Prometheus Straight Sigma Trigger M4 AEG Color:Silver rear stock and twist the

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

Fits the USP and the USP Compact

The G19x is a special gun that only comes in tan color

sized head (kids to adults)

This is the perfect platform for the New DXDAB Micro Red Dot Reflex Sight (also included in the USS)

Prometheus Straight Sigma Trigger M4 AEG Color:Silver rear stock and twist 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