The most famous part of the story. Most KP-9 users must install the included roll pin into the trigger tail and file it down until the safety can just barely engage.
New setups may experience the bolt "hanging" on the hammer when manually cycling. This typically goes away after a "break-in" period of shooting or by applying lithium grease to the contact points. 💡 Key Tip alg-trigger-kp9
The "complete story" of the (specifically the AKT-EL or AKT-UL ) in the Kalashnikov USA KP-9 is one of the most popular performance upgrades for the platform, but it involves specific installation quirks and common troubleshooting steps. 🛠️ The Installation Journey The most famous part of the story
Despite its popularity, there are three main issues that frequently pop up in the community: This typically goes away after a "break-in" period
There has been historical debate about the harder ALG hammer "peening" (deforming) the rear of the bolt carrier over thousands of rounds, leading some users to polish or "profile" the hammer face to match the factory geometry.