The J-CLIP-R(TM) is designed specifically to fit 5-shot J-frame size Ruger LCR and LCRx revolvers chambered in 38SP and 357 Magnum Only. Will not fit the 9mm Luger, 327 Federal Magnum, 22 LR or 22 WMR models. Pentagon shape for real fit Ruger LCR 38/357. The J-CLIP-R(TM) works great with Ruger factory grips. Made from tough BPA, BPS, BPF free polyurethane material for use in both hot and cold environments. The J-CLIP-R(TM) is difficult to align using full wadcutter and Federal HST +P Micro ammunition. The Zeta6(TM) J-CLIP-R(TM) is not recommended for Ruger LCR revolvers fitted with extra-large rubber or wooden grips. Mfg: Zeta6