NcStar SKS Gas Tube Scope Mount w/ Side Rails Review

What I Found Using the NcStar SKS Gas Tube Scope Mount w/ Side Rails

For years, I’ve found myself constantly seeking upgrades for my SKS, striving to bridge the gap between its classic design and modern shooting capabilities. The quest for a solid optic mounting solution without resorting to permanent modifications has been a persistent one. This search ultimately led me to the NcStar SKS Gas Tube Scope Mount w/ Side Rails, a component promising to integrate an optic directly into the SKS’s familiar form factor. Manufactured by NcSTAR, this gas tube replacement aims to provide a stable platform for optics while retaining the rifle’s core functionality. My initial impressions upon unboxing were of a sturdy, albeit utilitarian, piece of hardware. I had considered a few other receiver-mounted options in the past, but they often required significant stock alterations or clamped onto the existing dust cover, which I distrusted for holding zero. This gas tube solution offered a more integrated approach, and I felt a sense of cautious optimism.

Real-World Testing: Putting NcStar SKS Gas Tube Scope Mount w/ Side Rails to the Test

First Use Experience

My initial testing began on a crisp autumn day at my local outdoor range, specifically set up for rifle practice. I was eager to see how this gas tube mount would perform after the necessary fitting. The user feedback indicated that fitting was not always a drop-in affair, and I braced myself for a bit of a project. The initial installation required careful attention to the instructions, particularly the filing process to achieve a snug fit. I followed the guidance, slowly removing material from the rear section of the gas tube and chamfering the muzzle end to clear the gas block.

This fitting process, while requiring patience and a steady hand, was ultimately rewarding. It took a few hours of meticulous filing and test fitting, ensuring I kept the surfaces level to avoid any cant. The color match to my Chinese Norinco Type 56 (1963 Arsenal 26) was surprisingly good, which is always a nice aesthetic touch. Once fitted, the optic mount felt remarkably solid, with no discernable wiggle or play. I mounted a Vortex Crossfire 2-7x scout scope, which is designed for long eye relief, and it sat perfectly in the channel provided. The initial shooting confirmed that the mount held its position admirably, and the optic remained zeroed through a series of rapid fire drills.

Extended Use & Reliability

Over the subsequent months, this optic mount has become a permanent fixture on my SKS. It has endured numerous range trips, survived being stored in various conditions, and even experienced a few minor bumps and scrapes during transport to different shooting locations. The steel construction of the gas tube itself has proven robust, showing no signs of cracking or deformation. The aluminum rail on top, while lighter, has also held up well, with only minor cosmetic scuffs from mounting and dismounting optics.

Cleaning and maintenance have been straightforward. Periodically, I remove the optic and wipe down the rail surfaces to ensure a clean interface. The gas tube itself requires standard cleaning, similar to the factory part. The set screws that secure the mount to the rear sight trunnion have remained tight, especially after I applied a small amount of blue Loctite, a recommendation that proved wise. Compared to previous temporary scope mounts I’ve used on this platform, this integrated gas tube unit offers a significant leap in stability and zero retention. It has truly transformed the utility of my SKS, allowing for more precise shooting at distances previously impractical without magnification.

Breaking Down the Features of NcStar SKS Gas Tube Scope Mount w/ Side Rails

Specifications

The NcStar SKS Gas Tube Scope Mount w/ Side Rails is a replacement for the SKS rifle’s factory gas tube and upper handguard. It features a 9.8-inch length and weighs in at 10.9 oz. The primary construction materials are steel for the gas tube and aluminum for the rail, offering a balance of durability and weight.

• Steel Gas Tube: This robust construction is crucial for handling the heat and pressure generated during firing. It replaces the original gas tube, forming the foundation of the optic mount.
• Aluminum Picatinny Rail: A low profile Picatinny rail runs along the top, designed with a sight channel down the middle. This allows for the continued use of iron sights if needed, a valuable feature for versatility.
• Side Rails: Two removable Picatinny side rails are included, which can be attached to any of the six ventilation holes. These offer mounting points for accessories like lights or lasers.
• Optical Mounting Design: The top rail is specifically engineered to accommodate optics with long eye relief, ideal for a scout rifle setup. This means it’s well-suited for scout scopes or certain reflex dot sights.
• Securing Mechanism: Two set screws are used to firmly attach the mount to the rear sight trunnion, creating a stable platform for optics. This is a key element in ensuring consistent zero.
• Hand Fitting Requirement: Notably, the product description states the gas tube is manufactured “just slightly longer by a few thousandths.” This implies that some hand-fitting may be required for a secure fit across various SKS manufacturers.

