WR-40 Langusta is a Polish self-propelled multiple rocket launcher developed by Centrum Produkcji Wojskowej HSW SA.

The Langusta (crawfish) is based on a deeply modernized and re-worked Soviet cold-war era BM-21 launcher.

The old petrol Ural-375D truck chassis was replaced with a modern one, and the launcher was fitted with a fire control system.

[2] The carrier used is Polish 6x6 Jelcz truck model P662D.35 with low-profile armoured cabin for a whole crew.

[2][3] Also new ammunition Feniks-Z with 42 km range was adopted.