KNS Precision AR15/M16 .1555 Diameter Gen 2 MOD 2 Non-Rotate Trigger/Hammer Pins Review

Let’s Talk About KNS Precision AR15/M16 .1555 Diameter Gen 2 MOD 2 Non-Rotate Trigger/Hammer Pins

The KNS Precision AR15/M16 .1555 Diameter Gen 2 MOD 2 Non-Rotate Trigger/Hammer Pins are designed to be a robust upgrade for your AR platform rifle. These pins aim to eliminate trigger pin walk and reduce wear on your receiver, especially important for high-volume shooters or those using suppressed firearms. For someone who has built and maintained numerous AR platforms over the years, the potential for increased durability and reliability immediately piqued my interest.

I was experiencing accelerated wear on my AR-9 build, specifically around the trigger pin holes. The increased blowback and faster cycling were causing standard pins to walk and oblong the holes, making it a crucial area to address. Upon unboxing, the KNS Precision pins felt solid and well-machined, hinting at a higher quality than standard mil-spec pins.

I’ve used standard mil-spec pins, anti-walk pins from generic brands, and even detent-style pins. I chose the KNS Precision pins for their reputation for quality materials, robust design, and positive retention without requiring modifications to the lower receiver. My initial impression was excitement; these pins looked like they could provide a significant improvement in the longevity of my AR-9 lower receiver.

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Real-World Testing: Putting KNS Precision AR15/M16 .1555 Diameter Gen 2 MOD 2 Non-Rotate Trigger/Hammer Pins to the Test

First Use Experience

I installed the KNS Precision AR15/M16 .1555 Diameter Gen 2 MOD 2 Non-Rotate Trigger/Hammer Pins on my AR-9 pistol, which I regularly use at an indoor shooting range. This range is well-lit and climate controlled, providing a consistent testing environment. I primarily tested the pins with various 9mm loads, from standard 115 grain FMJ to heavier 147 grain subsonic rounds.

The KNS Precision pins performed flawlessly during the initial testing. Installation was straightforward, and the trigger felt crisp and consistent. There were no signs of pin walk or any issues with trigger function, even after several hundred rounds.

Extended Use & Reliability

After several months of use, the KNS Precision pins continue to perform exceptionally well. The finish shows minimal signs of wear, despite regular cleaning and lubrication. The pins have remained securely in place, and there is no noticeable play or movement within the receiver.

Compared to the stock pins, the KNS Precision pins offer a significant improvement in reliability. I no longer worry about pin walk or accelerated wear on my lower receiver. The peace of mind provided by these pins makes them a worthwhile upgrade for any AR platform, particularly those subjected to high-volume shooting or increased stress from blowback systems.

Breaking Down the Features of KNS Precision AR15/M16 .1555 Diameter Gen 2 MOD 2 Non-Rotate Trigger/Hammer Pins

Specifications

The KNS Precision AR15/M16 .1555 Diameter Gen 2 MOD 2 Non-Rotate Trigger/Hammer Pins are constructed from stainless steel, providing exceptional strength and resistance to corrosion. The pins are coated to further enhance durability and reduce friction. These pins feature a .1555 diameter, which can offer a tighter fit in lowers with slightly enlarged pin holes.

The Gen 2 MOD 2 design incorporates anti-creep retainers, preventing wear on the receiver. The kit includes installation tools and two Torx wrenches for secure tightening of the retainers. This attention to detail makes installation easy and ensures proper function.

The .1555 diameter of these pins can be a crucial specification, particularly in lowers that may have slightly out-of-spec pin holes due to wear or manufacturing variations. The enhanced durability of the stainless steel and the anti-creep retainers directly translate to increased reliability and longevity of the AR platform, preventing the dreaded “trigger pin walk” and potential damage to the receiver.

Performance & Functionality

The KNS Precision AR15/M16 .1555 Diameter Gen 2 MOD 2 Non-Rotate Trigger/Hammer Pins perform their job exceptionally well, maintaining consistent trigger function and preventing pin walk. The trigger pull remains smooth and reliable. The pins install easily and securely, providing a noticeable upgrade over standard pins.

The main strength of these pins is their ability to eliminate trigger pin walk, which is a common issue in AR platforms, especially those with high round counts. One potential weakness is that the .1555 diameter may be too tight for some lowers that are precisely to mil-spec dimensions of .154. Overall, the KNS Precision pins exceed expectations in terms of durability and reliability.

Design & Ergonomics

The KNS Precision AR15/M16 .1555 Diameter Gen 2 MOD 2 Non-Rotate Trigger/Hammer Pins are built with high-quality materials, contributing to their solid feel and durability. The added weight is negligible, but the improved function is noticeable. The design is simple and effective, providing a secure fit without any unnecessary complexity.

These pins are user-friendly, even for those with limited experience in firearm maintenance. The included installation tool and Torx wrenches make the process straightforward and hassle-free. The lack of a steep learning curve makes them an excellent upgrade for any AR owner.

Durability & Maintenance

The KNS Precision AR15/M16 .1555 Diameter Gen 2 MOD 2 Non-Rotate Trigger/Hammer Pins are designed to last for the long haul. The stainless-steel construction and durable coating ensure resistance to wear and corrosion. Regular cleaning and lubrication will further extend their lifespan.

These pins require minimal maintenance. A simple wipe-down with a lightly oiled cloth is typically sufficient to keep them in good condition. The robust construction and durable materials ensure that they will withstand thousands of rounds without any issues.

Accessories and Customization Options

The KNS Precision AR15/M16 .1555 Diameter Gen 2 MOD 2 Non-Rotate Trigger/Hammer Pins come with the necessary installation tool and Torx wrenches. They are compatible with most aftermarket triggers designed for the AR-15/M16 platform. There are no specific customization options for the pins themselves.

These pins do not limit the user’s ability to customize other components of their AR platform. They are compatible with various grips, stocks, optics, and other accessories, making them a versatile upgrade for any build. The improved reliability provided by the KNS Precision pins enhances the overall performance of the entire firearm.

Pros and Cons of KNS Precision AR15/M16 .1555 Diameter Gen 2 MOD 2 Non-Rotate Trigger/Hammer Pins