I bought 2 of these but ended up selling my K1 before I installed it. The other is on my GK1.
This is the eBay listing I ordered from.
I’m asking $30 shipped in the US.
This is the eBay listing I ordered from.

Huben K1-GK1 Custom loading gate V2. Read a description! | eBay
New improved version_V2 Custom loading gate for Huben K1 and GK1. No 3D printing. Durable and flexible castingmaterial PA (rupture resistant), with two neodymium magnets. Easy to use.
www.ebay.com
I’m asking $30 shipped in the US.
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