Assertion: tank's armament | /r/HasProperty | 120 mm smoothbore gun
Facets:
Source sentences:
text: (Tank Test Bed): Prototype with unmanned turret, 3 crew members in armored capsule in front of the heavy armored hull, main armament was 120 mm smoothbore gun, M256 derivative or modification, mechanical loading system under turret, never fielded.
text: The main armament is a 120mm smooth bore cannon, which replaced the 105mm gun on the initial M1 version.