A few days ago I took delivery of a new Colt 6400c M4 and I find myself in uncharted territory with this little carbine. This M4 is the first AR I've ever owned that I'm considering to use in a home defense role. My other two ARs (preban Colt 6601 HBARs) are set up mainly for recreational target use, although they are certainly reliable enough to be used in a SHTF type of scenario.
Now that it's here I'm trying to figure out how I want it set up. I've decided on a CompM2, an ARMS BUIS, and a Surefire forend-but I haven't given any thought at all to the trigger. Part of me says that a defensive gun should be left stock. I will be shooting this gun a lot though so I'm thinking that I should at least have the action cleaned up by a decent smith.
In my old Bushy I went through two drop in triggers and wasn't happy with them due to their lack of long term durability. I'm also concerned about reliability under hard use with an aftermarket fire control system.
What do you guys do for your CQB carbines-stock, action job, or drop in trigger?
Thanks in advance