The Just Right Carbines JRC is an AR-15-profile pistol-caliber carbine that accepts Glock 17 pattern magazines through a lower receiver designed to accept them directly — a simpler approach than dedicated PCCs using conversion blocks. The JRC uses a simple blowback action and accepts standard AR-15 pistol grips and stocks. The takedown model disassembles without tools for compact storage. Type: Rifle Action: Semi-Automatic Caliber: 9mm Capacity: 17 Year introduced: 2011, USA Weight: 84 oz Overall length: 36" Status: Active Intended use: sporting, home_defense, plinking