In Stock Leofoto GSP-300 M-Lok 300mm Rifle Support Plate
The Leofoto GSP-300 M-Lok 300mm Rifle Support Plate is the longest and most adjustable rail in the GSP series, designed to give you maximum stability and balance control when mounting a rifle to an Arca-compatible tripod. With its 300mm length, it allows a lot of fore-and-aft positioning, making it much easier to properly balance different rifle setups, especially with heavier optics or accessories. It’s CNC-machined from aluminium, hollowed out to reduce weight, and includes safety stops to keep everything locked in place under recoil or movement.
-Nathan (Technical Advisor)
The Leofoto GSP-300 M-Lok 300mm Rifle Support Plate is expertly designed for serious marksmen, this support plate is crafted from high-grade T6061 aluminium, CNC machined for exceptional strength and durability. Its hard-anodised finish ensures resistance to corrosion and wear, making it perfect for outdoor shooting in diverse conditions.
The GSP-300 features a lightweight hollow-out body, reducing overall weight without sacrificing stability. With 8 M-LOK Type Fasteners, it offers quick and secure attachment to M-LOK compatible handguards and accessories, providing a stable shooting platform whether you're at the range or in the field.
Safety is a key feature with 4 strategically placed safety screws limiting accessory movement, ensuring your rifle stays securely mounted even during heavy recoil. The Arca standard base dovetail adds versatility, making it compatible with Arca tripod ball heads for seamless integration with your tripod setup.
- Length 300mm
- Width 38mm
- Weight145g
- M-LOK QR Plates: Equipped with 8 M-LOK Type Fasteners for secure attachment.
- High-Quality Construction: One-piece CNC machined from T6061 aluminium, hard anodized for enhanced durability.
- Lightweight Design: Hollow-out body reduces weight without sacrificing stability.
- Easy Mounting: Quick and simple attachment to M-LOK systems and handguards, ensuring stable shooting on a tripod.
- Secure and Stable: Features 4 safety screws to limit accessory movement and keep the rifle securely in place during rugged use.
- Arca Standard Base Dovetail: Compatible with Arca tripod ball heads for versatile mounting options.
- Dimensions: Length: 300mm, Width: 38mm.
- Lightweight: Weighs only 145g, making it easy to carry without adding significant weight to your setup.
- Leofoto GSP-300 M-Lok 300mm Rifle Support Plate
1. What is the Leofoto GSP-300 used for?
It mounts an M-LOK rifle to an Arca-Swiss tripod system for stable shooting support.
2. How is it different from shorter GSP plates?
It offers much more adjustment range for balancing heavier or differently configured rifles.
3. What material is it made from?
CNC-machined T6061 aluminium with a hard anodised finish.
4. How long is it?
It is 300mm long and about 38mm wide.
5. How heavy is it?
Around 145g thanks to its hollowed-out design.
6. Does it work with Arca tripods?
Yes, it is designed to interface with Arca-style tripod heads.
7. Does it include safety features?
Yes, it uses safety screws to limit movement and improve retention.
8. Is it suitable for heavy rifles?
Yes, it’s built for stable support under recoil and field use.
9. Is it good for hunting or competition?
Yes, it’s commonly used for both precision and field shooting setups.
10. Who is it best suited for?
Shooters who need maximum adjustment and stability for tripod-supported rifle work.
- 10-Year Leofoto Warranty
Delivery costs & estimated arrival
Find your country below for the delivery charge and how long your order should take to reach you. All orders ship with FedEx. Estimates are in working days and exclude weekends and public holidays.
| Country | Up to 2kg | 2kg – 30kg | Estimated delivery | ||
|---|---|---|---|---|---|
| Order under €350 | Order €350 & over | Order under €350 | Order €350 & over | ||
| Austria | €11.95 | €26.95 | €26.95 | €26.95 | 5-7 working days |
| Belgium | €8.95 | €14.95 | €14.95 | €14.95 | 4-6 working days |
| Bulgaria | €11.95 | €31.95 | €31.95 | €31.95 | 7-9 working days |
| Croatia | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Cyprus | €14.95 | €89.95 | €89.95 | €89.95 | Contact us |
| Czechia | €10.95 | €21.95 | €21.95 | €21.95 | 5-7 working days |
| Denmark | €10.95 | €21.95 | €21.95 | €21.95 | 4-6 working days |
| Estonia | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Finland | €11.95 | €26.95 | €26.95 | €26.95 | 5-7 working days |
| France | €10.95 | €21.95 | €21.95 | €21.95 | 4-6 working days |
| Germany | €8.95 | €14.95 | €14.95 | €14.95 | 5-7 working days |
| Greece | €11.95 | €31.95 | €31.95 | €31.95 | 8-10 working days |
| Hungary | €11.95 | €31.95 | €31.95 | €31.95 | 5-7 working days |
| Ireland | €6.95 | €6.95 | €8.95 | €8.95 | 2-4 working days |
| Italy | €10.95 | €21.95 | €21.95 | €21.95 | 5-7 working days |
| Latvia | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Lithuania | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Luxembourg | €11.95 | €31.95 | €31.95 | €31.95 | 5-7 working days |
| Malta | €14.95 | €89.95 | €89.95 | €89.95 | Contact us |
| Monaco | €10.95 | €21.95 | €21.95 | €21.95 | 4-6 working days |
| Poland | €10.95 | €21.95 | €21.95 | €21.95 | 5-7 working days |
| Romania | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Slovakia | €11.95 | €31.95 | €31.95 | €31.95 | 5-7 working days |
| Slovenia | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Spain | €11.95 | €26.95 | €26.95 | €26.95 | 5-7 working days |
| Sweden | €11.95 | €26.95 | €26.95 | €26.95 | 5-7 working days |
Returns & withdrawal
Which option you use depends on why you are sending the item back.
Changed your mind?
You have 14 days from receiving your order to withdraw from your purchase. Use our Withdrawal from Contract form to tell us. It is the quickest way, and we will then email you a free returns label.
If you would rather post the item back yourself to our returns address in Ireland, you pay the postage. Full details are on our Returns page.
Withdrawal from ContractFaulty, damaged or wrong item?
If your item arrived faulty, damaged or not what you ordered, please follow the steps on our Returns page. We cover the cost of returning these items.
Full details of all our return options are on that page.
Returns pageDelivery prices are shown in euros and confirmed at checkout.

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