Will Fit: Models 17, 44, 405, 415, 425, 445, 450, 455, 606, 617, 627, 692, 817, 970, 971, 990, 991, 992, 4510 IMPORTANT: • Will Not Fit ALL Public Defender Models (Steel, Stainless Steel, Polymer, Alloy) • Will Not Fit Small, Large or Extra Large Frames