Christensen Arms One Piece Scope Base CA Ranger Action Review

Everything I Learned from the Christensen Arms One Piece Scope Base CA Ranger Action

As someone who’s spent over a decade pushing gear to its limits in environments ranging from dusty workshops to precise laboratory benches and rugged field conditions, I’m always on the lookout for components that genuinely enhance performance without unnecessary fuss. My search for an improved mounting solution for my Christensen Arms Ranger .22 rifle led me to the Christensen Arms One Piece Scope Base CA Ranger Action. This particular optic rail was a direct response to a frustrating limitation I encountered: running out of scope adjustment at longer distances, particularly during competitive shooting events like NRL22 where every click and every yard matters.

Before acquiring this rail, my setup, while functional, had reached its ceiling. The existing mounts simply didn’t offer the flexibility needed to dial in for those precise shots beyond a couple hundred yards. I considered a few other aftermarket options, but many involved more complex mounting systems or were priced significantly higher than what I felt was necessary for a .22LR platform. The allure of a simple, direct replacement that offered integrated cant, immediately caught my attention. My initial impression upon holding the Christensen Arms One Piece Scope Base CA Ranger Action was one of solid, no-nonsense engineering. The hardcoat anodized 7075 aluminum felt robust, suggesting it could withstand the bumps and vibrations inherent in firearms use. There was an immediate sense of relief, a feeling that a persistent problem might finally have a straightforward solution.

Real-World Testing: Putting Christensen Arms One Piece Scope Base CA Ranger Action to the Test

My testing grounds for this optic base were primarily the shooting range, specifically focusing on scenarios relevant to precision rimfire shooting. I mounted it on my Christensen Arms Ranger rifle, ensuring it was properly torqued down according to best practices. The initial setup was straightforward, requiring minimal tools beyond a torque wrench and appropriate driver bits. I tested it in a variety of conditions, though for a scope base, extreme environmental factors are less critical than its consistency and structural integrity.

The immediate impact was noticeable. The ability to select different MOA tapers – in my case, I opted for the 20 MOA version initially – provided the necessary elevation adjustment to reach targets at 300 yards and beyond without maxing out my scope’s internal turrets. This significantly increased my confidence and effectiveness in longer-range rimfire engagements. After several range days, involving repeated firing and adjustments, the scope base has shown no signs of degradation. The anodized finish remains intact, and there’s no play or looseness in the mounting screws.

First Use Experience

My first experience with the Christensen Arms One Piece Scope Base CA Ranger Action was at the local indoor range, followed by an outdoor session on a bright, clear day. The installation was a direct replacement for the factory mounts, and it fit snugly onto the action with no discernible gaps or need for shimming. The choice of MOA taper was crucial; the 20 MOA angle provided ample upward adjustment for my intended shooting distances, something my previous setup sorely lacked. It was remarkably intuitive; once mounted, it performed its function without requiring any special handling or acclimatization. The only slight surprise was how much of a difference such a seemingly simple component could make to my shooting capabilities.

Extended Use & Reliability

Over several months of regular use, participating in monthly NRL22 competitions and general plinking sessions, the Christensen Arms One Piece Scope Base CA Ranger Action has proven to be a remarkably reliable component. I’ve subjected it to the usual knocks and vibrations associated with transporting a rifle to and from the range, and it has held its zero perfectly. The 7075 aluminum construction, finished with a hardcoat black anodize, has resisted superficial scratches and scuffs that would likely mar lesser materials. Cleaning is as simple as wiping it down with a dry cloth or a mild degreaser if needed, and re-torquing the screws periodically ensures continued stability. Compared to the multi-piece bases I’ve used in the past, which often require more meticulous alignment and can develop minor inconsistencies over time, this single-piece unit offers superior long-term reliability and ease of maintenance.

Breaking Down the Features of Christensen Arms One Piece Scope Base CA Ranger Action

The Christensen Arms One Piece Scope Base CA Ranger Action is a meticulously engineered component designed to bridge the gap between a rifle’s action and its optic, providing a stable and adjustable platform. Its core benefit lies in its integrated cant, which is a crucial feature for shooters who engage targets at varying distances. The material choice and construction methods speak to Christensen Arms‘ commitment to producing durable and functional firearm accessories.

Specifications

The specifications of this optic base are concise yet informative, highlighting its practical design. It is machined from robust 7075 aluminum, a material known for its high strength-to-weight ratio, making it ideal for firearm components where durability and minimal mass are key. The hardcoat black anodize finish provides excellent resistance to corrosion and abrasion, ensuring the base maintains its aesthetic and functional integrity over time.

• Manufacturer: Christensen Arms
• Fabric/Material: Aluminum (specifically 7075 aluminum)
• Length: 16.5 cm (approximately 6.5 inches)
• Width: 2 cm (approximately 0.79 inches)
• Weight: 2.1 oz (a very respectable weight, contributing minimally to the overall rifle mass)
• Condition: New
• Country of Origin: USA

These specifications translate directly into user benefits. The 16.5 cm length is ample for most common scope mounting configurations on the Ranger action, allowing for optimal eye relief adjustment. The 2.1 oz weight is practically negligible, ensuring it won’t add unnecessary bulk to the rifle. The use of 7075 aluminum and hardcoat black anodize guarantees that this component is built to endure the rigors of shooting. The USA manufacturing is also a point of pride for many, often correlating with higher quality control standards.

