In adopting the M16A2 with its three shot burst, the fully automatic capability of the M16A1 was discarded. I read that the rationale was to control ammunition expenditure. Personally, I dislike the burst feature and feel that it is overly complicated with too many parts. More training would pay greater dividends for our troops than mechanical features.
Likewise the HK MP5 submachineguns has a semi, 2 or 3 shot burst and full automatic in one trigger group. While I do like the ambidextrious feature of the Navy trigger group, I found that with practice it is easy to get a 2 or 3 shot burst from the HK MP5 while it is in the full automatic mode. I also found it to be a nuisance to move the selector the extra distance to get full auto. If you want full auto, you have to skip over the burst modes. Also, there's a lot more parts in the burst trigger groups than the simplier full auto trigger group (more parts for your armourer to stock, inspect and clean).
Discard the burst and go full auto. If you want burst, it's a matter of training and practice. JMHO.
Likewise the HK MP5 submachineguns has a semi, 2 or 3 shot burst and full automatic in one trigger group. While I do like the ambidextrious feature of the Navy trigger group, I found that with practice it is easy to get a 2 or 3 shot burst from the HK MP5 while it is in the full automatic mode. I also found it to be a nuisance to move the selector the extra distance to get full auto. If you want full auto, you have to skip over the burst modes. Also, there's a lot more parts in the burst trigger groups than the simplier full auto trigger group (more parts for your armourer to stock, inspect and clean).
Discard the burst and go full auto. If you want burst, it's a matter of training and practice. JMHO.