https://www.amazon.com/McFarlane-Toys-Warhammer-Marine-Accessories/dp/B09F7P8N2M/ref=pd_sbs_sccl_2_2/137-5285560-7899216?pd_rd_w=tOvVi&content-id=amzn1.sym.44b0dc04-f99a-4419-a406-9567d0fa03fe&pf_rd_p=44b0dc04-f99a-4419-a406-9567d0fa03fe&pf_rd_r=EZC9B467MXMWRS3KBK9G&pd_rd_wg=YCe90&pd_rd_r=27fc899e-ab91-4a05-8f4e-ebd20acc6f97&pd_rd_i=B09F7P8N2M&psc=1
Here's a direct link, he's showing up for me in the related items of the regular chaos marine so if my link doesn't work try going to the link in the chaos marine post and seeing if the related items show the AP.