There's quite a few things:
Indirect fire grenade launcher,
Removable pistol incorporated in the pistol grip,
Manufactured from weight-saving plastic.
I believe there were trials in the 1960s but there were durability and range issues.
Some already have a rail on the top cover, which is great, depending on the length and/or position of sight mounted, I'm sure you can think of some issues this may present. This would have been 2013 on a HK built gun I was surprised to see, never knew they built them.
The Minimi was originally 7,62x51 for which there were not takers hence the change to 5,56. So perhaps the 5,56 gun should be the micromi. The original gun had an adjustable gas regulator unlike the current version.https://www.arrse.co.uk/community/threads/7-62mm-minimi-lmg-for-uk.164282/
They’re already using ‘Maximi’ In some units:
MoD Orders 7.62mm MINIMI - Think Defence
Australia uses it as well:
Maximi | Australian Army
The HK one I mentioned had a Viper (I think) attached, slightly smaller than a CWS but thermal and was brilliant for seeing 'stuff' in the dark out to a considerable distance from the Sanger. IIRC it had a record function too, I'm sure someone will tell me what that was used for, other than a stray dog having a dump...Maybe a CCTV sighting system which, coupled with a fold-down butt plate, would allow the firer to operate in a head-down position. This could be further improved by an ability to record and underlay the view at last light to assist with target indication and aiming in darkness.
We have loads of HK GPMG's on board at the minute, and I have seen the Picatinny railed top covers a couple of times. I think there is a specific NSN for them but I'm not sure what it is.Some already have a rail on the top cover, which is great, depending on the length and/or position of sight mounted, I'm sure you can think of some issues this may present. This would have been 2013 on a HK built gun I was surprised to see, never knew they built them.
Try firing it at a target 800m away. Through the issued iron sights. If it's a bit hazy, or the light's bad. Then ask yourself why the No.2 on the Gun used to carry binoculars... Now, take a group of average firers (say, the Divisional SAAM). Put them through the gun match, on a beautifully prepared range, where the target is as obvious and visible as possible, and watch how often they're able to put holes in a triple fig.11 at 600yds, by noting how often you see the flag waving to indicate "no hits scored from ten rounds fired", either there or at 500yds.Are optics required on a 'beaten zone' weapon? The GPMG is not design to be accurate, it is designed to spread angry wasps in a cone out to 800m.