Shadow Systems barrels feature minor improvements intended to create more consistent lockup without compromising reliability. The chambers are fully supported and can be fired with hot P ammo and lead bullets. The sample barrels that have survived 5 proof rounds so it is unlikely you will have issues with any mainstream, commercially available ammunition.
Specifications:
- For MR920/XR920/MR918
- Titanium Copper Nitride Finish
- Threaded Barrel
- Spiral Fluted
- 4.5 Barrel"