

It has a 4.5" chrome-lined barrel with a 1:10" RH twist rate, giving the pistol an overall size of just 23.5" with the stock fully extended, and unloaded weight of 5 lbs., 6 ozs. Instead of the typical direct impingement gas system found in normal AR platforms, the RUK-9BT uses a blowback-operated action housed within a similar footprint.Ī closer view of the upper and lower receiver of the RUK-9BT from the left side. What sets it apart, however, is its 9 mm chambering. Its upper and lower receiver groups are similar and accept many of the same components, including standard safeties, grips and others. The Rock River Arms RUK-9BT large format pistol chambered in 9 mm Luger.īeing based off of the AR-15 platform, the RUK-9BT has several features that are immediately recognizable to those familiar with the former. American Rifleman Staff made a hands-on evaluation of the RUK-9BT back in 2020. The Rock River Arms RUK-9BT follows this same design basis, with the features and modularity of an AR-15 in a smaller, 9 mm Luger chambered, large format pistol form.

Rock River Arms is known for its AR-15 derived rifle and pistol platforms and, in recent years, has made strides in the expansion of its lines of pistol-caliber carbines and pistols.
