Tests were conducted recently by the Ordnance Department at Aberdeen Proving Ground to compare the flash and smoke characteristics of standard American and German ammunition- small arms and artillery of approximately the same summarized in this booklet. In some cases the German weapons show less flash due to the use of flash hiders. Flash hiders are now being furnished for some American weapons, but were not used in these tests. Developments already completed or in process will reduce further the flash of American weapons.

N5590.12 Approved for public release; distribution is unlimited.