S&W FPC Extended Charging Handle & Pic Rail Mount with Rapid Deployment Latch

This is a game changer for my 10mm FPC. The old system was really hard to unlock to fold open, this is very simple and a major improvement. I like the new charging handle, although I am having a little issue with how close it gets to the magazines when pulling it back all the way to put a round in. But its not a functional complication more personal preference. The rail mount is perfectly place and long enough to put an optic and a sling mount with room to spare

 

A bit pricey, but overall love the product easy to assemble and keeps the charging handle from ripping my beard out. Plus it allows me to use my green dot and magnifier now as well

 

The M*CARBO FPC Max Performance Upgrade Kit installed cleanly with solid fitment and improved build quality over factory components.
The extended charging handle enhances ergonomics and provides more positive manipulation.
23-round magazine storage compatibility is reduced, but switching to 17-round magazines improved balance and resolved fitment constraints.
Initial function checks are good. Live-fire testing pending to validate performance under recoil and optic stability

After discussing this with the great people at M*CARBO, they sent me the 9mm version for my .40 cal FPC. The fit was PERFECT and it works flawlessly. Much safer too in my opinion.

 

The optic rail is great, lines up perfectly with the rail on the barrel height wise. The replacement latch is MUCH slicker to use than the stock charging handle, when folding it locks in with no effort. Unfolding is just a button press instead of the stock method of working against the entire recoil spring by pulling the charging handle or creating lots of wear by forcing it open. The new charging handle is also quicker and easier to use with either hand. The only caveat is if you have 23 round magazines in the stock it works but only *just.* When slingshotting the charging handle to get past the bolt release you have to press the handle INTO the mags. I'm not sure what other design constraint they were working against that made them not do this but: It appears there's plenty of room to move the handle forward on the slider even 1/8th of an inch. Or angle the handle slightly if the root of it needs to be that far back. That way it wouldn't hit the mags and there would be more clearance when inserting/removing mags from the stock. Maybe for gen II.

I got it for the 10mm. Seems silly that I need a small tool and 3 hands to rack a round. If I could go back I would have never bought this gun.

I purchased this to be able to install a Magnifier/DOT Combo (example: SIG Romeo/Juliet). Problem was that the rail did not give proper eye relief for using a Magnifier. Comes with everything needed. I absolutely love the Charging Handle. It is a Game Changer!

Great idea but needs some fine tuning on the charging handle as far as shape/location as it interferes with mnags stored in the stock. Also, the supplied hardware is poor quality and not even the same type of tool for install. They send you a decent Torx tool to remove the existing screws but the longer replacements for the optic mount are inverted hex, and the head is not machined very deep therefore you cannot get a good bite with the cheap little allen key provided and it is difficult to tell how tight you have it as it slips out very easily. The key is VERY soft and mine started to round off before the second screw was even tight. Why they didn't use the same type screw as original is beyond me. Time will tell if they loosen up or not