M4 Carbine Progress

More work done on the M4. Integrated the EOTech holosight and added the entire buffer tube construct. Also added the forward assist key, but it looks off - may redo it. Added a retouched Timney trigger - the hammer spring is in the proper position now. Also retouched the Magpul MIAD grip, dunno if anyone can see the difference haw haw haw.

Just plugging away for now, hopefully will be able to get this up to scratch by the end of October.