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PCP AirgunsReal Backyard Testing.

Honest unboxings, practical modifications, chronograph results, and backyard accuracy tests from an everyday airgun enthusiast.

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Yong Heng PCP Compressor Oil & Filter Change
Builds & Mods

Yong Heng PCP Compressor Oil & Filter Change

October 3, 2026 · 5 min read

After recently using my Yong Heng compressor to fill a 6.8-liter air bottle to around 4,250 PSI, I noticed that the compressor oil had become very dark. That fill took roughly an hour and 20 minutes, with breaks along the way to allow the compressor to cool down. Since I had never changed the oil […]

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From the Backyard

Welcome to Backyard PCP Airguns

September 25, 2026 · 2 min read

Backyard PCP Airguns started with a simple idea: learn more about PCP airguns, test them in a real backyard setting, and share what I discover along the way. I’m not approaching this as someone who claims to know everything about PCP airguns. Part of what makes this interesting is learning as I go—trying different airguns, […]

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