This 18 Gun Security Cabinet & Compact Ammo Cabinet combo features welded steel construction and an aesthetic beveled edge design. The heavy-duty door features a 4-way locking system and welded z-tabs that protect against pry attacks and key-coded cylinder lock for added security. The convertible interior allows for storage of up to 18 long guns or 9 long guns and 2 half-width steel shelves for the storage of ammunition, supplies and valuables. The molded barrel rests will accommodate single or side by side barrel configurations, also included are easy to install scoped rifle standoffs which help maximize capacity. One removable full width shelf adds storage space in either configuration. A Security Cabinet from Stack-On is an affordable way for anyone to keep their firearms safe and secure.