DEAD AIR THREAD SPACER 1/2X28

Black Rain Ordnance Bro-22 A2 Thread Protector 1/2-28, Black

Grovtec US Inc Thread Protector 1/2-28, Black

GEMTECH Direct Thread Adapter Black to 1/2x28

JK Armament 155HD Thread Mount 1/2-28, Armor Black - Secure, Reliable Mounting - JK-155-HDM28

AB Suppressor Raptor Muzzle Thread Adapter 1/2-28 to 5/8-24 - Adaptable Thread Solution - TA-1/2-28

Backup Tactical 1/2x28 RH .223 Rem Rifle Thread Protector With Frag Pattern, Black - FRAG-BLK223

Backup Tactical Frag Pistol Thread Protector 1/2x28 RH, Black - FRAG-BLK