1/2" - 9/16" Conversion Adapters

Convert your .308, 300 BO, and .30 calibre Muzzle Devices, shrouds and accessories to your .223 (5.56), 9mm, or .22 with this 1/2-28 to 5/8-24 thread adapter! Made out of black oxidized steel, this is the perfect solution for this specific accessory...

Convert your .223 (5.56), 9mm, or .22 accessories to .578-28 RH with this premium thread adapter! Made out of black oxidized steel, this is the perfect solution for this specific accessory adaptation!   Inner Threads: 1/2-28 RH Outer Threads: ...

Convert your .223 (5.56), 9mm, or .22 accessories to .578-28 RH with this premium thread adapter! Made out of black oxidized steel, this is the perfect solution for this specific accessory adaptation!   Inner Threads: 1/2-28 RH Outer Threads: ...

Convert your .308, 300 BO, and .30 caliber Muzzle Devices, shrouds and accessories to your .223 (5.56), 9mm, or .22 with this 1/2-28 to 5/8-24 thread adapter! Made out of black oxidized steel, this is the perfect solution for this specific accessory...