Markbo: Honestly? I LIKE the M4. As in, its nice. Nicer than having to lug around a musket (thats what we, in the airborne community, call an M16, as we don't jump with them, too huge).
Its accurate, adaptable, customizable, and all that. The M4 with the rail system, flat top, and short barrel is nice, but still has its flaws.
Flaws in my (Airborne) opinion consist of:
1. Bad ballistics with short barrel, but not exactly fixable at our level.
2. VERY tight spaces and tolerances. A jam in a chamber that I can barely stick my PINKY in is a problem in a firefight.
3. Partition of the rail between the receiver and the barrel. Makes mounting larger scale optics (rifle scopes, night vision, laser illuminators, etc) tricky.
4. The sheer amount of CARBON in the chamber, along with the fine dust that you cannot avoid, after a trip to the range.
A piston system, in theory, would do wonders to fix problems 3 and 4. The government is afraid of change with regards to our outfitting. Yet, we seem to be a VERY adaptable fighting force, considering the environment here. In the past 18 years we've successfully transferred into the digital age, along with adopting SEVERAL new weapons systems along the way.
M249? M240B? MK-19? AT-4?
We've, for the most part, all received training in some shape or form with regards to these amazing weapon systems. Why would the change to a piston-operated system, or another weapon system that gives us the best chance on the battlefield be any different?
The Army has room to throw money at R&D for any untold number of projects, and adopting programs from there. Why do they reject amazing designs when it is the main weapon of the basic soldier they are considering?
For instance. Our new uniforms. ACU's. They SUCK. Crotches are weak. They stain easy. Velcro everything. Don't blend in with ****, besides maybe the urban areas...maybe. They are currently spending around $11 million to repair the crotch seams in the currently issued uniforms...I don't get it.
But once again, I am a Private. So I don't know anything