Love this grip! Looks sick! Feel great! Durable! Fit will depend on you receiver! Some it will just snap in to place! Seen many videos of this! Others you will need to dremel it on the inside a bit! Google that! For me I had to dremel to get to fit but it is well worth it! And everyone who see it loves it! Also mine has not snapped I have gamed it bashed it and so on! The only reason it would snap if with force fitment if you haven't dremeled it properly! In the end as with most custom mods work is required! Just the way it is! So I will give it 4 stars simply cuz it wasn't a direct fit! Then again few parts are so!!!!!! Should I really mark it down? It is a wicked grip! P.s. if you want a mag well grip and don't want to have to make it fit get this one http://airsoftdepot.ca/catalog/product_info.php?cPath=22_37&products_id=2095