Wiser Precision BA-7 Sparrow bino adapter.

[TheAri]

Most of the twisting loose is improper installation of the strap. The broken strap above looks like it had contact with a rough rock.

Contact with a rock? No. They went into my bino harness after using it once in the field, then into a new SG harness, and when I pulled them out this season to go over gear, it had snapped while in the harness while not being used.

 

[grainhog]

I took my sparrow off my razor hds for the first time since installing, to send them into vortex for conditioning. It was easier to get on the second time, because the loop was already sized and I knew how the tightening/set screw mechanism worked. I love the thing. I can get it so tight I'm almost worried about indenting the barrel.

Mine came loose once when my tripod tipped over from 2ish feet in strong wind. It sucked, but I don't consider it a defect. If anything it might have had a quick release effect on impact, helping to prevent damage to the binos. I will pack the Allen keys on long trips now.