SIG Sauer MCX, MPX Low Profile Picatinny Folding Stock Assembly Review

First Thoughts on the SIG Sauer MCX, MPX Low Profile Picatinny Folding Stock Assembly

The SIG Sauer MCX, MPX Low Profile Picatinny Folding Stock Assembly is a significant upgrade for anyone looking to enhance the compactness and maneuverability of their MCX or MPX platform. SIG Sauer is a name synonymous with quality and innovation, and this stock assembly promises to deliver on both fronts. The assembly aims to maintain solid performance while drastically reducing the weapon’s overall length when folded.

I’ve always prioritized versatility in my firearms, especially for tactical applications and confined spaces. Traditional stocks often make storage and transport cumbersome, and this folding stock appeared to be an elegant solution. My primary goal was to find a durable, reliable, and space-saving stock option without compromising on cheek weld or shooting stability.

Upon unboxing, the first thing I noticed was the robust build quality. The aluminum construction felt incredibly solid, and the included Magpul SL-K stock was a familiar and welcome sight. This assembly felt much more premium compared to some polymer-based folding mechanisms I’ve used in the past, which often felt flimsy and unreliable.

I considered other folding stock options, including some from aftermarket manufacturers. However, I ultimately chose the SIG Sauer assembly because of my confidence in their engineering and the guarantee of seamless compatibility with my MCX. My initial impression was one of excitement – this felt like a serious piece of kit that could significantly improve the practicality of my rifle.

Real-World Testing: Putting SIG Sauer MCX, MPX Low Profile Picatinny Folding Stock Assembly to the Test

First Use Experience

I tested the SIG Sauer MCX, MPX Low Profile Picatinny Folding Stock Assembly extensively at my local shooting range. The range offered both static and dynamic shooting scenarios, providing a well-rounded testing environment. My focus was on assessing the stock’s stability, comfort, and ease of deployment in various shooting positions.

The folding mechanism proved incredibly smooth and reliable. It locked securely in both the folded and extended positions. Shooting with the stock in the extended position felt remarkably similar to a fixed stock, providing excellent cheek weld and recoil absorption. I even ran some drills in the rain, and the Magpul SL-K stock maintained a solid grip, even when wet.

One initial surprise was how little the balance of the rifle changed when the stock was folded. I anticipated a significant shift in weight distribution, but it remained manageable and didn’t negatively impact handling.

Extended Use & Reliability

After several months of regular use, the SIG Sauer MCX, MPX Low Profile Picatinny Folding Stock Assembly has proven to be exceptionally durable. There are no signs of wear or loosening of the folding mechanism, even after repeated deployment and folding. The finish has also held up well, with minimal scratches or blemishes.

Maintenance is straightforward. A quick wipe down with a lightly oiled cloth is sufficient to keep the assembly in top condition. I’ve disassembled it a few times for more thorough cleaning, and the process is simple and intuitive.

Compared to my previous experiences with aftermarket stocks, this SIG Sauer assembly far exceeds expectations. It’s significantly more robust, reliable, and comfortable, making it a worthwhile investment.

Breaking Down the Features of SIG Sauer MCX, MPX Low Profile Picatinny Folding Stock Assembly

Specifications

• SIG Sauer Item Number: 8900516. This is crucial for ensuring you’re ordering the correct product and verifying compatibility with your specific MCX or MPX model.

• Folding Stock Assembly. It allows the rifle to be significantly more compact for storage and transport, a key advantage in tactical situations or when space is limited.

• Aluminum Construction. Provides exceptional strength and durability while keeping the overall weight reasonable, ensuring long-lasting performance under demanding conditions.

• Picatinny Rail Attachment. This universal attachment method ensures compatibility with any MCX or MPX variant equipped with a 1913 Picatinny rail at the rear.

• Magpul SL-K Stock. This stock offers a comfortable cheek weld and excellent recoil management, contributing to improved accuracy and shooting comfort.

• Black. Provides a low-profile, tactical appearance that blends seamlessly with most firearms finishes.

Performance & Functionality

The SIG Sauer MCX, MPX Low Profile Picatinny Folding Stock Assembly performs exceptionally well. It provides a stable and comfortable shooting platform while significantly reducing the overall length of the firearm when folded. The locking mechanism is robust and ensures the stock remains securely in place during firing.

The primary strength lies in its simplicity and reliability. The folding mechanism is easy to operate, and the Magpul SL-K stock provides a comfortable and consistent cheek weld. One area for potential improvement would be the addition of a QD sling swivel attachment point directly on the folding mechanism.

The assembly meets and exceeds my expectations. It delivers on its promise of providing a durable, reliable, and space-saving stock option without compromising on shooting performance.

Design & Ergonomics

The build quality is excellent. The aluminum construction feels solid and well-machined, and the Magpul SL-K stock is a proven design. The weight is well-balanced, and the stock is comfortable to shoulder.

The assembly is user-friendly with no learning curve. Installation is simple and requires no special tools. The folding mechanism is intuitive and easy to operate, even with gloves on.

Durability & Maintenance

The SIG Sauer MCX, MPX Low Profile Picatinny Folding Stock Assembly is built to last. The aluminum construction and robust folding mechanism are designed to withstand heavy use and harsh conditions.

Maintenance is minimal. A simple wipe down with a lightly oiled cloth is sufficient to keep the assembly in good working order. The design allows for easy disassembly for more thorough cleaning if necessary.

Accessories and Customization Options

The SIG Sauer MCX, MPX Low Profile Picatinny Folding Stock Assembly comes with the necessary hardware for attaching it to any MCX or MPX with a rear 1913 Picatinny rail.

The Magpul SL-K stock is compatible with various aftermarket accessories, such as cheek risers and sling mounts. However, the folding mechanism itself offers limited customization options.

Pros and Cons of SIG Sauer MCX, MPX Low Profile Picatinny Folding Stock Assembly