Rob Allen
The Rob Allen roller is unlike conventional muzzled spearguns in which the rubber bands take up only 30-40 per cent of the barrel length. The roller muzzles allow you to utilize the full length of the barrel and the rubbers are stretched and loaded all the way to the end of the barrel. Essentially, the roller gets its extra power from the longer band pull, instead of more bands. Likewise, the pre-tensioned rubbers underneath allow for more power and strength right up to the end of the stroke. Resulting in more speed and momentum. This increase in power of the Rob Allen roller muzzle allows for more penetration on the target and more accuracy and range of your shot. Another advantage of roller muzzle guns is the way they have less recall due to the roller counteracting the rubber releasing both ways.
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