These exclusive barrel kits for Brownells from Foxtrot Mike Products feature an included gas block that ensures proper alignment and a good gas seal every time. The gas block indexes with a small cutout in the barrel, so that you no longer have to worry about short stroking due to a canted gas block. The gas block and barrel are also pre-cut for the included roll pins, which makes for an extremely robust attachment method, no set screws to worry about coming loose! Barrels are available in 16, 13.9 and 12.5 inch lengths. The 13.9 option is great for pinning and welding muzzle devices, and the 12.5 is a solid option for pistols or SBRs. Machined from 41v50 steel, these 223 Wylde chamb Mfg: Foxtrot Mike Products