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Release date: 8 August 2026
Builds 20 Tactical Marines in MkIV Maximus armour
Enough parts for two Sergeants — run 2x10 or one 20
Compatible with all previous weapon upgrade sets
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MkIV Maximus is the pattern most people picture when they picture a Horus Heresy legionary, and this is the box that fills out a Legion properly. Twenty Tactical Marines in one go, with the flexibility to run them as two squads or one enormous blob that walks up the table and refuses to die.
What's in the box
Builds 20 Tactical Marines in MkIV Maximus pattern power armour
Enough parts to build two Sergeants
A set of vambrace parts for every Space Marine in the box
Weapon & wargear options
Compatible with all previous Legiones Astartes weapon upgrade sets
The included vambraces let arms from other upgrade kits read as classic MkIV
That compatibility is the quiet selling point. Any upgrade sprue you already own drops straight in, so the kit works as the backbone of a new Legion or as reinforcements for one you have been building for years.
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