The regular SMG utilizes a 10.five inch barrel with the common “chook cage” flash suppressor and regular carbine handguards. The barrel features a chrome lined bore and chamber. The barrel is also manufactured in 16-inch length for that business/LE carbines. It’s always imperative that you thoroughly inspect the markings and https://colt-smg-upper35682.blogsvila.com/26846940/an-unbiased-view-of-colt-10-5-inch-9mm-smg-upper-receiver-assembly