NcStar AR15 Tri-Rail Mount Flattop, Weaver Review

First Thoughts on the NcStar AR15 Tri-Rail Mount Flattop, Weaver

The NcStar AR15 Tri-Rail Mount Flattop, Weaver promises to be a simple and affordable solution for adding versatility to any flat-top AR-15. It offers three Weaver-style rails for mounting optics, lights, lasers, or other accessories. At a price point of just $23.99, the NcStar mount is definitely aimed at budget-conscious builders or those looking to experiment with different accessory configurations without breaking the bank.

My need for this product stemmed from a recent project where I was trying to set up a dedicated home defense AR-15. I needed a way to mount both a weapon light and a red dot optic without investing in a high-end free-float rail system. I’d been eyeing some of the pricier options, but the NcStar AR15 Tri-Rail Mount Flattop, Weaver caught my eye as a potential temporary (or even permanent) solution.

Unboxing was straightforward – the mount comes in simple packaging. My initial impression was that the construction appeared somewhat basic, but the aluminum felt reasonably solid for the price. The finish isn’t exactly premium, but it is functional. Compared to free-float quad rails from Midwest Industries or even some of the more robust drop-in options from Magpul, this NcStar mount definitely feels less refined.

I chose this mount specifically for its low cost and ease of installation. It seemed like a quick and dirty way to add rails without requiring any gunsmithing. I was cautiously optimistic.

Real-World Testing: Putting NcStar AR15 Tri-Rail Mount Flattop, Weaver to the Test

First Use Experience

I first tested the NcStar AR15 Tri-Rail Mount Flattop, Weaver at an indoor shooting range. The ambient temperature was a comfortable 70 degrees, so weather wasn’t a factor. Installation was a breeze; it literally took minutes to clamp the mount onto my flat-top receiver.

Initially, it felt secure, but after about 50 rounds of 5.56, I noticed some slight shifting. This movement was minimal, but concerning. It definitely impacted my confidence in relying on this mount for critical aiming accessories. I also noticed that with my particular optic and light setup, the added height of the mount made it a bit awkward to get a consistent cheek weld.

Extended Use & Reliability

After several range trips and approximately 500 rounds, the NcStar AR15 Tri-Rail Mount Flattop, Weaver continued to function, but the initial shifting remained a concern. There were no catastrophic failures, but the slight movement definitely impacted accuracy, especially at distances beyond 50 yards. The mount’s finish started showing wear around the edges after a few months.

Maintenance is simple – just wipe it down with a cloth. I tried tightening the side weaver tabs further, but it didn’t completely eliminate the movement issue. Compared to a properly installed free-float rail, the NcStar mount falls short in terms of long-term reliability and precision.

Breaking Down the Features of NcStar AR15 Tri-Rail Mount Flattop, Weaver

Specifications

The NcStar AR15 Tri-Rail Mount Flattop, Weaver is designed for AR15/M4 flat-top receivers. It features adjustable side weaver tabs for secure attachment.

  • Weight: 7.78 oz. This is a noticeable addition to the rifle, but not excessively heavy.
  • Length: 5.24″. It provides ample rail space for mounting various accessories.

These specifications are important because they directly impact the rifle’s balance and the amount of accessories that can be mounted.

Performance & Functionality

The NcStar AR15 Tri-Rail Mount Flattop, Weaver functions by clamping onto the existing flat-top receiver, providing three Weaver-style rails. It allows for mounting optics on the top rail and accessories like lights and lasers on the side rails.

Its main strength is its simplicity and affordability. The weakness is its potential for shifting under recoil, impacting zero retention for optics. It meets the basic need of adding rails, but doesn’t exceed expectations for ruggedness and precision.

Design & Ergonomics

The build quality is adequate for the price. The materials are aluminum, but the finish is basic. It is relatively easy to install, but the added height can affect cheek weld for some users. There is a noticeable learning curve for tightening down the Weaver tabs just right, so as not to over-tighten or under-tighten.

Durability & Maintenance

Durability seems to be a question mark. The mount will likely last for a reasonable amount of time under light use, but hard use may reveal its limitations. Maintenance is very simple: a quick wipe-down.

Accessories and Customization Options

The NcStar AR15 Tri-Rail Mount Flattop, Weaver itself doesn’t come with any accessories. It allows for the mounting of any accessory that utilizes a Weaver-style mount, such as red dot optics, flashlights, lasers, and vertical grips. The mount is generally compatible with most Weaver-style accessories from other brands.

Pros and Cons of NcStar AR15 Tri-Rail Mount Flattop, Weaver

Pros

  • Affordable price point: Great for budget builds or experimentation.
  • Easy installation: Requires no gunsmithing.
  • Versatile: Provides three Weaver-style rails for multiple accessories.
  • Lightweight: Doesn’t add excessive weight to the rifle.
  • Compatible with most Weaver-style accessories.

Cons

  • Potential for shifting under recoil: Can affect zero retention.
  • Basic build quality: Less durable than higher-end options.


Who Should Buy NcStar AR15 Tri-Rail Mount Flattop, Weaver?

The NcStar AR15 Tri-Rail Mount Flattop, Weaver is perfect for casual shooters, budget-minded builders, or those who want to experiment with different accessory configurations without a significant investment. It’s also suitable for airsoft enthusiasts.

Those who should skip this product include serious competitive shooters, law enforcement professionals, or anyone who relies on absolute precision and rock-solid reliability. They should invest in a higher-quality free-float rail system.

A must-have modification would be using threadlocker on the screws of the Weaver tabs to try and prevent shifting.

Conclusion on NcStar AR15 Tri-Rail Mount Flattop, Weaver

The NcStar AR15 Tri-Rail Mount Flattop, Weaver offers an inexpensive and easy way to add rail space to an AR-15. While it’s not the most robust or precise option, its price makes it an attractive choice for certain users.

The value proposition is decent: you get what you pay for. I would cautiously recommend it to those on a tight budget or for non-critical applications. However, for serious use, consider investing in a higher-quality rail system. Weigh your needs, consider the potential limitations, and make an informed decision.


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