SHADOW 4.5" BRL MR/XR THREADED-BRN

Shadow Systems Match Grade, 4.5" Threaded Barrel, Spiral Fluted, 9MM, Fits Shadow Systems MR/XR Models, Titanium Carbo-Nitride Finish, Bronze SG9C-02-03TSPL-BRZ

Shadow Systems barrels feature minor improvements intended to create more consistent lockup without compromising reliability. Barrel chambers are fully supported and can be fired with hot +P ammo and lead bullets. Shadow Systems' has sample barrels that have survived 5 proof rounds so it is unlikely you will have issues with any mainstream commercially available ammunition. Shadow Systems' broach cut their rifling 1/10 which is a common twist rate for match barrels in 9mm. They use a conventional rifling so their barrels are safe to use with lead or moly coated lead bullets (explanation: polygonal rifled barrels require jacketed ammunition restricting the options for inexpensive practice ammunition). Shadow Systems barrels feature beautiful spiral fluting and chamber pockets. This machining modestly reduces barrel weight and gives dirt carbon or other debris a place to go limiting functional impact. Flutes also have helped the guns stay lubricated longer in their testing. All of their barrels are 100% Made in the USA and are custom designed from U.S. sourced materials.