Originally Posted by
DakarM
what i read said the burst trigger group was a lot more prone to failure than the auto trigger group. they also sited that with proper training a full auto works jus as well as burst (trigger discipline)
i'm trying to remember where I read that but I can't remember.. it was a military news site of some sort...
it's possible that they said they are looking into going back to full auto, but haven't done it yet or it got shot down (sort of speak ehhe)
The 3 burst mechanism isn't exactly a true 3 burst mechanism, like the MP5. The ratcheting mechanism inside causes variations in trigger pull that affect accuracy.
I also thought part of the reason was to prevent fouling of the breech since the gas directly impinges on the bolt. I heard the M4 especially is prone to fouling since it's cyclic rate is significantly higher than the M16's.