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 Design! Stand-Alone And guaranteed To headspace Is Achievable at Your Own Home With No Gunsmith required! Length: 20" Model: Bolt Action Barrel Twist: 1:7.50" Bore Type: 4 Groove Finish: Carbon Fiber Barrel Type: Pre-Fit Barrel Features: Drop-In
