I don't have this feeling with my FAMAS, maybe because I often made it fall and it survive...The L85 just has something off with its balance and feel to me. Like if I drop it, it will break the floor and itself.
Same thing with the F2000. My first thought on picking one up was "if I drop this thing, it will break into a million pieces".
On the topic of the gun, I would first decide which cartridge to use, then the gun. I think that it's time to switch to a more polyvalent 6.5 grendel or something like this.
For pistol round, .45 is overrated:
http://nolo84.deviantart.com/journal/The-Myth-of-The-45-ACP-or-45-Sucks-336915263
Pistol user should practice more and learn to aim in stress situation, then even a .38 is good.