Hi, This is my favorite type 10. Ive taken a bit of liberty with the translation of the manual page, as it appeared to refer to it a projectile with air attachment. Looking at the drawing Im confident that it is a practice grenade designed for hand use only. The adapter screws into a standard T10 body. The use of spotting trainers appears to have disappeared with the introduction of the T91. I look forward to a more expert translation of the schematic. Cheers
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