One nice thing about the HP22 (Phoenix Arms .22lr) is that it has barrel interchangeability and it is easy to do. The little pistols usually come with the 3 inch barrel, in stainless or black look. You can order a kit for around $40 that has an extra ten round mag and a five inch barrel. Thread the five inch barrel for more quiet shooting, carry the three inch barrel configuration for pocket wear. I threaded my five inch barrel for 1/2 x 28, which is the most common thread pattern for pistol calibers in the US. When I get several weapons threaded up and ready, I’ll order a suppressor to use on them all.