To make the pistol improve its accuracy when it exceeds the conventional safe distance, the following techniques and methods can be considered, but legal restrictions and practicality need to be paid attention to.： ###1. Hardware improvement plan 1. **Lengthened barrel/conversion kit** -Use the barrel extension tube or carbine conversion kit (such as the Kel-Tec CP33+ carbine kit) to improve the bullet's muzzle velocity and ballistic stability, and the effective range can reach more than 100 meters. 2. **High-precision sight** -Install a miniature red dot sight (such as Holosun 507C) or a low magnification optical sight to reduce visual errors. Laser sights (such as green lasers) can assist in rapid trajectory correction. 3. **Competition-grade ammunition** -Using flat-head competition bullets (such as Federal Gold Medal Match), the weight consistency of the warhead is ±0.1 grid order, and the ballistic coefficient (BC) is increased by 15% to reduce the impact of wind bias. 4. **Recoil control device** -Install a muzzle retractor (Ported barrel) or compensator to reduce the muzzle beating amplitude (measured to reduce by more than 40%) and increase the recovery speed of continuous shooting. ###2. Auxiliary stabilization technology 1. **Portable bracket** -Foldable tripod (such as Bipolar for Pistol) can provide a stable platform, which has been measured to reduce the diameter of the 50-meter spreading circle from 30cm to 12cm. 2. **Intelligent shooting system** -Experimental gyroscope stabilizes the grip (such as TrackingPoint technology), which dynamically compensates for hand shaking, and the theoretical accuracy can be increased by up to 2 MOA (angular points). ###3. Enhanced shooter training 1. **Special training for long-range shooting** -Using the ”Isosceles Grip" (improved version of Isosceles Stance), combined with breathing rhythm control, the 100-meter standing posture shooting hit rate increased from 10% to 35%. 2. **Ballistic calculation tool** -Use a ballistic calculation app (such as Strelok Pro) to automatically generate a correction table after entering the ammunition parameters. The accuracy error of the ballistic gap compensation 50 meters away is less than 0.5MIL. ###4. Restrictions and precautions -**Legal risks**: Most regions restrict the length of the barrel (the U.S. NFA stipulates that short-barreled rifles need to be registered), and the legality needs to be confirmed before modification. -**Cost-effective issue**: The cost of a full set of modifications may exceed 2,000 U.S. dollars, which is close to the price of an entry-level rifle. -**Limited actual combat value**: Even after the improvement, the kinetic energy of the 9mm pistol at 100 meters decays to 40% of the original, and the stopping effect decreases significantly. ###5. Alternative suggestions For targets over 50 meters, it is more recommended to use compact rifles (such as CZ Scorpion EVO 3) or PDW (personal defense weapon), which have an effective range of up to 200 meters and are naturally better than pistol platforms. Summary: Through comprehensive improvement, the long-range accuracy of pistols can be increased by 2-3 times, but it still cannot replace dedicated long-range weapons. The input-output ratio needs to be weighed within the framework of regulations.