This AR-Stoner AR-15 Pistol Barrel is fully chambered and ready for installation onto a host upper receiver. The barrel uses the popular and versatile 223 Wylde chamber, which has a longer throat than the SAAMI spec for 223 Remington to allow for the safe usage of 5.56x45mm NATO ammunition and enhanced reliability. However, accuracy potential is also greater than a 5.56 NATO chamber due to slightly tighter tolerances, making the 223 Wylde an ideal compromise that retains the benefits of both of the other two chamber options. The 1 in 7" Twist Rifling is capable of stabilizing light to medium weight projectiles of up to about 69 grains. This is the perfect barrel for a value AR Pistol build, keeping length and weight to an absolute minimum while still offering a significant ballistic advantage over any of the traditional pistol chamberings found in common use defensive carbines and/or PDW's. Barrel extension and locator pin are both included and factory installed.
- Length: 7.5"
- Material: 4140 Chrome Moly Steel
- Contour: Medium
- Chamber: 223 Wylde
- Twist Rate: 1 in 7"
- Chrome Lined: No
- Finish: Manganese Phosphate (Parkerized)
- M4 Feed Ramps: Yes
- Muzzle Thread Pattern: 1/2"-28
- Gas Port Location: Pistol
- Exterior Diameter at Gas Port: 0.750"
Please Note: An "AR-15 Pistol" barrel is less than 16" in length. Pistol barrels are only for use on AR-15 pistol lowers and legal Short-Barreled Rifles. Other configurations may violate Federal law.