Factory German H&K UMP trigger groups. Four position; safe and semi-auto, burst, full. These came from Police trade-in HK UMP guns. They are used in very good condition. You can expect some small scratches, faded paint, and wear marks. Some may also have grip tape on them. Sold as is, no returns/exchanges. All sales final. Item pictured is representative of one you will receive.
All NFA laws Apply!