Extras and spare/replacement parts for the Scorpion MK5 FT hook system.
Maestro Design’s Scorpion is a fully modular sytem and most parts can be replaced or parts added if needed. All the available parts are listed here. If you have an old design MK4 Scorpion then start searching spare parts here. Nevertheless, most of the the MK5 parts are compatible with the old system as follows:
Fully compatible with MK4:
Butt Pad Kit (adds two pads to the centre post)
Middle Extension Kit (adds 10-20-30 mm to the centre post)
Offset Plates (0-25mm or 10-50mm) to add an offset tot he whole hook
Does work with MK4, but looks a bit different or certain features are limited:
Wing Base, Standard
Wing Base, Extended (adds 25mm to the upper wing, recommended for Butt Pad Kit)
Extra Link 44mm
Wing, Standard
Wing, Extended HFT 2.25″
FolloWing Articulated Wing
T-Rail Limiters (with a 3-way limiter on both ends) 130mm or 150mm
if you want to use your hook on another rifle, don’t forget to order a base plate, too!
NOT compatible with MK4:
Long Hook, Stainless 152mm
Long Hook, Nylon 137 mm
Short Hook, Nylon 97 mm
HFT 2.25″ Hook, Nylon 57 mm
Some parts are suitable for both right and left handed hooks. but some parts have R/H and L/H versions, please double check that you have selected the appropriate one.
These parts can be bought separately, so you can buy a basic hook and then get the needed extras later, when you already know from practice what you need exactly.
Fully compatible with MK4:
Butt Pad Kit (adds two pads to the centre post)
Middle Extension Kit (adds 10-20-30 mm to the centre post)
Offset Plates (0-25mm or 10-50mm) to add an offset tot he whole hook
Does work with MK4, but looks a bit different or certain features are limited:
Wing Base, Standard
Wing Base, Extended (adds 25mm to the upper wing, recommended for Butt Pad Kit)
Extra Link 44mm
Wing, Standard
Wing, Extended HFT 2.25″
FolloWing Articulated Wing
T-Rail Limiters (with a 3-way limiter on both ends) 130mm or 150mm
if you want to use your hook on another rifle, don’t forget to order a base plate, too!
NOT compatible with MK4:
Long Hook, Stainless 152mm
Long Hook, Nylon 137 mm
Short Hook, Nylon 97 mm
HFT 2.25″ Hook, Nylon 57 mm
Additional information
Weight
360 g
Dimensions
200 × 46 × 245 mm
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Fully adjustable Field Target hook, with much more versatility than the usual Gemini clones. Everything can be adjusted even in the shooting position, without disassembling the hook. Modular system that can be upgraded later if needed. Massive construction, without any flex and slip, a lightweight and versatile alternative to the traditional metal hooks.
I added a lot of improvements to my professional FT hook design, creating the MK5 (2023) version that will replace the discontinued MK4 (2016-2022) version. Some parts are backwards compatible with the MK4 so the two systems can be combined if you don’t mind some visual differences but I’d suggest not to mix the two systems.
Features on the new MK5 design (see detailed listing with photos and dimensions at the bottom of the web page):
Engraved marks for all adjustments – now you can record and reproduce your settings any time
New 152mm stainless steel hook, 137mm and 97mm Nylon FT-hooks
HFT-compatible 2.25” (57mm) Nylon hook
Extended upper wing base option, for better integration with the Butt Pad Kit or to add half a link length to the upper wing
Slim hook holder links – don’t protrude that much as the old design
Rounded link elements – gives a smoother fit when the links are twisted
Magnifier for the clicks turret, fully adjustable, with a lightweight and unbreakable 3x mag Fresnel lens. Visible lens size 28×17 mm. Fits 1″ / 30mm / 34mm / 36mm / 40mm scope tubes. It can happen that you’ll need a stronger or weaker lens (depends on your eyesight), the frame can hold any flat lens up to 0.8 mm thickness or an acrylic lens that is cut to the right shape.
