Alpha Full-sized grip plate assembly is for the REGULUS Alpha, LH9, LH9N, LH9-MKII, DP51
Beta Compact size grip plate assembly is for the REGULUS Beta, LH9C, LH9CN, DP51C
*Please note: Grips include screws for REGULUS. If used on LH9 or DP51, reuse your grip screws. The REGULUS grip screws are longer and will interfere with the magazine if used on an LH9 or DP51.