1/2" - 9/16" Conversion Adapters

Convert your 1/2"-36 RH (Most 9mm AR-15's, older YHM .300 BLK [Before June 2015]) barrel threads to 1/2"-28 RH with this premium stainless steel thread adapter from Infinite Product Solutions! Compatible with both rifle and pistol threads, this is the...

Convert your 1/2"-20 RH (CZ-452, CZ-455, TEC-22 Scorpion, and Steyr Scout) barrel threads to 1/2"-28 RH with this premium stainless steel thread adapter from Infinite Product Solutions! Compatible with both rifle and pistol threads, this is the perfect...

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 1/2-28 threads to 14mm x 1 LH 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: 14mm x 1 LH Material: Black...

Convert your .223 (5.56), 9mm, or .22 accessories to 16mm x 1 LH 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: 16mm...

Convert your 5/8-24 barrels and fittings to 1/2-28 RH with this premium thread adapter! Made out of black oxidized steel, this is the perfect solution for this specific accessory adaptation!   Inner Threads: 5/8-24 RH Outer Threads: 1/2-28 RH...

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 1/2-28 threads to 14mm x 1 LH 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: 14mm x 1 LH Material: Black...

Convert your 5/8-24 barrels and fittings to 1/2-28 RH with this premium thread adapter! Made out of black oxidized steel, this is the perfect solution for this specific accessory adaptation!   Inner Threads: 5/8-24 RH Outer Threads: 1/2-28 RH...

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 16mm x 1 LH 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: 16mm...

Extend your internal 3/8"-24 RH barrel threads to 1/2-28 RH for mounting standard .22 accessories such as flash hiders, Muzzle Devices, supressors, or cleaning adapters. This high quality adapter features a durable black oxide steel construction and...