J&C Armament is a Polish manufacturer that has stood out on the market with its original Black Widow carbine. Derived from the AR-15, it features a completely redesigned upper receiver assembly and eliminates the buffer tube, or receiver extension, thanks to a recoil system fully contained within the receiver. This makes it possible to use various types of telescoping stocks that significantly shorten the carbine. Its operating system is based on gas impingement onto a short-stroke piston, with locking achieved by a rotating bolt. The Black Widow should be of particular interest to those looking for a compact PDW-type carbine.
In the Black Widow Mk III, slightly longer handguards were introduced, covering the gas block from below. / Photos: Michał Ihnatów, MILMAG
The booth also featured an entirely new design, the PCC SBR-9 carbine. This is a classic “AR-9” chambered in 9×19 mm Parabellum, structurally derived from the AR-15 and notable for the compatibility of many parts. Its operating principle is based on a classic straight blowback system with a closed bolt.
