The VooVoo Innovations Glock 27 9mm Conversion Match Grade Barrel is designed as an improved drop-in fit barrel for the Glock 27 while converting it from 40sw to 9mm. The VDI 27 Barrel is machined to tighter fitment tolerances to increase accuracy potential without the need of gunsmith fitting. The barrel features a SAAMI spec 9mm Match chambering, Match Grade Rifling to allow the use of any 9mm projectile (not just jacketed bullets), machined from 416R stainless steel, and Finished in Voodoo Innovations LifeCoat process.