Thread Protector: 1/2 x 28, 9mm and .357 SIG
The Lone Wolf thread protector is manufactured from solid 303 stainless steel. Designed to protect your threaded barrel when an accessory is not installed.
- This thread protector is common to 9mm caliber threaded barrels. (including 9mm conversion threaded barrels)
- Fits all 1/2 x 28 threaded barrels.