18mm and Larger Conversion Adapters

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 14mm x 1 LH (AK-47 and AK-M) barrel threads to 5/8"-24 RH with this premium black stainless steel thread adapter from Infinite Product Solutions! Compatible with both rifle and pistol threads, this is the perfect solution for this particular...

Convert your 14mm x 1 RH (select SKS, SA VZ-58, and Century VZ208) barrel threads to 1/2"-28 RH with this premium black stainless steel thread adapter from Infinite Product Solutions! Compatible with both rifle and pistol threads, this is the perfect...

Convert your 13mm x 1 LH (Steyr AUG .223 /5.56) barrel threads to 1/2"-28 RH with this premium black stainless steel thread adapter from Infinite Product Solutions! Compatible with both rifle and pistol threads, this is the perfect solution for this...

Convert your 13mm x 1 RH (Older Galil [.223, 5.56, .308, 7.62x39] and Arsenal Strike One) barrel threads to 1/2"-28 RH with this premium black stainless steel thread adapter from Infinite Product Solutions! Compatible with both rifle and pistol threads,...

Convert your 14mm x 1 RH (select SKS, SA VZ-58, and Century VZ208) 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 solution...

Convert your 13mm x 1 LH (Steyr AUG .223 /5.56) 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 solution for this particular...

Convert your 13mm x 1 RH (Older Galil [.223, 5.56, .308, 7.62x39] and Arsenal Strike One) 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...

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...