Not unless you have a milling machine - Centennial Defense Systems Extended Mag Release w/2.5lb Spring for Gen 1-3

These bound-up in the left handle extractor slot in my reprise Gen 1 Glock 17L. I was going to send them back, but could not readily find any with the reduced power spring. Soooo, after checking dimension with my $400 Mitutoyo (spelling?) micrometer, I found that the offender was the raised flat on the inside by the striated thumb release. Using a 1/2 inch end mill, I removed a few thousands of an inch and it fit fine.