Uploaded April 2018 | Updated September 2026, 2 weeks ago

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Update on my #1 video. The O-Ring kit shown is a teaching tool of different size rings for different guns. But please know it has been confirmed that these Danco #11 rings are Nitrile Buna-N and will work.

lowes.com/pd/Danco-200-Pack-Assorted-in-x-Assorted-in-Rubber-Faucet-O-Ring/1000107709

If you want same day fix, and faulty O-Rings are it, consider Danco rings! Next full screen video a sweep on three major seals and total reassembly. Please note, because of concerns raised about Petrol oil on seals, RWS chamber oil is silicone and cannot harm these seals. I have not had problem with pure petrol on these seals.

Don't get me wrong, if you want ONLY parts from Daisy Corp, my PDF video does explain how to get ALL parts from Gamo/Daisy. youtu.be/dqQe1E6Wq6w


NOTE: 30W does not diesel in pump usage.
A Daisy pro on what the wrong oil does to your o-rings: youtu.be/Cz5ROrp4ZG0

Another great video: youtu.be/VgkgLWKMDzY

My favorite shooting doctor: Mi-mind charts on velocity, Beeman Hollow Points, and Charts for 6 pumps.

youtu.be/7Ee93PiJ_OU
youtu.be/RwgJmA6UKCE
youtu.be/u2mY4eRhIa8

NOTE: His 35 work covers your 880 also.