The Rob Allen Tuna Aluminium Railgun is the heavy hitter of the range.

With more power and punch any game fish in its sights is in trouble.

With a limited Lifetime warranty on core components you know you’ve got support when it matters. Rob Allen has huge confidence in his line of products and he wants to ensure you do to.

Specs:

• 1.45 MM Thick Aviation Grade Aluminium Barrel
• 7.5 MM Double Notch, Single Barb - Tri-Cut Alloy Spring Steel Shaft
• 2 x 16MM DIP Processed and Rob Allen Branded Rubbers

• Vecta 2 Handle (PA6 30% GS glass filled Polyamide)
• Heavy-duty monofilament – 2mm thick with 400lb breaking strain
• Low profile muzzle (For 2 Rubbers)
• Muzzle bungee with a quick release clip

About the speargun:

If power, accuracy and strength are as important to you as they are to Spearfishing in Thailand, then here is your gun. Tread on them, fall on them, throw them in your car after a hard day diving and they just keep on performing season after season.

What makes this gun so fantastic though is not the battle tank-like ruggedness, but the great accuracy of the integrated rail that guides the spear when shot.  Perfectly in line with the firing mechanism and the low profile muzzle, this railgun delivers one of the smoothest shooting systems the industry has seen. No other gun manufacturer comes close to the number of world records these guns currently hold. Don’t believe us? Check out the IUSA and see for yourself 🙂

Handle:

The “Tuna” Model Speargun has the latest Vecta handle and mechanism.

The entire handle and mechanism cassette is made of glass reinforced polyamide giving it incredible strength.

The handle has an integrated reel bracket so the Rob Allen Vecta reel can be mounted without needing any screws and is shaped to prevent any chance of the shooting line catching when a reel is not fitted.

Complete Vecta handle, includes mechanism and float-line clip. The Rob Allen Vecta Mechanism is moulded from PA6 30% GS glass filled Polyamide to handle the power needed to hunt large blue-water fish. External shrouds and an internal barrel spigot increase strength at the critical barrel/mechanism interface. Apart from safety considerations, any flex in this area reduces accuracy.

Internal webs at several places in the mechanism are designed to spread loading away from high stress areas.

All load bearing pivot pins as well as the sear are manufactured from solid stainless steel. The rubber over-grip is clamped in place by the cheek-plates to prevent twist on firing. The spring loaded line release cam returns to position after firing for ease of loading.

Barrel:

The “Tuna” speargun features an aircraft grade aluminium barrel with a full length extruded rail. Because the rail is actually extruded it adds huge stiffness and strength helping to make Rob Allen guns the most accurate in the world.

Vecta Muzzle:

Our guns are fitted with the new Rob Allen Low-Profile Vecta muzzle.  The low-profile of this latest muzzle makes for extremely low drag through the water and the very clear sight pattern along the spear usually reserved for open-muzzle designs.  The muzzle accommodates two rubbers that are clipped into place preventing 'muzzle flip' when fired.  The shape of the muzzle guides the rubber in a straight line, parallel with the barrel and spear.

Like the handle the Vecta muzzle is constructed of bomb proof glass reinforced polyamide and the critical muzzle-barrel interface consists of an extra long internal spigot with external shrouds.

The muzzle hole attachment point has been shaped to accept an optional stainless steel shackle recommended when a reel has been fitted.

Rubber Bands:

All Rob Allen rubber is now manufactured by DIP processing. While being more expensive, this enables fewer additives to be used, which enhances the performance on a gun. The colored outer layer increases the protection from usage and the environment, and the amber inner core is made purer for increased performance Spearfishing in Thailand