Glock G27 Barrel Features The Glock replacement barrel for the G27 is manufactured to the same factory tolerances as the barrel originally installed in the pistol ensuring consistent fitment and accuracy when swapped in. Because it is a genuine factory part rather than an aftermarket substitute owners can be confident in reliable function and long term durability matching the original equipment. This barrel is a straightforward drop-in replacement requiring no additional fitting for a properly maintained Glock 27. Keeping a factory spare barrel on hand is useful for owners who want a backup in case of wear damage or simply want to maintain a second complete slide assembly. For Glock 27 owners in .357 Sig who need a genuine factory replacement barrel this part is available for sale at GrabAGun. Glock G27 Barrel Specifications Brand: Glock Fits: Glock 27 Caliber: .357 Sig Barrel Length: 3.5 Available At: GrabAGun