https://www.milsurps.com/images/impo...93A87916-1.jpg
https://www.milsurps.com/images/impo...3/01/M17-1.jpg
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I'd think this model would be far better...our used to come apart sometimes after launching. I'd think these would too, the other type.
The M17 would detonate on impact vs. the M1 Grenade Adapter was a timed fuse. The M17 will not explode if it lands on sand, water, or mud
M17 rifle grenade - Wikipedia
I wondered how that would work, thought it might start the fuze burning when it fired and had five seconds to detonation...or five seconds after impact. But not detonating if a soft landing...not so good.
https://www.milsurps.com/images/impo...6232jpeg-1.jpg
Similar to the M9 Rifle Grenade a spring-loaded pin holds back the firing pin (C) until impact
Yes, that one I knew about. Those eventually took over and worked fine.