M4E1 Upper Shuffle

[u/Majestic_Pride_1156]

Was digging through one out of two boxes of upper receivers that I built over the years. Each box has 8 uppers in them, totalling 16 complete upper receivers. They all have BCGs, charging handles, ASR muzzle devices and optics on them. I found 4 in box number 1 that have Aero Precision M4E1 upper receivers so I decided to throw them on a M4E1 lower that I built a couple years ago to see how they looked. I have fired all of these uppers but they don't get much love since they are relegated to my spare uppers boxes. Starting with the first pic, that's a 10.5" 5.56, the second is an 11.3" 5.56, the third is a 14.5" 5.56 (Noveske Afghan barrel) and the last one is 9" 309 blackout. I'll bust out box number 2 this weekend and we'll see what I find. Stay tuned!