Template:FtStevensBatteryClark
| No. | Caliber | Length | Model | Serial No. | Manufacturer | Carriage | Service Dates | Notes | |
|---|---|---|---|---|---|---|---|---|---|
| A-1 | 12" Mortar Rifle | 129.25" | 1890MI | 32 | Builders | Mortar, M1896MI, #121, Am. Hoist & D. Co. | 1899-1942 | ||
| A-2* | 12" Mortar Rifle | 129.25" | 1890MI | 29 | Builders | Mortar, M1896MI, #124, Am. Hoist & D. Co. | 1899-1917 | To Battery Guenther 1917 | |
| A-3 | 12" Mortar Rifle | 129.25" | 1890MI | 50 | Watertown | Mortar, M1896MI, #122, Am. Hoist & D. Co. | 1899-1942 | ||
| A-4* | 12" Mortar Rifle | 129.25" | 1890MI | 35 | Builders | Mortar, M1896MI, #123, Am. Hoist & D. Co. | 1899-1917 | To Battery Guenther 1917 | |
| B-1 | 12" Mortar Rifle | 129.25" | 1890MI | 51 | Watertown | Mortar, M1896MI, #237, Am. Hoist & D. Co. | 1899-1942 | ||
| B-2* | 12" Mortar Rifle | 129.25" | 1890MI | 48 | Watervliet | Mortar, M1896MI, #119, Am. Hoist & D. Co. | 1899-1917 | To Battery Guenther 1917 | |
| B-3 | 12" Mortar Rifle | 129.25" | 1890MI | 34 | Watertown | Mortar, M1896MI, #133, Am. Hoist & D. Co. | 1899-1942 | ||
| B-4* | 12" Mortar Rifle | 129.25" | 1890MI | 52 | Watervliet | Mortar, M1896MI, #120, Am. Hoist & D. Co. | 1899-1917 | To Battery Guenther 1917 | |
| Source: Coastal Defense Study Group | |||||||||
*Exact battery location unknown