The perfect complement to your handgun! 100% American made JUST RIGHT CARBINES accept Glock or M&P magazines and are available in: 9mm, .40 S&W, .357SIG and .45 ACP. Every JR Carbine includes a Limited Lifetime Warranty. Built on reliable blowback operation, the JR Carbine is ambidextrous and can easily be converted between calibers. Including a Mil-spec Picatinny rail and threaded barrel, the JR Carbine will accept almost any AR accessory. Available with a 13" KeyMod Rail System or in a Takedown model and legal in 50 states, there is a Just Right Carbine that's right for you. (less)