Standard 22 Cal 1/2-28 Right Hand Threads. 303 stainless steel.
*WARNING* this brake is rated for a .223/5.56 bullet. Just because the threads match your barrel does not mean this is the brake you need.
Bore diameter .280”
Outside diameter .880”
Overall length 2.80”
4.512oz
Please read our warranty before buying. Any attempt to install this brake without a certified gunsmith voids all warranties. We are not liable for incorrect use or installation.