Performance & Functionality

The primary job of any scope base is to provide a stable, repeatable platform for mounting an optic. The Christensen Arms One Piece Scope Base CA Ranger Action excels at this fundamental task. Its single-piece construction eliminates potential points of failure or misalignment that can occur with two-piece bases.

The key functionality, however, lies in the integrated MOA taper. Available in 0, 20, 40, or 60 MOA, this feature is a game-changer for precision shooting. For instance, the 20 MOA taper I chose effectively preloads my scope’s elevation adjustment, allowing me to dial in for longer distances without reaching the mechanical limits of the turret. This is a significant improvement over standard flat bases for any application requiring extended range capability, particularly in rimfire disciplines where bullet drop can be substantial. The base does exactly what it’s designed to do: it securely holds the scope and provides the necessary cant for extended ballistic solutions.

Design & Ergonomics

The design of this scope base is elegantly simple, emphasizing function over form. Its one-piece construction is a hallmark of a well-thought-out component. The machined aluminum provides a clean, precise interface for scope rings.

The hardcoat black anodize finish is not only durable but also provides a non-reflective surface, which is important for tactical or competition shooting to avoid glare. While the base itself doesn’t have direct ergonomic features like grips, its precise fit and finish contribute to the overall tactile experience of handling the rifle. The clean lines and lack of unnecessary protrusions mean it won’t snag on gear or clothing. It’s a design that prioritizes the optic’s stability and the shooter’s ability to make precise adjustments.

Durability & Maintenance

Given its construction from 7075 aluminum with a hardcoat black anodize, the durability of this scope base is expected to be excellent for its intended use. For a component designed to be mounted and stay put, there are few components prone to failure under normal operation.

Maintenance is incredibly straightforward. A simple wipe-down with a clean cloth is usually all that’s needed to keep it free of dust and debris. If it becomes particularly dirty, a mild degreaser and a soft brush can be used, followed by a thorough drying. The anodized finish is resistant to most common cleaning solvents. The primary concern for longevity would be proper installation – ensuring the mounting screws are torqued to the correct specifications to prevent damage to the action or the base itself. I haven’t encountered any issues that would suggest premature wear or a significant failure point.

Accessories and Customization Options

The Christensen Arms One Piece Scope Base CA Ranger Action is designed to integrate seamlessly with standard scope rings. It doesn’t come with bundled accessories, as its purpose is singular: to provide a mounting platform. However, its primary “customization” comes from the selection of MOA tapers.

• 0 MOA: Ideal for short-range shooting where minimal elevation adjustment is needed.
• 20 MOA: A popular choice for mid-range precision shooting, offering a good balance for extending effective range.
• 40 MOA: For shooters pushing the limits of .22LR or other cartridges requiring significant holdover at longer distances.
• 60 MOA: The most extreme option, catering to specialized long-range applications.

The base is designed to be compatible with virtually any reputable scope rings that adhere to Picatinny or Weaver standards, which is a testament to its universal design principles. This broad compatibility means users aren’t locked into a proprietary ring system.

Pros and Cons of Christensen Arms One Piece Scope Base CA Ranger Action

Who Should Buy Christensen Arms One Piece Scope Base CA Ranger Action?

The Christensen Arms One Piece Scope Base CA Ranger Action is an excellent choice for shooters who are serious about maximizing the long-range potential of their Christensen Arms Ranger .22 rifle or similar actions. It’s particularly well-suited for those participating in precision rimfire competitions like NRL22, where the ability to dial in precise adjustments for distance is paramount. Enthusiasts looking to extend their effective range beyond 200-300 yards will find the integrated MOA taper invaluable.

Conversely, individuals who only shoot at very close ranges (under 100 yards) and do not plan to engage targets at extended distances may not see the full benefit of the canted design, and a standard flat base might suffice. For such users, the added cost of a canted base might not be justified. If you frequently swap optics or require a base with integrated accessory mounting points, this might not be the best fit. A highly recommended complementary item would be a good quality torque wrench to ensure proper installation, guaranteeing the longevity and reliability of the mount.

Conclusion on Christensen Arms One Piece Scope Base CA Ranger Action

My experience with the Christensen Arms One Piece Scope Base CA Ranger Action has been overwhelmingly positive. It’s a product that addresses a specific, common limitation in shooting – the finite range of scope adjustments – with a simple yet highly effective solution. The quality of materials, the precision machining, and the durable finish all speak to Christensen Arms‘ commitment to producing reliable firearm components. For its price point of $59.99, the value offered, especially with the integrated MOA cant, is exceptional.

This optic base is a solid investment for any Ranger .22 owner looking to improve their long-range accuracy and shooting confidence. It eliminates the frustration of running out of adjustment and provides a stable, repeatable platform for your optic. I would readily recommend this scope base to any shooter who fits the profile of a competitive rimfire enthusiast or anyone looking to push the boundaries of their .22LR rifle’s capabilities. It’s not just an accessory; it’s an upgrade that directly translates to better performance on the range.