This is a Mesa Tactical Side Saddle, model 90150.
SureShell carriers are milled from 6061-T6 aircraft aluminum" then bead blasted and mil-spec hard coat anodized for a rugged non-glare finish.
Features:
SureShell Carrier
Fits Urbino Cheek Riser (Right Side)
6-Shell
12 Gauge
6061-T6 Aluminum