Rosco Manufacturing

This Rosco 5.5" 9MM Barrel is mainly designed for suppressed carbines and pistols where the handguard runs over the rail. It provides flexibility for a suppressed setup that is as compact as possible without sacrificing performance. Twist rates have been considered to optimize performance for various rounds you might use in your duty or concealed carry pistol, ensuring cross-platform ballistic compatibility. ALL NFA RULES APPLY! Rosco 9MM barrels are ideal for sub-caliber carbine platforms. Rosco has focused on understanding these platforms' purpose and designing a barrel that supports them effectively. Features : - "Barrel Length: 5.5";"Barrel Weight: 11 oz" - Barrel Material: 4150 CMV - Barrel Caliber: 9MM - Barrel Profile: Medium - Twist: 1:10 - Barrel Thread 1/2X28 - Barrel Crown: 11 Degree - Barrel Finish: Nitride - Barrel Extension Finish: Nitride