Fireforge have recently released box sets of plastic Samurai and Ashigaru. The Samurai Warrior box builds 24 heavily armoured samurai warriors armed with swords, naginatas. spears with straight blades and pollards with cross blades. These boxes come with Round 25mm bases..
There is a Samurai Shooter box, but that does not map on to Oathmark or Lion Rampant very well.
There are four body sprues. They contain enough parts for six warriors, six torsos and seven sets of legs, the additional set of legs is a crouching one usable in the Shooter set.
There are various helmeted heads, but not quite enough to equip all six with generic helmets.
One thing to note, these figures do not have puddle bases.