I know there are vast choices when it comes to triggers, but besides the trigger does it matter?
There are numerous brands of AR-15 lower receivers on the market, and most (but not all) lower receiver part kits will work with them. However, it’s important to check the compatibility of the parts kit with the specific model of lower receiver that you have, as there can be minor differences in dimensions between different models.
If you’re not sure whether a particular lower receiver part kit is compatible with your rifle, it’s always best to consult the manufacturer or retailer to find out for sure. And if you do buy a part kit that’s not compatible with your rifle, there’s a good chance that some or all of the parts will not fit properly and could potentially damage your firearm.