Check out its brother, too: EagleEye Parallax Magnifier. Please note that there is a new design that may slightly differ from the pictures.
The magnifiers can be ordered also in ‘Target shooter’ version with two magnifying windows (for elevation and windage turret)
New updated ring design is available. The same function but a better looking ring, scope tube protection, bolt/nut secured against falling out.
Adjustable angle scope pointer (10°–90° to the scope tube, two positions). Fits 1″ / 30mm / 34mm / 36mm / 40mm scope tubes, and needs only 10 mm space on the tube. The top is 11.5 mm above the tube in vertical pin position..
For parallax wheels and click turrets.
With stainless steel screws and steel pin. If you need a longer or shaped pin, you can simply replace the original pin with any <1mm wire.
New updated ring design is available. The same function but a better looking ring, scope tube protection, bolt/nut secured against falling out.
The 30/34mm new design pointers are available in a ‘Target’ version i.e. with two pointers, one for the elevation turret and another on on the side for the windage turret.
The official WFTF Target Checker (designed by Brian Samson, public domain, printed under the Creative Commons CC0 licence).
“The device is designed to give an equivalent impact force to an airgun pellet hitting the paddle of a target at 5.5 ft/lbs energy (7 Joules). To mimic the effect of a target being shot at with a WFTF legal air rifle at 55 yards.”
Fully assembled and ready to use. High quality 3D-printed PLA/PHA in black and orange colours, stainless steel bolts/nuts.
MK2 2018– Brian’s original design
MK3 2019 – Smaller improvements like easily adjustable depth gauge, wrist strap, killzone diameter checkers etc., see below for more details.
MK4 2020 – Further improvements to resolve all issues of the original design. Re-designed internal parts, spring tension can be fine-tuned with a hex key, free travel length of the probe doubled.
MK4.1 2023 – Further improvements, small modifications, safer trigger etc.
MK4.2 2024 – Morer improvements, re-designed trigger, spring guide etc.
Available colours: Dutch Orange, Ultra Marine Blue, Traffic Red, Leaf Green, Intense Green, Fluorescent Pink, Signal Yellow, Shining Silver and Sky Blue, all with black sides.
Detailed instructions manual (by Scott Hull): download PDF
£49.99–£79.99Price range: £49.99 through £79.99Select options
This product has multiple variants. The options may be chosen on the product page
Replacement elements for the FWB P70 Alutec stock, giving new features to the rifle:
Fully adjustable offset grip
Elevating the rear part by 50 mm
Saving 250 g weight
Also the original grip can be used (but without the offset feature). The parts are made of laser sintered Nylon, lightweight but very strong, I personally have tested this kit on my rifle. The new design elevates the cheek piece part so it fits better to high FT scopes. The grip is fully adjustable, and the offset can be set between 7.5 and 22.5 mm.
Right handed, used but in “as new” condition, with some very small usage marks. Can be bought with a ball grip and/or with a grey anatomic grip.
In order to use this kit, you have to cut your original stock, and drill 3 new holes onto it, I’ll attach the technical drawings of all these modifications of course.
I can offer a full FWB collection, please contact me for a discounted price if you are interested in the following products together:
Precision offset trigger with wide range of adjustments, for the following rifles:
Anschütz
AirArms Pro-Target / EV-2 / FTP-900
Feinwerkbau (all models)
Hämmerli AR-20
Steyr LG-100/110
Thomas
Walther (all models)
The trigger can be ordered with a wide variety of different trigger blades on a bundle price (they can be ordered later on full price here: FlexiPoint spare blades).
In most cases, it’s recommended to use the genuine FlexiPoint Trigger, because it connects more steady to the rifle action, using both trigger rods (German made rifles) or holding the rod by two grub screws (AirArms). But if you’ve got a custom stock that is too tight for the FlexiPoint trigger, a possible solution is to use a PinPoint trigger with this offset blade. For this option, simply choose PinPoint in ‘Adapter type’ drop-down menu.
If you’re after a simpler trigger which is in the centre or has only a small offset, please have a look at PinPoint v.2 Trigger, too.
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