why the difference?

Stoney Creek - Purpose Built Shooting Clothing
  1. javelin bipod adapters

    Have just bought javelin bipod with 2 gunsmith adapters. The adapters are different in that the older one is essentially round in section while the newer version has a tang - Why the difference? Is the tang designed to assist the orientation of the adapter when fitting it or is there another or...
Leica Amplus 6