Rob Allen D Shackle Muzzle Eye - Type U video=J2H8pLMhUFE and yoke setups

and yoke setups

There's plenty of research to suggest it works and they've got a tonne of videos suggesting that - so if you believe in science and the scientific method then you know these work

Penetrator Fin’s proprietary rubber water rail has also been specially made to suit the profile of the Penetrator Range

Patented anti-fog system

Re-useable mouthpiece clip makes changing mouthpieces in the field easy

Rob Allen D Shackle Muzzle Eye - Type U video=J2H8pLMhUFE and yoke setupsMade out of Stainless Steel, the Muzzle Eye is designed to help you quick and easily make the conversion. Fasten to your speargun using the handy screw type design on location.