If you want to add an Arca rail to your Magpul Pro 700 stock, this adapter makes it easy. The Magpul M-LOK Dovetail Adapter adds an RRS/Arca mounting surface to your rifle. As a result, you can mount to a tripod faster, adjust balance easily, and improve stability.
Many shooters search for a simple way to run tripod support on the Pro 700 chassis. Fortunately, this full-length rail solves that problem. It installs quickly and gives you more control over your rifle setup.

What Is the Magpul Pro 700 Arca Rail?
The full name is the Magpul M-LOK Dovetail Adapter – Pro Stock Full Rail for RRS/ARCA Interface. However, most shooters refer to it as the Magpul Pro 700 Arca rail. It mounts to the bottom of the Pro 700 chassis and provides a full-length Arca-style dovetail.
Once installed, this $74.95 (at time of publication) rail lets you mount tripods, reposition bipods, and adjust rifle balance. In other words, you gain more flexibility without changing your rifle setup.

Why Add an Arca Rail to the Magpul Pro 700?
Precision shooters want stability and control. Therefore, many upgrade their chassis with an Arca rail. A full-length rail allows smooth fore-aft adjustment. Because of this, you can balance the rifle for different shooting positions.
In addition, Arca systems allow fast equipment changes. For example, you can switch between tripod and bipod support in seconds. You can also move accessories without tools. As a result, your setup becomes faster and more flexible.
For competition shooters and hunters, these benefits matter. Better balance improves stability. Faster adjustments also help during timed stages or changing field conditions.

Magpul Arca Rail Features
- Full-length RRS/Arca-compatible dovetail
- M-LOK mounting system
- Precision-machined aluminum construction
- Low-profile design
- Adjustable bipod and tripod positioning
- Designed for the Magpul Pro 700 chassis
The rail adds capability without adding bulk. Because of its low-profile design, it fits cleanly on the rifle.
Installation of the Magpul Pro 700 Arca Rail
Installation is simple. First, attach the adapter to the M-LOK slots using the included hardware. Next, tighten the fasteners evenly. Most shooters can complete the process in minutes.
Once installed, the rail stays locked in place. The mounting system prevents movement under recoil. As a result, the rifle maintains a consistent mounting surface.
Performance on the Range
At the range, the Magpul Pro 700 Arca rail provides more flexibility. Tripod mounting becomes fast and secure. Meanwhile, bipod placement becomes easier to adjust.
Because the rail runs the length of the chassis, you can fine-tune rifle balance. This improves stability in supported positions. It also helps you change positions faster during training or competition.
The rail remains secure under recoil. In addition, it provides a consistent interface for accessories. Overall, it expands what the Pro 700 chassis can do.

Who Should Use the Magpul Pro 700 Arca Rail?
This upgrade works best for shooters who want more control and flexibility. It is especially useful for:
- Precision rifle competitors
- Long-range shooters
- Hunters using tripod support
- Shooters running Arca-compatible accessories
If you already use tripod shooting techniques, this upgrade makes sense. Likewise, it helps anyone who wants better rifle balance.
Final Thoughts
The Magpul Pro 700 Arca rail adds modern mounting capability to the Pro 700 chassis. It installs quickly and improves stability. More importantly, it gives shooters more flexibility when using tripods or bipods.
If you run a Magpul Pro 700 stock, this upgrade expands what your rifle can do. It offers a simple way to improve performance in supported shooting positions.
Check current price and availability here:
Magpul Pro 700 Arca Rail
As always, I’d like to thank Magpul for providing their Magpul Pro 700 Arca rail for my testing and evaluation.