Armigers act as mobile support and outriders to keep larger Knights from being surrounded

and a concussion gauntlet or plasma blade gauntlet for close fighting

Extremely heavily armoured

Aggressor Squads are used as reserves to plug breaches in gun lines or to spearhead an advance

First and foremost the model is huge

Warhammer 40k - Adeptus Custodes: Custodian Guard Squad Abyssal Redeemer Armigers act as mobile supportBright and resplendent in gleaming gold, the Adeptus Custodes stride into war with the confidence their imposing stature gives them. Bullets and shrapnel ricochet from gilded breastplates these warriors are armoured with the finest wargear, carrying the blessing of the Emperor himself. With their guardian spears they spin, parry and thrust, their immense strength cutting down the enemy as the built in bolters deal death from afar. The Adeptus Custodes