices and suppressors, making it an excellent choice for AR-9 pistols or compact PCC setups where maneuverability and performance matter most.
“Diamondback 556C16MF50B8R DB Barrel (M4 Contour) 5.56x45mm NATO 16″ Black Nitride 4150 Chrome Moly Vanadium Steel” has been added to your cart. View cart
AR Barrels
Lead & Steel Llc LS9MM8.3-28 AR9 Barrel 8.30″ Nitride 1/2″x28
$89.14
Lead & Steel Llc LS9MM8.3-28 AR9 Barrel 8.30″ Nitride 1/2″x28
Availability: 8 in stock
| UPC | 7427053012546 |
|---|---|
| Manufacturer | LEAD & STEEL LLC |
| Manufacturer Part Number | LS9MM8.3-28 |
| Length | 8.30" |
| Model | AR9 |
| Rate of Twist | 1:10" |



