Congrats on your new H&K!
Both are very reliable nightsights. Just try and find the manufacture date and purchase a late production one. I believe both are 10 year warranties on the brightness.
To the best of my knowledge, Meprolite is affiliated with the Kimber group and all of the Kimber nightsights are Mepro's unless otherwise ordered.
Trijicon branding is better since they have secured many LE and military contracts.
You will love the gun.
What part of Illinois are you from? I grew up in the suburbs of Chicago but have since moved on and headed South for school.
Evil is always possible. Goodness is a difficulty. - Anne Rice
I'm from the Aurora/Naperville area. I do most of my indoor shooting at MegaSports in Plainfield.