Proof Research Pre-Fit Bolt Action Barrel, 20" Carbon Fiber Barrel 1:7.50" Twist (4 Groove), 5/8"-24 tpi Threaded Drop-In Design for Sig Cross 6mm Creedmoor - 134559

Product Features & Specifications Proof Research 134559 Bolt Action Barrel Pre-Fit 6mm Creedmoor 20" 1:7.50" Twist (4 Groove), 5/8"-24 tpi Threaded, Carbon Fiber, Drop-In Design for Sig Cross The times of sending off your Sig Cross to have the barrel changed is over with Proof's drop-in barrel D