Springfield Armory has been importing its American take on the Croatian-made VHS2 5.56 NATO chambered bullpup carbine for a minute, and now they have expanded the line up to include both 18- and 20-inch variants, really growing the family.
The HS Produkt VHS is a legit combat rifle, already seeing some real-life service around the globe in some very armpit-quality places even though it is only about 15 years old. The improved second gen VHS2, which was introduced back in 2013, first came into the U.S. in early 2022 as a semi-auto version with enough Section 922 tweaks (BCM Gunfighter grip, Magpul mag, etc.) to make it compliant.
Debuted over here as the Springfield Armory Hellion with a 16-inch barrel, it has gained a reputation as a reliable, easy shooting, accurate, and feature rich (user adjustable gas system, fully ambidextrous, 5-position collapsible stock, swappable ejection port, excellent flip up iron sights on a full Pic rail, etc.) bullpup, outclassing a lot of the competition such as the Tavor, AUG, and FS 2000.