Elftmann trigger pin set - Elftmann Tactical Anti-Rotational, Anti-Walk Pins

This is a very well-made, affordable pin set, without the name-tax associated with KNS pins. These pins can be installed and removed with a bullet-tip or small slotted screwdriver in the field without the need for additional tools, which allows swapping of drop-in triggers on the fly. Great design using the motorcycle drive chain style master key to lock the anti-rotation, anti-walk pins in place. They use the plates with a semi-round hole to prevent pins from rotation. Easy to install, and while perhaps not the best looking pin set, they are functional, which is what matters.