In addition to being reliable and affordable the FX-9 was designed to be completely modular. Outfit it with any Freedom Ordnance barrel length and customize it with a nearly endless amount of AR-15 accessories. Also you can create just about any configuration you need for your next mission. Made in the USA this is freedom to the extreme. - Glock type magazine - Mil-Spec Buffer Tube Compatible - 3 Faux Suppressor - Free Float M-LOK Rail - AR-15 Configured Safety Selector - AR-15 Configured Rear Charging Handle - AR-15 Congfigured Mag Release - AR-15 Compatible Pistol Grip - OPERATING SYSTEM Blowback - CALIBER 9mm (9