Zaffiri Precision match grade barrels for SigSauer P320C (Compact) Slides using a 3.9" barrel. Does NOT fit the P320 X-Carry. High quality performance you demand with an easy drop-in barrel upgrade. This replacement barrel is precision manufactured in the USA to the highest standards providing exceptional accuracy. Conventional rifling with a polished chamber and bore to perform well with lead, plated, and jacketed bullets. This barrel is ready-to-use and is a perfect replacement for your existing Sig barrel.Features :,Fit: SigSauer P320 Compact compatible - Drop in fit - 9mm: 4.57" O.A.L (total length) with Thread Protector"1/2 x 28 muzzleTwist: 1:10Quality: 416R Stainless SteelStress relieved and heat treated to RC 40-42Target crown and oversized lock up area