SGM Tactical Polymer Rear Stock Trunnion – Adaptor Review

Let’s Talk About SGM Tactical Polymer Rear Stock Trunnion – Adaptor

The SGM Tactical Polymer Rear Stock Trunnion – Adaptor is a simple yet crucial component designed to modernize and enhance the ergonomics of Saiga rifles, Saiga shotguns, and many AK-47 platforms. Made by SGM Tactical, this adaptor allows users to replace the typically fixed or folding stock with an AR-15 style adjustable stock, opening a world of customization and improved handling. My personal journey to finding this product was born out of a need for greater adjustability and comfort with my Saiga rifle.

I had grown tired of the limited options for stock configuration on my Saiga. The factory stock was too short for my frame, making it uncomfortable to shoulder and reducing my accuracy. I wanted to incorporate the benefits of the AR-15 platform’s stock system, specifically its adjustability and readily available aftermarket options.

Upon receiving the SGM Tactical Polymer Rear Stock Trunnion – Adaptor, my first impression was that it was surprisingly lightweight, given its purpose. The polymer material felt robust and well-molded, displaying a clean, matte black finish. The build quality seemed solid enough to withstand the recoil of the rifle, although I admittedly had some initial reservations about polymer versus steel for such a critical component.

Compared to other AK stock adaptors, like those from Magpul or Definitive Arms (which are typically metal and more expensive), the SGM Tactical option stood out due to its price point. While the other options were certainly rugged, their cost was prohibitive for this particular build. I also considered some cheaper, no-name adaptors, but the mixed reviews and concerns about reliability steered me towards the SGM Tactical product. I was cautiously optimistic.

My initial impression was a blend of excitement and slight apprehension. I was excited about the prospect of finally being able to use my preferred AR-15 stock on my Saiga. However, I was also a little worried about the long-term durability of a polymer trunnion in a high-stress application.

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Real-World Testing: Putting SGM Tactical Polymer Rear Stock Trunnion – Adaptor to the Test

First Use Experience

My first testing session with the SGM Tactical Polymer Rear Stock Trunnion – Adaptor was at my local shooting range. I installed the adaptor on my Saiga rifle, paired it with a standard AR-15 buffer tube, and attached a Magpul MOE stock. I wanted to test its performance with different types of ammunition.

The weather was fair, but the range was dusty, providing a decent test of the adaptor’s resilience to debris. The initial installation was straightforward, although I did need to consult a few online videos to ensure correct alignment. During the first few magazines, the adaptor performed flawlessly, with no noticeable flex or movement.

However, after about 100 rounds, I noticed a slight creaking sound coming from the adaptor during recoil. This was a bit concerning, but it didn’t seem to affect the overall function or accuracy of the rifle.

Extended Use & Reliability

After several months of use, including multiple range trips and a weekend backcountry camping excursion, the SGM Tactical Polymer Rear Stock Trunnion – Adaptor has held up reasonably well. There are some visible scratches and scuff marks on the polymer, particularly around the buffer tube attachment point. The creaking sound I initially noticed has become slightly more pronounced, but the adaptor remains securely attached to the receiver.

Cleaning and maintenance have been simple, requiring only a quick wipe-down with a damp cloth after each range session. I have paid extra attention to the screws securing the adaptor to the receiver, ensuring they remain properly tightened. Compared to my previous fixed stock, the SGM Tactical adaptor offers a significantly improved shooting experience due to the adjustability and improved ergonomics of the AR-15 stock.

While a steel adaptor would undoubtedly offer greater long-term durability, the SGM Tactical Polymer Rear Stock Trunnion – Adaptor has proven to be a viable and cost-effective option for modernizing my Saiga rifle.

Breaking Down the Features of SGM Tactical Polymer Rear Stock Trunnion – Adaptor

Specifications

The SGM Tactical Polymer Rear Stock Trunnion – Adaptor is designed to fit all Saiga rifles, Saiga shotguns, and most AK-47 variants. It accepts all AR-15 commercial-spec stocks and the SGM Tactical ASSAULT STOCK. The product is manufactured by SGM Tactical and comes in black color.

The polymer construction keeps the weight down and helps absorb some recoil. The compatibility with AR-15 stocks allows for extensive customization and adjustability. These features enhance the ergonomics and overall shooting experience.

Performance & Functionality

The SGM Tactical Polymer Rear Stock Trunnion – Adaptor functions as intended, allowing users to attach an AR-15 stock to their AK platform. The primary strength of this adaptor is its affordability. The ability to customize the stock configuration is a major benefit.

However, the polymer construction is a potential weakness. While adequate for most shooters, those seeking maximum durability may prefer a metal adaptor. The adaptor meets the basic expectations of converting the stock interface.

Design & Ergonomics

The SGM Tactical Polymer Rear Stock Trunnion – Adaptor features a simple, functional design. The polymer material keeps the weight low, contributing to improved handling. The compatibility with AR-15 stocks allows for significant ergonomic improvements.

The adaptor itself is fairly user-friendly, although proper installation requires some basic gunsmithing knowledge. The lack of detailed instructions could present a learning curve for some users.

Durability & Maintenance

The lifespan of the SGM Tactical Polymer Rear Stock Trunnion – Adaptor is likely shorter than a comparable steel adaptor. However, with proper care and maintenance, it should provide years of reliable service. Regular cleaning and inspection are essential to ensure the adaptor remains in good working order.

Repairing a damaged polymer adaptor is generally not feasible; replacement is the most practical option. The low cost of the adaptor makes replacement an acceptable solution.

Accessories and Customization Options

The SGM Tactical Polymer Rear Stock Trunnion – Adaptor doesn’t come with any included accessories. However, its primary function is to enable the use of AR-15 stocks, which offer a vast array of customization options. Users can choose from various stock styles, cheek risers, and recoil pads to tailor the rifle to their specific needs.

The adaptor is also compatible with most commercial-spec AR-15 buffer tubes. This further expands the range of available accessories. The key benefit here is the massive ecosystem of AR-15 compatible accessories.

Pros and Cons of SGM Tactical Polymer Rear Stock Trunnion – Adaptor