Spike's Tactical stripped lower is made to the highest standards. Forged from 7075 T6 aluminum, it supports multi-calibers, black hard coat anodized finish, is low shelf, and RDIAS compatible. This model has a Calico Jack logo. NOTE: Requires a lower parts kit, buffer & stock of your choosing to complete.
| Manufacturer | Spike's Tactical |
| Model | ST15 CALICO JACK |
| Caliber | Multi |
| Type | Receiver |
| Action | Semi-Auto |
| Color | Black |