Monthly Lineup Reveal

The May Roundup Box lineup is now live!

To see exactly what went into ride #006, check out our Guide Book — complete with packs, highlights, and collector notes.

👉 View This Month’s Guide Book (Lineup Insight, Key Players, Popular Pulls) →

Guide Book Ride #006 May 2026

👉 Shop Remaining Boxes (while supplies last) →

Arthur's Roundup Box Ride #006 May 2026 

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Additional Information

Upcoming Roundup Box Lineup

June Ride #007

• Subscribe or purchase as a one-time box by 5/25 to get in on the initial shipments and see the lineup first.  
• Boxes ship by 6/1. Arriving in 3-5 business days during the first week of May.
• Lineups revealed and extra boxes posted to the shop on 6/12.

Past Lineup Reveals

Each month's lineup is officially documented in our Roundup Box Guide Books, including pack details, rookie highlights, and collector notes. To view:

• Visit our Roundup Box Guide Books page
• Or scroll to bottom of page for photo, full lineup, and link to guide book.

Lineups are also listed on each individual Roundup Box ride's product page:

•  Roundup Box Archives.

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🤠 Why We Do Lineup Reveals

At Arthur’s, transparency matters.

We reveal the full monthly lineup 2 weeks after boxes ship so all collectors can:

• See exactly what went into each ride
• Learn about the packs included
• Reference rookie classes and chase potential

Why wait 2 weeks to release this month's lineup?

• Simply put, it allows time for our subscribers and early purchasers to receive their box and see the lineup first. This preserves the element of surprise our riders love when opening their box each month.  

📦 How The Timing Works

• The pre-order/subscription window closes on the 25th of the month prior to release. (Ex. March Roundup Box window closed 2/25 at 11:59pm MST)
• Boxes ship the first week of the month
• Lineup reveal occurs on the 2nd Friday after boxes ship. 
• Extra boxes released in the shop once the reveal is posted.

Ready For The Next Ride?

👉 Get the Current Roundup Box
👉 Browse Past Boxes
👉 Explore Guide Books

Built by collectors. Shipped from our shop. Always factory sealed.

If you have questions about lineups, shipping, or subscriptions, our Roundup Box FAQs cover the most common topics.

👉 View Roundup Box FAQs