There are a surprising number of Christmas tree ornaments here

ARK1.0 DLC
...3D printable PCC for humans.
.Compatible calibers include .22lr, 9mm, 7.62X25 Tokarev, 10mm, .40S...


ARK1.0
...3D printable PCC for humans.
.Compatible calibers include 9mm, 10mm, .40S&W, & .45ACP.
.Handguard lengths...


ARK2.0
...With the use of a tri-material design, the ARK2.0 was an attempt to reliably...

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