Quality aftermarket barrels are hard to come by, but you can ensure that you're getting the most reliable Glock performance possible when you install a Lone Wolf Arms AlphaWolf Glock 31 .357 SIG Barrel. These Pistol Barrels by Lone Wolf Arms are constructed from 416 stainless steel for durability and resistance to corrosive elements and abrasion. However, the stippled barrel surface and three-stage honed bore prevents the barrel from becoming too polished, and the extra care taken with the manufacturing process ensures that you get a long-lasting and reliable service life. Plus, the Lone Wolf Arms AlphaWolf Glock 31 .357 SIG Barrel has the industry-recognized Salt Bath Nitride (SBN) coating that increases surface hardness to RC 60, which helps prevent surface scratches, dents, and corrosion. Reliable lockup and superior performance are just a few of the many features that the Lone Wolf Arms AlphaWolf Glock 31 .357 SIG Pistol Barrel brings to the table. Specifications for Lone Wolf Arms AlphaWolf Glock 31 .357 SIG Barrel: Manufacturer: Lone Wolf Arms Color: Black Cartridge: .357 SIG Gun Make: Glock Gun Model: Glock 31 Additional Features: Normal Barrel Condition: New Features of Lone Wolf Arms AlphaWolf Glock 31 .357 SIG Barrel: Fits all Glock generations Designed for lead plated or jacketed ammunition Certified stress relieved 416 stainless steel Button rifled three stage honed bore Industry recognized SBN premium coating (SBN is Salt Bath Nitride similar to Tennifer) Heat treated to RC 40-42 then SBN coating increases surface hardness to RC 60 Exacting tolerances allow for drop in installation Fluting creates path for heat and debris to escape Package Contents: Lone Wolf Arms AlphaWolf Glock 31 .357 SIG Barrel