Sam, the manager over at MS-Infinity has mailed in details of their PTS trigger guard:
Hi Arnies, How are you? Magpul Professional Training & Simulation Division just launched a new product – Magpul PTS Enchanced M16/M4 Trigger Guard.
This is a patented product which fits Marui, Classic Army, G&P, G&G and Hurricane Airsoft M16/M4 receiver.
Magpul Enhanced M16/M4 Trigger Guard Description: Magpul Enhanced M16/M4 Trigger Guard – a drop in replacement for the standard AR15/M16/M4.
Patent Pending design allows for gloved use without having to fold down guard Please find the attached photos for your reference. Regards Sam, (Manager, Magpul Professional Training and Simulation Division)