Continuing the work on the Abrams...
I busted out the 3D printer and made some 6.3mm plugs for the mounting holes. I then cut them flush and sanded them to match the bottom contours.
And slapped some paint on it. I didn't care about completely hiding the plugs incase I ever have to remove them to replace a magnet. I think that's as good as the bottom is going to get. I just want to finish this project and the bottom won't be seen very much.
I got the barrel refit to the new metal recoil mechanism. I had to remove some material from the inner bore of the mantlet as this never had a recoil from the 2014 production date. I was going to install one of the Special Ops barrels, but it was going to be a pain to install so the original will have to do. See previous notes...

I also installed the Taigen High Intensity LED. The LED is too big to fit through the metal recoil tube that holds the barrel so I cut the wires and soldered them back together rather than desoldering them from the PCB. I would've had to cut or remove the heatshrink from the PCB so cutting and soldering the wires after they were fed down the barrel was a much more expedient solution.
And the LED slightly protrudes from the end of the barrel. A little bit of Blutac holds it in place.
I replaced my home made bolts holding the spare wheel/sprocket in place with real brass hex head bolts.
I originally had the Armoured prints add-on turret TUSK bits mocked up, but since I ordered a TUSK 1 kit for my other Abrams, I decided that the HL bits were better looking. Been working on the gun shield for the Commander's .50 cal. Inserted some acrylic in the windows and some angle styrene to frame it in.
Also been adding "glass" to the Commander's add on armor. Used some real bolts so that I can remove the Commander's protection to reinsert the cupola "glass" after painting. Had to adjust the size of the window holes so that the thick windows could be fitted correctly.
Installing the "glass" in the loader's add-on protection. Still need to add the mesh behind the loader's glass that is facing forward.
I added the mud holes to the drive sprockets as the sprockets with the retaining rings don't have the mud holes installed. The sprockets are not the most accurate things in the world, but the ones with the rings are more reliable keeping the tracks on.
And finally some paint on the lower hull.
Next...wheel painting, finish the turret pieces, paint the turret, and whatever else I find.
That's all for now...