Prometheus Straight Sigma Trigger M4 AEG Color:Silver Fits the USP and the

Fits the USP and the USP Compact

rear stock and twist the buttplate in either direction (see picture)

sized head (kids to adults)

is vented for comfort and the fingertips are closed for added tip protection

Electronics: Compatible with all Wolverine Airsoft Electronics

Prometheus Straight Sigma Trigger M4 AEG Color:Silver Fits the USP and theThe new Prometheus Straight Sigma Trigger made for standard M4 AEG airsoft guns. Red, Gold, Silver, and Black colors available. The straight trigger that matches stylish hand guards and frames, sharp design. It consists of two parts, a base part and a trigger pad, easy to incorporate, and easy to exchange to other colors once installed (removes with a small allen set screw). This trigger only works on M4 AEGs. Compatible with all "standard" M4 M16