M101/M2A1
105 mm howitzer M101/M2A1 upgrade
Upgrade of the 105 mm M101/M2A1 howitzer that replaces the 23-calibre barrel with a 33-calibre barrel fitted with a double baffle muzzle brake, together with a higher-pressure breech and breech block, a new equilibrator spring and added trail weight, raising range to 18.1 km with the HE-ER base bleed projectile and 15 km with the HE-ER boat-tail projectile.
Also written: 105
Enlarge 105 mm howitzer M101/M2A1 upgrade
Specification
| Range with HE-ER BB projectile | 18.1 km |
|---|---|
| Range with HE-ER BT projectile | 15 km |
| Range gain with HE-ER BB round | 60% |
| Range gain with HE-ER BT round | 32% |
| Barrel upgrade | 33-calibre barrel replacing the existing 23-calibre barrel |
| Muzzle brake upgrade | New double-baffle muzzle brake |
| Breech upgrade | Breech and breech block replaced with equivalent higher-pressure steel parts |
| Equilibrator upgrade | Equilibrator spring replaced |
| Trail modification | Additional weight added on the trails |
| Barrel weight (M101 / upgraded) | 290 / 385 kg |
| Barrel length (M101 / upgraded) | 2363 / 3500 mm |
| Weapon length (M101 / upgraded) | 6000 / 7050 mm |
| Muzzle brake (M101 / upgraded) | No baffle / double baffle |
| Maximum rate of fire (M101 / upgraded) | 8 / 8 rounds/min |
| Upgrade kit weight | 250 kg (12% of the standard M101/M2A1 howitzer weight) |
All data provided for information purposes; final specification is defined per contract.