Our AR springs kit consists of the following (1x unless otherwise specified):
Buffer retainer spring
Selector detent spring
Bolt catch spring
Port cover spring
10.9 lb Magazine release catch spring
Forward assist spring
Take down / pivot detent spring (x4)
We include extra take down and pivot detent springs, as during the installation of a carbine end plate and castle nut, the spring can easily be bent.
If you're like us, you might have plenty of factory hammer and trigger pins, or just don't need them because your trigger already comes with them. It is now possible to substitute the hammer, trigger springs and disconnector springs with something that seem to go missing when needed: an extra safety detent spring (x1), and two take down/pivot pin detent springs (x2). This flexibility is a no cost option.