Some people have had cracked TM Glock slides with propane, but replacement metal slides and springs sets are easily available and run between 100-150$. Because of the square shape, the Glock slide is not as impact resistant as the other TM plastic slides. With that said, they will usually last a while, its rare that they crack in the first few games. Some people have been using them with plastic slides for years.
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Québec province's master age verification representative.