18mm and Larger Conversion Adapters

Convert your large 24mm x 1.5 RH (most AK-74) barrel threads to your favorite 308 or 300 blackout accessories with this 24mm x 1.5 RH to 5/8-24 RH thread adapter! Made out of black oxidized steel, this is the perfect solution for this specific accessory...

Do you have an older CZ Scorpion EVO (9mm) with the larger 18mm threads on it? Convert those 18mm x 1 RH barrel threads to your favorite 1/2-28 RH accessories with this 18mm x 1 RH to 1/2-28 RH thread adapter! Made out of black oxidized steel, this is...

Convert your large 24mm x 1.5 RH (most AK-74) barrel threads to your favorite AK-47 (7.62x39) accessories with this 24mm x 1.5 RH to 14mm x 1 LH thread adapter! Made out of black oxidized steel, this is the perfect solution for this specific accessory...

Convert your large PAP 92 or Zastava M85 barrel threads to your favorite AK-47 (7.62x39) accessories with this 26mm x 1.5 LH to 14mm x 1 LH thread adapter! Made out of black oxidized steel, this is the perfect solution for this specific accessory...

Convert your large PAP 92 or Zastava M85 barrel threads to your favorite .308 (AR-10) accessories with this 26mm x 1.5 LH to 5/8-24 RH thread adapter! Made out of black oxidized steel, this is the perfect solution for this specific accessory...

Convert your Sig Sauer and Glock 9mm (left handed) 9mm barrels to your .223 (5.56), 9mm, or .22 accessories with this 13.5mm x 1 LH thread adapter! Made out of black oxidized steel, this is the perfect solution for this specific accessory adaptation!...

Convert your Sig Sauer and Glock 9mm (left handed) 9mm barrels to your .223 (5.56), 9mm, or .22 accessories with this 13.5mm x 1 LH to 1/2-28 thread adapter! Made out of black oxidized steel, this is the perfect solution for this specific accessory...

Extend your internal Walther P22, Walther PPK/S, M&P 22, Colt/Umarex 1911 A1, and Colt Gold Trophy .22 barrel threads to 1/2-28 RH for mounting standard .22 accessories such as flash hiders, Muzzle Devices, supressors, or cleaning adapters. This high...

Extend your Sig 1911 (.22LR) and  GSG 1911 (.22LR) 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...

Convert your Sig Mosquito (.22) barrel thread 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...

Extend your internal Walther P22 (standard 3.4" barrel model only), Walther PPK/S, M&P 22, Colt/Umarex 1911 A1, and Colt Gold Trophy .22 barrel threads to 1/2-28 RH for mounting standard .22 accessories such as flash hiders, Muzzle Devices,...