REPP Rail‑Elevator‑Pivot‑Pro

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DIY — fit the P‑TAS
to your own ATV

The P‑TAS is designed to fit a standard ATV cargo rack. Fitting it to anything else is a DIY job, done by the owner of the product. Here is exactly what that means, and the seven stages the build runs through.

01 The short version

All the parts will be there. The mounting points you put on yourself.

That is the whole deal, and we would rather you knew it now than after the crate turns up.

The P‑TAS ships complete. Base frame, stainless steel plated rails, linear bearings, alloy plate, sliding carriage, swivel ball head, quick-release receiver, the padded front rifle clamp, the Kolpin Rhino Grip Pro stock rest, the 12-volt powered electric elevator, the loom, the two push-button switches and the two 6-inch marine-grade suction mounts. Every part of the product is in the box.

What is not in the box is a set of mounting points pre-drilled for your exact machine. There are too many racks, in too many shapes, on too many bikes, for that to be honest. Those points you put on yourself, positioned where they suit your rack.

If your machine has a standard ATV cargo rack, that is a straightforward bolt-up. If it does not, it is a DIY fit — still very doable, but it is your work and your measurements.

Two things to know before you start: the wiring has to be connected by you, buttons to the elevator and loom to the battery; and the rig becomes right- or left-handed while you are building it, not afterwards. The seven build stages are below.

The P-TAS prototype with the carriage raised, showing the base frame, the scissor lift, the alloy plate and the stainless steel plated rails The stack — frame, lift, alloy plate, rails

02 The split

What we supply, and what you supply

Nothing hidden. This is the line between the two.

In the crate — supplied by REPP
Base framePowder-coated high-tensile steel
RailsTwin stainless steel plated — 1000 mm and 800 mm
BearingsTwo double-width rollers (Mark 2) — not four
Alloy plate & carriagePlate sits above the scissor lift, carriage above that
Elevator12-volt motorised scissor lift and linear actuator
ControlLoom plus two self-centering push-button switches
HeadSwivel ball head with quick-release receiver
ClampsPadded front rifle clamp, plus the Kolpin Rhino Grip Pro lockable butt-stock rest
AccessoryTwo 6-inch marine-grade suction mounts
HardwareCountersunk screws, self-tapper bolts, end stop caps
On the day — supplied by you
HandednessChosen at build stage 03 — right or left
Mounting pointsSet and fitted to suit your own rack
Rack fixingsHard bolt-down or U-bolts, in 3–4 places
MeasurementRack width, tube size and clear deck length
ToolsSpanners, drill and bits, measure, marker, thread lock
WiringButtons to the elevator, loom to the battery
Power tapA 12V feed off the vehicle, fused
Switch runRouting the switch lead up to the handlebars
Chassis workNone — U-bolt holes go in the elevator's own base frame
Clearance checkFull deployment and full retraction, nothing fouling
Final torqueCheck and re-check after the first few rides

To be plain about the one thing people ask: no cutting or drilling of the chassis is required or intended. Drilling, where it is needed at all, is into your rack or your own mounting plate — never the frame of the machine.

03 The build

How it goes together

Seven stages, in order. Read stage 03 before you pick up a screwdriver — that is where the rig becomes right- or left-handed.

01

Elevator and controls

The platform elevator lift arrives together with the up/down handlebar-mounted control buttons.

Wiring needs to be connected The buttons wire to the elevator, and the loom then has to be connected to the battery or your power source. Nothing moves until that is done.
02

Rollers onto the alloy plate

Fix the rollers to the square alloy plate using the supplied countersunk screws.

Only two rollers are needed. The Mark 2 prototype runs two wider, double-width bearings in place of the four the Mark 1 used — one on each corner. If you have seen the earlier four-corner arrangement, this supersedes it.

03

Rails on — and this is where you choose your hand

The two linear line rails, 1000 mm and 800 mm, line up perfectly on the alloy base platform. This is the stage where you decide whether the rig is set up for a right-handed or a left-handed shooter.

