Space Marine power armor has gone through many variations over the years (both in-universe and out). One of the more popular variants is the “Beakie” style. With the new version of The Horus Heresy coming out soon, Games Workshop is also bringing out some new, plastic Beakie marines for you.
From the article:
The secret’s out – there’s a new edition of Warhammer: The Horus Heresy on its way later this year. The new edition features a smorgasbord of incredible new plastic models, so we’ll be dedicating every Thursday in April to some fantastic new models. And there’s no better place to start than with the very latest in cutting-edge power armour technology* – the Mark VI Corvus Armour, a.k.a “the beakie”.