Zaffiri Precision Barrel Features The Zaffiri Precision Barrel is precision manufactured in the USA to exacting standards providing exceptional accuracy over a stock Sig Sauer P365 barrel. Conventional rifling paired with a polished chamber and bore helps the barrel feed and stabilize a wide variety of bullet types including lead plated and jacketed projectiles. Its 1:10 twist rate is matched to typical 9mm bullet weights supporting consistent accuracy across common defensive and target loads. Six-groove rifling contributes to a clean bore finish that eases cleaning and maintenance after range sessions. Machined from stainless steel and finished in black nitride the barrel resists corrosion and wear while maintaining a smooth low-friction bore surface. It is threaded at 1/2x28 and ships with a thread protector letting owners add a suppressor or compensator without sourcing a separate adapter. Designed as a true drop-in replacement the barrel installs into the factory P365 slide without additional fitting or gunsmithing. This makes it a straightforward path to improved accuracy and added versatility for any P365 owner looking to upgrade their carry or range pistol. Zaffiri Precision P365 Barrel Specifications Brand: Zaffiri Precision Caliber: 9mm Luger Compatible Hosts: Sig Sauer P365 Barrel Finish: Black Nitride Barrel Material: Stainless Steel Barrel Type: Drop In Barrel Length: 3.77 Twist: 1:10 Grooves: 6 Includes: Thread Protector Thread Pattern: 1/2x28 Weight: 6 oz Available At: GrabAGun