These uppers are made from an M11/9 upper receiver so the ejection port is larger than the standard 380 upper receiver. This upper can be configured in with the following barrel options:
- Standard .380 barrel.
- Standard M11/9 barrel.
- Standard M11/9 barrel converted to .380.
- M11/9 4 1/2″ stubby barrel with 1/2 x 28 threads.
- M11/9 4 1/2″ stubby barrel converted to .380
This product is just the upper and barrel with no bolt. This item is a special order item, please allow at least two weeks for shipping.