It took me 2 years to find it, but I finally found someone that sells a 2nd hand Circle Pad Pro XL with a price of about $17. I tested it with
Photos of the 3DS XL Circle Pad Pro
Anyone got a fix for a worn circle pad? (New 3ds xl) : r/3DS
Circle pad pro for the 3DS to Play RE Revelations. I love this game. : r/3DS
Replacement Grey Joystick Thumbstick Circle Pad Cap for 2DS 3DS & 3DS XL Good | eBay
Amazon.com: Deal4GO 3D Analog Joystick Button Module Stick w/Thumbstick Circle Pad Cover Cap Replacement for Nintendo New 2DS XL/New 3DS XL/New 3DS : Video Games
Amazon.com: Rinbers Pack of 4 3D Analog Joystick Button Control Cover Thumbstick Circle Pad Cap Replacement for Nintendo 2DS 3DS 3DS XL LL New 2DS XL New 3DS New 3DS XL LL
Circle Pad Pro Functionality Adds to "New" Nintendo 3DS - GameRevolution
Our Review of the Nintendo 3DS XL Circle Pad Pro - Hackinformer
Amazon.com: Nintendo Circle Pad Pro for Nintendo 3DS XL : Video Games
Circle Pad Pro XL Unboxing & Impressions - Affordable Alternative to New 3DS? - YouTube
Nintendo 3DS Circle Pad Pro - compatible with the original 3DS console (USA) | eBay
Nintendo 3DS XL Circle Pad Pro Unleashes Next Month In Japan - My Nintendo News
3DS XL Circle Pad Pro images
NINTENDO 3DS XL LL EXPANSION SLIDE PAD (CIRCLE PAD PRO) ATTACHMENT | eBay
/cdn.vox-cdn.com/uploads/chorus_asset/file/14062508/photo__Snapseed.1419974196.jpg "Nintendo 3DS XL Circle Pad Pro shown off by Capcom at TGS - The Verge")
Nintendo 3DS XL Circle Pad Pro shown off by Capcom at TGS - The Verge
Circle Pad Pro for 3DS Review - YouTube
Buy Nintendo 3DS Nintendo 3DS Circle Pad Pro | eStarland.com
Nintendo 3DS/3DSXL Circle Pad replacement by Quittenkompott | Download free STL model | Printables.com
Our Review of the Nintendo 3DS XL Circle Pad Pro - Hackinformer
/cdn.vox-cdn.com/uploads/chorus_asset/file/12799005/nintendo_3ds_xl_circle_pad.0.1488387800.jpg "Hands-on with the Nintendo 3DS XL Circle Pad Pro - Polygon")
Hands-on with the Nintendo 3DS XL Circle Pad Pro - Polygon
Amazon.com: Circle Pad Pro - Nintendo 3DS Accessory (3DS console not included) : Video Games
Well, I was wrong. 3DS XL is Getting a Circle Pad Pro After All | VG Confab
3DS XL Circle Pad Pro Unboxing + Impressions + Vita Comparison - YouTube
3DStick+ Metal (3DS Circle Pad) (76RHQ7ZEW) by Omniwheel
