Adeptus Custode conversion

The First Heretic book coverAs part of a bigger commission, I was tasked with building a Custode model that was similar to the one seen on the cover of the book, The First Heretic.

While we made some changes to the model and it ended up not being an exact match to the cover, I think we captured the feel of the Custodian armour.

Those two handed weapon poses can be tough too. You don't realize how "off" the heroic scale can be until you get into these kinds of things.

I'm going to touch on the key points for this guy like I did for the Chaplain conversion. There were a number of things I tried to replicate in this model in order to capture the feeling.

The legs and lower half of his body
The first I was missing was reference for the lower torso. There's lots of art out there and everyone has their take on it. I decided to combine a few elements from here and there into something that would fit with what I had for the upper torso.

Custode conversion Grey Knight legs

My initial plan was to use some of the ornate Blood Angel legs, but after Grey Knights came out, I decided to go with a set of those to have the front tabard and the armour without the articulated knee joints. I choose that because of the elbows and modified shoulderpads on this guy.

I knew if I kept one part of his armour "clean" looking, it would be best to keep all of it like that. My plan was to keep the shoulderpads clean and so I removed the iconography from his right leg with an X-Acto blade to match. While the armour is more ornamental in it's shape, it's a bit more simple in it's construction. Less trim and articulation, designs if present are bolted on... that kind of thing. The armour is still more functional at this point.

I mean, he's still wearing leather gloves for crying out loud.

I knew I wanted the hip plates similar to what Terminators wear, but I wasn't sure how to get them at first. A quick look through the bits box came up with this solution. Using the groin plate with the iconography cleaned off (for the clean, uncluttered look), I managed to find two that I could use.

They fit perfectly at the top of his legs and look like they've always been there. In some of the later photos, you'll see that I added a half tabard to his back as well to match the front one.

His weapon
The weapon was going to be a big challenge. I knew this right from the start. It had to match the picture or he would be mistaken for a Grey Knight every time. I guess you could call it the "old school" version know since it has the bolt pistol built into it and all the cool kids have them strapped to their wrists instead these days.

Adeptus Custode weapon halberd conversion bits

I'm not gonna lie, this was the hardest thing to build on the guy and should be undertaken with the utmost in patience and a brand new X-Acto blade. If you're not comfortable working with tiny,delicate pieces, then this conversion job may not be for you.

It requires the bits seen above (and we're only using the red portions) along with some greenstuff and a handful of pins to hold it all together. There is something else you'll need and that's a piece of plastic (round) so that you can scratchbuild a new barrel for the bolt pistol. I ended up using a portion of a plastic banner pole that I cut to length and carefully drilled out for effect.

Adeptus Custode weapon conversion

The finished weapon is somewhat fragile given it's shape and size, but it adds so much to the completed piece. Without it, I don't think the model would be the same. He'd look like every other Grey Knight out there. And the greenstuff cables are just supper thin pieces rolled out and glued in place after the whole thing was assembled and attached to the model.

The torso based of the book cover
Adeptus Custode torso conversionThe torso started out as the regular Sergeant torso with the raised collar piece. I knew I was going to have to make a few modifications to it.

The collar had to be built up and I had to remove the center skull and replace it with a single gem.

I ran two sets of cables from around back up to his abdomen. The front connection points would later be covered with his belt buckle. I built his belt buckle (seen in later pics) with an oval piece of plasticard and some greenstuff over it for texture. I wasn't too worried about the actual design as I knew it was going to be partially covered with his arms and short sword attached to his belt later on.

Adeptus Custode conversion arm positioning

This portion took the longest to get right. With his arms, I needed to keep a number of things in mind as I put them together. I ended up greenstuffing his shoulder joints along with his wrists and needed to make sure the arms would fit over his chest without creating problems for his shoulderpads to be attached later on. What a production getting this part together.

The shoulderpads
These were the most time consuming. Not the hardest thing to build, but they took forever to get done. It wasn't until I was looking over the artwork one day that I realized they were shaped differently than regular shoulderpads.

The bottoms were angled and not level. What a huge difference. There was no way around this one. Had I left them "normal," my Client would have most likely been disappointed and this guy would have crept that much closer to looking like a regular power armoured marine.

In the end, it's a subtle conversion, but it changes the feel of the model considerably and gives him a very unique look.


I started with a set of regular Chaos shuolderpads that had the flange on them. I filled in the dents with greenstuff and removed all the Chaos iconography. Then came the hard part of adding the angled portion to the bottoms.

I superglued a small piece of cardstock into each shoulderpad making sure that (#1) it didn't go up too far (and reduce the space for the arm) and (#2) that it was positioned at the correct angle for the shoulderpad to continue on. It also had to go all the way around and form to the inside shape of the shoulderpad (#3). This was going to form my framework I was going to sculpt the additional portion on top of.

Adeptus Custode conversion shoulderpads Once the cardstock was glued in place, I added my lines so I knew where to cut it away for the additional angled part.

Once I had the excess cut off, I used my superglue and added a few more drops to the cardstock to secure it in place so I could actually sculpt over it.

I tried to make sure both pieces were at the same angle and matched as close as possible.

I went so far as to label each one (R and L) once I got started because as I worked, one would look better on a particular arm over the other one.

With something like this, it's almost impossible to get an exact match, so putting them on the arm that they "fit" onto better was the smart thing to do.

Adeptus Custode conversion shoulderpad sculpt

The actual sculpting wasn't impossible... the hardest part being to make sure the underside edge was a perfect as possible since the arms were going to be raised and it would be visible.

Before I added the angled portion, I carefully scraped away the bottom piece of trim so it was smooth. I also cut it back at a slight angle so I was not trying to sculpt right up to a corner. This allowed me to feather my greenstuff edge for a super smooth transition.

Once everything had cured, I went in with my X-Acto blade and cleaned up the surfaces slightly trying to get my corners and edges as sharp as possible so it didn't look like a sculpt. While these shoulderpads really make the model stand out, this is a one-off. Doing this for an entire force would be too much and you'd really need to find a way to cast a handful of them if you were serious about using this style.

The completed model

Adeptus Custode conversion front

Adeptus Custode conversion back

Adeptus Custode conversion close up

A few final notes:
You can see one of the "key" Adeptus Custode elements of the pointy helmet is not there. Instead, we opted for the unhlemeted head with mowhawk for good measure.
The purity seals are made from cardstock and shaped to fit the position. I wanted the long flowing ones seen on the model.
The short sword attached at his belt comes from the Space Wolf sprue (minus the iconography).
And the base comes from Secret Weapon miniatures, they are from the Urban Streets theme.

Up to this point, my only other experience with Adeptus Custodes has been painting a squad for a friend of mine. These guys are unique and with some much artwork out there, it can be tough sometimes to nail down exactly what you want your's to look like.

Make no mistake, when done well, they are an absolutely gorgeous force. I hope that I've been able to take the artwork, come up with a solid feel to the model and make it something my Client can use in his army. It's been a challenge building this guy.


Ron, From the WarpIf you've got any questions about something in this post, shoot me a comment and I'll be glad to answer. Make sure to share your hobby tips and thoughts in the comments below!