Not for ambi users - Franklin Armory BFSIII HK-C1 Trigger - Binary Firing System for HK 91/93/MP5

The selector lever extends down into the grip area when in binary mode and interferes with your grip. I am a left handed shooter, so I had to remove the left side lever to make the gun usable with this trigger. I like HK because they tend to support ambidextrous operation, but my SP5K is no longer ambi. Will likely put the original HK trigger back on the gun or pay to have a machinist fabricate a usable lever. Contacted their customer service to address the issue and was told that this is their standard HK trigger lever. Overall feel of the trigger is not worthy of HK.