The all-new MP5 SD-M suppressor offers the ultimate in modularity and customization for the integrally suppressed MP5 SD or first-generation APC9 SD submachine guns. The MP5 SD-M suppressor comes in one size yet offers three modular RBS-compatible sections that can be added or removed based upon end-user needs or mission requirements, allowing the suppressor to remain in a full-length configuration, compact or subcompact lengths. Further, two endcaps are included with the MP5 SD-M, one vented and the other non-vented.