Proof Research’s 138960 bolt action barrel eliminates the need to send your Sig Cross out for barrel work. The drop-in design allows you to swap barrels at home without gunsmith assistance, and every barrel comes headspaced and ready to fire.
This pre-fit barrel chambers 260 Rem and measures 20″ in length with a 1:8″ twist rate and 5 groove rifling. The 5/8″-24 tpi threaded muzzle accepts standard suppressors and muzzle devices. Constructed from stainless steel, the barrel delivers corrosion resistance and reliable performance.
