The common SMG takes advantage of a ten.5 inch barrel Using the regular “chicken cage” flash suppressor and regular carbine handguards. The barrel contains a chrome lined bore and chamber. The barrel is usually made in 16-inch size for the industrial/LE carbines. All goods located on our Site are available https://colt-smg-upper-receiver41740.ka-blogs.com/79930174/a-secret-weapon-for-colt-9mm-upper