(MRK). It was very similar to the related 15 cmMRKL/25 and 15 cmMRKL/30, and the somewhat later 15 cmMRKL/40. Like these, it was a rifled breech loader
The 15 cm Mantel Ring Kanone L/30, known as 15 cm Kanone L/30 was a 15 cm 30 caliber long Krupp Mantel Ring Kanone (MRK). It was a rifled breech loader