Spring kits - Ruger or on your own, and at your own risk.
Guide rod assemblies - Other than from Ruger, none known.
Sights (I found - HighViz, TruGlow, WilliamsSights)
Extended Mag release - None known, but you could have one made.
Firing pin replacement - Stock Replacement - Ruger. Aftermarket, none known, no knowledge of intentions to have one made aftermarket.
Striker spring, cup and shaft replacements - Ruger.
Upgraded trigger bar Ghost Inc, product not yet released, but in the final stages
And any other aftermarket parts that can get the 25 lbs trigger to 3-5 lbs
:shock: See Upgraded Trigger Bar
Josh