H&K HK MP5/SP5 SEF Housing Universal Clipped & Pinned - Used

SEF Trigger Housing - HK MP5/ SP5 Universal - Used

Finally a solution everyone was looking for. A one size fits all approach for the MP5 and SP5 style semi-auto shelf. This is the best option if you have a MP5 receiver and  a SP5. You can easily swap the lower trigger group assembly and install it on your desired receiver with out having to swap housings to accommodate the semi auto shelf. This is extremely beneficial for those that have a sear pack or a binary trigger group, you can easily remove the trigger pack from your current housing and drop it into this universal housing so you can easily swap in between receivers with out having to swap housings or having to purchase multiple complete trigger groups. Clipped & pinned to fit all HK SP5 and MP5 firearms. German HK manufactured.