  • The 1000 mm rail always sits closest to the shooter and the handlebars, whichever hand you set up for.
  • The alloy plate has a tapered end. Taper on the right is the right-handed setup.
  • For a left-hander, flip the alloy plate upside down so the tapered end is now on the left.
  • Either way the 1000 mm rail leaves a 200 mm overhang — on the left or on the right depending on the setup — for accessories to attach to.
04

Kolpin stock rest on your side

Mount the Kolpin butt/stock rest on the side that matches the hand you set up in stage 03: right side for a right-handed shooter, left side for a left-handed shooter.

05

Mount the ball head, slide it on, then cap the ends

This is where you mount the swivel ball head on the alloy plate. The double roller bearings are already attached to that plate, so with the ball head fitted the whole plate now slides straight onto the two rails. Run it through and check the slide is smooth and the operation is clean.

Then cap the ends of the rails with the end stop caps, tightened hard and firm.

End stop caps go on one side only The Kolpin stock holder you fitted in stage 04 sits on the other side and stops the rollers going any further — the Kolpin becomes the stopper at that end of the P‑TAS rails.
06

Mount the elevator, then the platform on top

Prepare the area and mark out where the elevator will sit on your front rack or rail. Then decide how it fastens down:

  • a hard bolt-down straight to the rack, or
  • U-bolts — which means drilling the base frame of the elevator and bringing the U-bolts up through those holes, clamping the rail of the quad between them.

Either way, fasten it in at least three to four places. You are after no movement at all.

With that solid, the alloy plate — rails, sliders and Kolpin clamp all in their set-up position — bolts to the top of the elevator using the supplied self-tapper style bolts. Any hole along the line of bolts that holds the rail to the alloy plate can be used, as long as it lines up with the elevator: two on the front side of the 800 mm rail, and two on the handlebar side of the 1000 mm rail. Space them as far apart along the rail as you can — that is what makes the mount stable and firm.

The sliding alloy platform clears those bolts, so the glide is not hindered at all.

07

Test the lift, then load the rifle

Check the electric up/down button operation through full deployment and full retraction before a rifle goes anywhere near it.

Then fit your preferred mounting on the ball mount — the Picatinny rail, the Arca rail, or the padded rifle clamp. Lock the front end of the rifle into the ball mount and stow the stock/butt into the Kolpin gun clamp.

Always strap the stock down Run the tie-down rubber strap over the stock once it is in position. That is what stops the rifle slipping out and being damaged — it keeps everyone safe during a chase, or simply transporting the rifle back to camp.

04 Not a quad

Roof and bonnet mounting

The P‑TAS is primarily bolted to a bike, but it is not limited to a quad.

Every unit ships with two 6-inch marine-grade suction mounts. They attach into the slots, and that is what makes the P‑TAS capable of mounting on top of a vehicle roof to shoot from, or on a bonnet for target practice and zeroing a rifle scope — a ute, a wagon, a side-by-side with a hard top — without a permanent fit.

The same rule applies as everywhere else on this page: the mounts are supplied, and where they go is your call. Check the surface is clean, flat and solid enough to carry the unit plus the rifle under recoil before you rely on it, and never leave it suction-mounted for highway transit.

Order the P‑TAS
The two included 6-inch marine-grade suction mounts, each with a red pump handle and a locking lever The two included 6-inch suction mounts

05 Before you order

Three things worth being sure of

How you will mount it

A standard ATV cargo rack is the designed fit. Work out in advance whether yours takes a hard bolt-down or needs U-bolts through the elevator's base frame, in three to four places.

Bolt-down or U-bolts

What your rack will carry

The scissor lift is rated to 80 kg, but your rack has its own rating. Check the vehicle's figure and work to the lower of the two.

80 kg on the lift

Where the wiring runs

The wiring is connected by you. Two self-centering push buttons need a home on the bars within thumb reach, and the loom needs a fused 12 volt feed off the battery. Work out that run in advance.

You connect the wiring

Anything you are not sure about, send it through before you order.

Everything in the crate.
The fit is yours.

$1,800 AUD, GST included, freight calculated at checkout. Expected delivery by 31 January 2027.