| Sep 40 | Formed by expansion of the Royal Marine Siege Battery | |
| Sep 40 | Home Forces | UK |
| Mar 45 | Disbanded |
Equipment
| Sep 40 | 2 x 14 inch cross channel guns at Cliffe, Kent |
| Sep 40 | 3 x 13.5 inch Rail Guns – handed to army in 1943 |
The history of the Regiment in WW2