This is only the adapter for a drum mag and does not come with the drum. The drum must be bought separate.

HPA enabled M4 mag adapter for your hi-capa from Monk, with an offset mag well for the lowest profile.

This is only the drum adapters and not the drums. The drum must be bought separate.

HPA enabled M4 mag adapter for your hi-capa from Monk, with an offset mag well for the lowest profile.