Some pistols, despite their long-standing reputations, often require a little extra care and tweaking to function at their best. Whether it’s a matter of personal preference or the pursuit of optimal performance, gun enthusiasts and professionals alike sometimes find themselves fine-tuning these firearms. Below, I’ve compiled a list of ten pistols that frequently benefit from a few modifications or adjustments to run smoothly and reliably.
Colt 1911

The Colt 1911 is a classic firearm with a storied history, but it often demands attention to run flawlessly. Common tweaks include polishing the feed ramp and adjusting the extractor tension. Many owners also opt for aftermarket triggers to improve its performance. While the 1911 is renowned for its accuracy and power, these adjustments help mitigate its susceptibility to jamming and ensure reliable feeding.
Beretta 92FS

The Beretta 92FS is a reliable sidearm for many, yet it can still benefit from minor enhancements. One common issue is the heavy double-action trigger pull, which many users choose to lighten. Additionally, upgrading the recoil spring can enhance cycling and durability. These tweaks help maintain its reputation as a dependable service pistol.
Smith & Wesson M&P Shield

The Smith & Wesson M&P Shield is a popular choice for concealed carry, but some users find its trigger to be less than ideal. Replacing or adjusting the trigger can significantly improve accuracy and control. Additionally, some owners opt for enhanced sights for better target acquisition. These adjustments can take an already solid pistol to the next level.
Glock 19

The Glock 19 is widely praised for its simplicity and reliability, but it can still benefit from personalization. Many owners prefer to upgrade the sights and trigger components for a more tailored shooting experience. Additionally, adding extended magazine releases and slide releases can improve handling and speed during reloads. These modifications are a testament to its popularity and versatility.
Sig Sauer P320

The Sig Sauer P320 is known for its modular design, but some aspects, like its trigger, often come under scrutiny. A trigger upgrade can enhance feel and performance. Some users also choose to replace the grip module for a more ergonomic fit. These tweaks ensure the P320 maintains its reputation as a reliable duty pistol.
Walther PPK

Famous for its association with fictional spies, the Walther PPK can require some fine-tuning. The factory trigger pull is often heavy, prompting many to seek out lighter aftermarket options. Additionally, polishing the feed ramp can help with feeding issues common to this model. These adjustments help keep the PPK both stylish and functional.
Ruger SR9

The Ruger SR9 is a solid performer, but its trigger can be a point of contention. Many owners choose to upgrade to a smoother trigger for improved accuracy. Additionally, adjusting the sights or replacing them with night sights can greatly enhance usability in low-light conditions. Such enhancements are popular among SR9 enthusiasts.
CZ 75

The CZ 75 is a revered model, yet it often benefits from some customization. Common tweaks include adjusting the trigger for a lighter pull and upgrading the grips for better control. Additionally, aftermarket sights can greatly improve target acquisition. These modifications keep the CZ 75 competitive among its peers.
Taurus PT111 Millennium G2

The Taurus PT111 Millennium G2 is lauded for its affordability, but it can require some attention to detail. Many users opt to polish the feed ramp and adjust the trigger for smoother operation. Upgrading the sights can also improve accuracy, making the PT111 a more reliable companion. Such enhancements are common among budget-conscious shooters.
Springfield XD

The Springfield XD series is popular for its ergonomics, yet some users find the factory trigger lacking. Upgrading to a performance trigger is a common practice. Additionally, adjusting the recoil spring can enhance cycling reliability. These tweaks help maintain the XD’s reputation as a dependable and user-friendly firearm.
*This article was developed with AI-powered tools and has been carefully reviewed by our editors.
