SMITH&WESSON M&P9 FULL SIZED 15 RD 9mm (NJ & CO COMPLIANT) 39498 [39498] - $34.95 : Greg Cote, LLC
Also sells them get on the wait list and order ASAP when you get the in stock email or your out of luck
Here are the Hiviz for the M&P22 HIVIZ Front Sight S&W M&P22 Steel Fiber Optic 6 Interchangeable Lite MP2012 - New Handgun sights - Handgun Sights - Products
clean all the grease out of the lever hole pull out the guide rod and use Q-tips to get the grease out.I had a hard time with mine until I got all the grease out when its dry it pulls right out. help
Mine also went right in. I think the trigger feels more solid and just feels better.I also feel that apex trigger much safer in design than the hinged S&W trigger if something should snag the trigger.
I don't think you are supposed to lube the striker.The lube will get dirty and bind up the striker.I would try to buff and shine the striker spring as best I could to remove some friction and leave it dry.
The stock M&P trigger return spring is a little lighter than the stock SD spring but stronger then the apex spring and fits the gun just fine and is only $3
I tried to order a spare trigger return spring for a SD9VE and the S&W rep told me that they don't have a parts list yet for them and you cant order any spare parts.The gun has to be shipped back to them for any parts to be repaired .This was a month ago when I called.