These specifications highlight a product designed for function and compatibility. The combination of materials suggests a durable yet manageable weight addition to the rifle. The inclusion of a sight channel and removable side rails adds significant practical utility.

Performance & Functionality

The primary function of the NcStar SKS Gas Tube Scope Mount w/ Side Rails is to provide a stable platform for optics on an SKS rifle. In this regard, it performs exceptionally well, especially considering the common challenges of mounting optics to this platform. The steel gas tube provides a rigid base, and once properly fitted, it holds its zero through repeated firing sequences.

The long eye relief capability is a major strength, perfectly accommodating scout-style scopes that are often preferred for semi-automatic rifles like the SKS. The integrated sight channel is a thoughtful touch, ensuring that the rifle remains functional even without an optic, or as a backup sighting system. The removable side rails are also a plus, allowing for modularity in accessory attachment. However, the requirement for hand-fitting is a double-edged sword; while it ensures a supremely tight fit, it can be a barrier for those not inclined to perform minor gunsmithing tasks.

Design & Ergonomics

The design of this gas tube mount is functional and integrates well with the SKS’s aesthetic. The sleek new design replaces the factory gas tube and handguard, presenting a unified look. The low profile rail prevents the optic from sitting excessively high, which aids in maintaining a natural shooting posture.

Ergonomically, the unit is comfortable to handle, assuming it has been properly fitted. The weight of 10.9 oz is noticeable but not excessive, especially when balanced against the improved aiming capabilities it offers. The textured gripping surfaces on the gas tube, often derived from the factory design, remain accessible. The ventilation holes on the gas tube not only serve their primary purpose but also provide attachment points for the side rails, demonstrating intelligent design.

Durability & Maintenance

Durability is a key aspect of this mount, given its role in housing a potentially sensitive optic. The steel construction of the gas tube is inherently robust and should withstand the rigors of regular use and heat cycles. The aluminum rail is less prone to corrosion than steel and provides a good surface for optic mounting.

Maintenance is straightforward, involving standard rifle cleaning procedures. The most critical aspect is ensuring the set screws remain tight and that the fitted surfaces do not loosen over time. Applying blue Loctite is highly recommended to prevent screws from vibrating loose during firing. Any signs of wear would likely appear on the finish of the rail or gas tube from repeated mounting and unmounting of accessories, but the underlying materials are sound.

Accessories and Customization Options

The primary “accessory” that comes with this product is the two Picatinny side rails that can be mounted into the ventilation holes. These are valuable for adding tactical accessories. The US Patent D732628 on the design suggests a degree of innovation.

Beyond the included side rails, the main customization lies in the choice of optic. The design specifically caters to long eye relief scout scopes or reflex dot sights. This allows users to select optics that best suit their intended use, whether it’s for general shooting, hunting, or tactical applications. The Picatinny standard ensures broad compatibility with a vast array of aftermarket optics and accessories designed for this rail system.

Pros and Cons of NcStar SKS Gas Tube Scope Mount w/ Side Rails

Who Should Buy NcStar SKS Gas Tube Scope Mount w/ Side Rails?

This gas tube scope mount is an excellent option for SKS owners looking to upgrade their rifle with an optic without performing permanent modifications. It is particularly well-suited for those who appreciate the scout rifle concept and want to utilize long eye relief optics. Enthusiasts who enjoy tinkering with their firearms and possess basic hand tool proficiency will find the fitting process manageable and rewarding.

Individuals who prioritize a budget-friendly optic solution for their SKS should also consider this mount. However, those who prefer a completely drop-in installation or are uncomfortable with even minor filing and fitting should look for alternative mounting systems. It’s also important to note that this is not a precision target shooting mount; its strengths lie in adding practical sighting capabilities for general use, hunting, or defensive scenarios. A must-have accessory would be a good set of files and sandpaper, along with blue Loctite for securing the set screws.

Conclusion on NcStar SKS Gas Tube Scope Mount w/ Side Rails

The NcStar SKS Gas Tube Scope Mount w/ Side Rails is a compelling upgrade for the venerable SKS platform, offering a functional and affordable way to integrate modern optics. While the requirement for hand-fitting might deter some, the result of proper installation is a rock-solid mounting solution that significantly enhances the rifle’s usability. The thoughtful design, including the integrated sight channel and versatile side rails, adds considerable value.

At its price point of $33.29, this optic mount represents excellent value, especially when compared to more expensive alternatives that may offer similar functionality. For the SKS owner willing to invest a few hours of their time and some elbow grease, this mount delivers a stable and reliable optic platform that can genuinely transform the rifle. I would readily recommend it to anyone looking to equip their SKS with a scout scope or red dot sight, provided they are prepared for the fitting process. It’s a testament to how affordable accessories can breathe new life into classic firearms.