The screw is impossible...google online before you buy this! - Magpul Polymer Trigger Guard

Magpul needs to PULL this or modify the install. Stripped mine very easily with a 1/16th then found so many forums about how bad this product install is. Found this post, "In fact, the aftermarket Magpul Enhanced Polymer Trigger Guard installation kit is so poorly thought out, there is a cottage industry (ebay) developed around "enhancing" the enhanced polymer trigger guard so it can be installed without stripping out and potentially damaging your receiver during the filing and cutting process to get the darn thing out. How nuts is that folks! An aftermarket - for an aftermarket part!!! Mr Magpul do you have your ears to the tracks. Can you hear the rumbling?"

RUN from this part!