1st is my 5.56, Anderson Arms lower, Hardened Arms 7.5" upper, paracord wrapped buffer tube, B-Square mag well grip, ambi safety, plus other bits..

K3II2626 by Martin Unrue, on Flickr

2nd is my PSA 12" 300 Blackout upper, Stag Arms lower, KAK buffer tube, Shockwave brace, magpie K2 grip, etc..

K3II2625 by Martin Unrue, on Flickr

3rd is another 7.5" 5.56 Ground Zero Precision upper, again with an Anderson Lower, Bushnell red dot.

K3II2624 by Martin Unrue, on Flickr

My 4th and final one at this time and my favorite. 7.62x39, 7.5" upper, Anderson lower, all finished in a blue/grey Kryptic camo.

K3II2622 by Martin Unrue, on Flickr

Finally the family portrait:

K3II2633 by Martin Unrue, on Flickr