I have completed my ideal 10mm, love it: 1. Glock 20 SF 2. GripReductions.com grip reduction - smooth carry with mag well 3. TFO night sights - (gr/yellow) 4. GlockMeister tungsten captured guide rod with ISMI 22lb spring 5. Glockworx Zev-Fulcrum trigger kit, with firing pin safety 6. Glockworx trigger spring 7. Stock firing pin / striker and spring 8. ISMI +10% mag springs 9. SureFire X400 light/laser 10. Titanium pin set (why not?) How can I get rid of the significant mag rattle? My other (five) Glocks don't rattle like this, but they are not 10mm either. I would prefer not to download, or tell my friends it's a feature. Please help, desperate for a practical and reliable solution. This is only thing keeping me from true, personal, awe-inspiring Glock perfection. I am "this close".