https://midstatefirearms.com/product/3-9mm-ar15-ar9-58-24-threaded-barrel/

shipping available

For your 9mm pistol build, works great with a suppressor. Most 9mm rounds won’t reach supersonic velocity with only 3″ of barrel length, so you can stay subsonic even with regular factory ammo.

• 9mm Ar15 Barrel
• 3″ length
• 5/8-24 Threads
• Thread protector sold separately (may be SS or black, random).