Stupid Airsoft does an installation of Jeff's Airsoft stainless steel extended bolt release on a DMR AAP-01. The extended bolt release offers improved actuation, especially with a carbine kit, and features a sandpaper-like texture for enhanced grip. Made from a durable material, it is less prone to bending or rusting than stock versions. The installation process involves disassembling parts of the AAP-01, including the hammer and trigger bar, and carefully reinstalling springs and pins. He highly recommends this upgrade for its user-friendliness, comfort, and superior design compared to cheaper alternatives.