The muzzle with the Kel-Tec P17’s three.eight" barrel is threaded, plus the gun comes along with the two a 1/2x28 TPI threaded barrel extension along with a thread protector (proven). The bilateral thumb basic safety levers swing up in to the Protected placement and down, revealing dazzling red warning dots, https://lukasrbeha.bloggerchest.com/22210407/kel-tec-p17-for-dummies