FA is typically known as a fireworks grade black powder. It is an uncoated black powder with grain sizes (which are not the same as FG) are accordingly:
- 2FA: 4.75-1.7 mm
- 4FA: 1.7-.85 mm
- 5FA: .88-.3 mm
FA powder IS NOT THE SAME as FG powder. KNOW WHAT YOU ARE ORDERING, ALL SALES ARE FINAL AND NON-RETURNABLE.
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