The Proof Research drop-in barrel for the Sig Sauer Cross is chambered in 308 Winchester with a 16-inch carbon fiber wrapped barrel and 1:10 twist. It has 5/8x24 muzzle threads and a 5-groove bore, and is guaranteed to headspace without a gunsmith.
- Manufacturer Part # : 134467
- Type : Bolt Action Barrel
- Caliber : 308 Win
- Barrel Length : 16"
- Bore : 5 Groove
- Thread Pitch : 5/8x24
- Finish : Carbon Fiber
- Fits : Sig Sauer Cross
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