I purchased the Ghost 3.5 lb trigger pull bar and the Ghost extended slide release great products and life time warranty. Plus at a good price from Amazon quick delivery and installing these two up grade are simple takes about 20 mins to install both. I do suggest watching the how to video's on You-tube. They break it down simple and shows a trick installing the 3.5lb trigger. Now with the trigger pull it states 3.5lbs it's not the company just changed it to a 4.5lb it actually runs about 4.2lbs pull. This was great I was worried about putting the 3.5lb on my G26 with it ibeing my EDC and it's size, because it is in a ankle holster or a small of the back holster and some times in the console of my vehicle or jump bag and I have big hands. I was worried with a trigger pull this light and having un-planned discharge, now on my G21 I have 2 good hosters and not as worried larger frame and it isn't abused as much. Well with this trigger pull I have no worries and do feel if it had been a true 3.5lb trigger it would have been a problem for me and my G26. It is hard to believe and explain the difference this trigger pull made on the range. With trigger pull problems, staying on target and hitting where you are aiming plus and it was a second concern of mine you can still hear and feel the trigger reset. As for the Ghost extended slide release another great product and really make a difference charging the weapon. It does not stick out to the point to snag but will get you back on target a second or two quicker. For the price of these two upgrades and the ease to install plus the life time warranty if you have a Glock you won't regret it I promise you that. Like I said I got mine from Amazon I have no connection with this product or the sellers other than being a happy customer. GHOST 3.5 lb. Standard Trigger Control Connector for Glocks. "TRIGGER" by Ghost Price: $14.97 Ghost Inc Glock Extended Slide Stop Release 17 19 20 21 22 23 24 26 27 28 29 30 31 32 33 34 35 37 38 39 by Ghost Price: $18.99 Now here is my next upgrade I ordered and these will not last long and Glock will not sell tem to the general public. I have been looking for these for a while and could not believe I found them on Amazon. These do work I seen them in action at a Glock show where they were doing L.E.O. presentaions. If you order these each pack has two peices the package says plugs but each package only does one gun I ordered 3 packs to do all my Glocks. GHOST Maritime Spring Cups for Glocks Price: $8.95 One other thing as you upgrade your Glocks save the parts I have a small box I carry in my Bug Out bag with these parts so that way if some thing breakes I have a extra.