Spearguns · SKU RGTUN13
1.3m TUNA - 2x 16mm Rub (75cm) - 1.7m Spear 7.5mm D/Notched
Relaunch pricing · through July 2026
Tech specs
- Length
- 1.3m
- Rubber
- 2x 16mm Rub (75cm)
- Spear
- 1.7m Spear 7.5mm D/Notched
- Warranty
- Lifetime on the gun itself (Rob Allen-backed)
- Delivery
- 3 business days nationwide
- Stock
- In stock
Pre-launch — open for pre-orders
First Rob Allen shipment is clearing customs now. Pre-order this SKU — I'll invoice you directly when stock lands (3-day delivery after). Pre-orders get 10% early-bird pricing.
Factory-direct from Rob Allen Durban. Invoice on file. Limited Lifetime Warranty on registered spearguns.
Every Rob Allen speargun sold through us is traceable to the factory order. Grey-market gear cannot claim this.
In the box
- Rob Allen speargun, rigged and ready
- Matched rubber(s) and double-notched spear
- Shooting line and line release
- Original Rob Allen box + warranty card
Best for
Bluewater, pelagics, midwater
Wahoo · Yellowfin tuna · Dogtooth tuna · Sailfish · Large GT
The Tuna rail
Tuna. Rob Allen's bluewater rail, built for big fish.
In Rob's own words
What Rob Allen says about the Tuna Rail.
The all-rounder benchmark
In Rob's 2025 "What speargun is best for hunting fish" video, the Tuna Rail is positioned as the setup most spearos land on after a season or two. Handles small reef fish at short range AND bigger jacks, cobia, and edge species at mid-range. One gun for 90% of the diving most spearos do.
Watch Rob Allen's video →Double 16 mm — within barrel tolerance
The 2x 16 mm rubber spec puts the Tuna Rail at about 70% of the aluminium barrel's flex limit — plenty of power, no deflection. Going bigger (18 mm or triple band) is where you need carbon or a roller muzzle, not a standard Tuna Rail.
Watch Rob Allen's video →7.5 mm spear — the right shaft weight
The Tuna Rail ships with a 7.5 mm plated spring-steel spear. Rob's 2023 velocity tests show 7.5 mm is the mass sweet spot for this band setup — lighter shafts accelerate too fast for accuracy, heavier shafts sacrifice velocity.
Watch Rob Allen's video →Pairs well with
Complete the rig
Common questions
Before you buy
Which length for my diving?
Under 75cm for holes and reef work. 90-100cm is the all-rounder for Thai reefs. 110-130cm for dogtooth, wahoo, and open-water GT. 140cm+ is bluewater only — you will not be able to swing it around structure.
Rail gun vs roller — what is the difference?
Railguns are simpler and more reliable. Rollers hit harder and quieter for the same gun length, but the pulley system adds maintenance. New shooters start on rails.
How long do the rubbers last?
Rob Allen amber rubber in Thailand heat lasts 6-12 months of regular use. Rinse with fresh water after every dive, store out of sunlight. Replacement is cheap and we stock all diameters.
Are these the real Rob Allen guns, or replicas?
Every gun ships direct from the Rob Allen factory in Durban to our warehouse on Koh Samui. Invoice on file with the factory for every order. Listed on the Rob Allen global dealer locator as the only authorised Thailand distributor. Grey-market gear does not carry that trail.
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