VHS went through service life testing it fired 50,000 rounds without suffering any main part failures. The barrel has a birdcage flash suppressor and can fire rifle grenades. Like the FAMAS, it has a sliding grenade boom guide and grenade high-angle launching sight to aim when the rifle is turned on its side, but the sight is mounted on the underside of the carrying handle on the VHS instead of under it. The rifle and carbine have different gas regulators, both with three settings changed by pushing in and turning 120 degrees: normal; high (larger opening for weak ammunition); and cut-off (for rifle grenades). One drawback of the VHS is its poor ergonomics. The fire selector has three positions for safe, semi, and automatic fire with no 3-round burst option. Production model rifles have the selector inside the trigger guard. Changing firing modes is difficult as the crank must be rotated a long distance before either firing mode is selected. It is also for right-handed use only; the receiver can only eject shells out the right side and cases leave sharply toward the rear, with a chance of hitting an extended elbow. This is unfortunate, as the non-reciprocating cocking handle is located centrally under the carrying handle and can be pulled from either side. Models presented in 2008 showed the VHS being STANAG magazine compatible. This was changed shortly after to accept HK G36 magazines. The reason was because the Croatian military has more G36s (which the VHS will replace) than M16-type rifles. Variants VHS-D The first VHS rifle made by HS Produkt, outfitted with rifle grenade discharging adapters and bayonet lugs. VHS-K A carbine version of the VHS rifle. VHS-2 The VHS-2 was shown to the public for the first time in April 2013, during the Adriatic Sea Defense & Aerospace (ASDA) exhibition in Split, Croatia. Its improvements include a more conventional fire selector, a redesigned carrying handle, an adjustable-length buttstock, and an ambidextrous cartridge casing ejection system that can be reconfigured in less than a minute. The VHS-2 line consists of the VHS-D2 assault rifle and the VHS-K2 carbine. Springfield Hellion A semi-automatic version of the VHS-2 made for Springfield Armory, which was unveiled in January 2022. Users : Used by the Albanian State Police. : Bosnian federal special police are armed with VHS-K2 rifles. : Used by the military. : Standard weapon of the Croatian Army, replacing