FM Barrel Kits with Ready-to-go Gas Block

These exclusive barrel kits for Brownells from FM 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 chambered barrels also feature a 1-7 twist, for optimal performance with military style or heavy bullets.  The 223 Wylde chamber accommodates 223 Remington and 5.56x45mm NATO ammunition equally well.  Muzzle threads are ½-28.