Available for In-Store Pick Up One new Heckler and Koch HK416, .22 long rifle. This carbine has a 16.1 inch barrel, flip up front and rear sight, M-Lok handguard, collapsible stock and comes with a 10 round magazine, a cable lock, the factory manual and a factory cardboard box. This rifle is pictured with a 20 round magazine but comes with a ten round magazine.