12 Things Gunsmiths Don't Want You to Know About WD-40 (#3 Saves $150)

Three guns sitting on the bench right now, total repair bill pushing $600. Two triggers that won't reset, one bore so pitted the barrel needs replacement. 📖 The book I mention in the video — The Gunsmith's Buyer's Manual: https://ivan.myreads.store But WD-40 cuts through baked-on carbon faster than any dedicated gun solvent, frees rust-frozen takedown pins in under an hour (saving $120 to $180 in extraction fees), and flushes extractors in place without a full disassembly.The white patch test shows whether you've been making that storage mistake without knowing it, and the carbon ring on your bolt face is the early-warning system for a fouled gas tube.