M*CARBO Brotherhood

Aluminum Trigger Guard Sticking Open

I just completed my MCarbo upgades, (trigger job, stainless feed ramp, aluminum peep, recoil buffer and charging handle and aluminum trigger guard).

For the most part installation went smoothly (lost the safety spring as it went flying somewhere :angry:)
and I am happy with everything except the aluminum trigger guard.

It seems whenever I fold the gun and then unfold, the trigger guard won’t fully close and I have to manually pull it down into place. The trigger guard will sometimes fully close if I quickly slam open the gun. The plastic stock trigger guard closed every time.

I am sure the spring went in the right way as shown in the video. Does anyone else have this problem or did I install something wrong or is it something that has to break in?

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@jimber27 I do not have to “slam” mine to get it to latch but I would put a little Super Lube (PTFE) on the front handguard notch that the trigger guard locks into or rubs against when closing, that made mine lock into place easier.

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Mine does the same, though I don’t have to slam it open exactly. A relatively smooth and affirmative opening does it, just sticks if I unfold it slowly.

Hasn’t bothered me really, I just fix it manually when it happens.

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I actually did this as well, but forgot to mention, unfortunately I didn’t notice a difference.

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In a way, I think that is good. Means you are getting a good tight lockup. When I added the upgrades to mine, it did the same thing. Over time and with use, it has loosened up a little. The new M Series S2K I just got is also a little tight. I’m sure with more use, it too will loosen up.

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@jimber27 I agree with @Texprep now that I think back to first installing all MCARBO upgrades that the latching/locking was much tighter and has loosened up over the past year. As you are relaxing or watching TV just open and close it repeatedly to “wear it in”. My sister just got a over/under shotgun that is hard for her to open and close so I told her to just do that repeatedly every evening to “wear it in”.

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Did all the upgrades on mine and the trigger guard opens and closes flawlessly. OTOH a buddy who bought a SUB2000 the plastic trigger guard won’t close fully unless you push it into place. He is going to have me do his upgrade when he has a bit of cash to buy the upgraded pieces.

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@jimber27 In the "Search Topics, Posts, Etc ", type in “adjust barrel”. Check out posts #74 to #104 for the adjustment of the trigger guard to the barrel nut.

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Thanks, did some research about the barrel nuts relation with the trigger guard. I checked my barrel nut and its pretty tight, can’t move by hand im guessing lock tite. I think I’d rather keep it tight, and try just breaking the gun in a bit its still brand new.

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Mine does the same thing. And, just a little finger pressure on the bottom of it and it snaps right in place.

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Tried the search function and didn’t find a “adjust barrel” result. Any chance you could
provide a link?
Thanks,
Jack

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@CaptainJackhttps://forum.mcarbo.com/t/sub2000-upgrades-what-have-you-installed-what-s-your-opinion/2207 Check out posts # 74 to 104. Hope this helps.

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Thanks Don, got the page finally. Great info on that thread.
Jack

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The stock trigger hits the the aluminum Mcarbo trigger guard. Gen2 S2K

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If you went through the effort to put on the guard, you shouldve just put a trigger in it too. Just giving you a hard time for fun… but kinda serious… or not… You pick :joy::laughing:

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@smokinJoe If it’s just the tip of the trigger hitting the aluminum guard just sand or file it down a smidgen. But I think you would like Mcarbo’s straight or curved trigger a lot more.

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well, Mcarbos’s flat trigger is also too long, they have a new design guard to allow that and a shorter flat trigger, going with the curved.
Sorry @Stircrazy, I’m not one who has toi have every mod available, i choose them wisely and what is actually needed, though I did decide to upgrade the whole trigger group, one thing leads to another in this case and all for good.
I’d like to say Kel-tec spends millions on R&D and testing, but apparently they do little testing of design or production sad to say, so we must upgrade with better parts that are thought out.
I am disappointed that Mcarbo sells me the old trigger guard that does not work with their own flat trigger or stock, and tells me that the new design trigger guard fits both now, but won’t do an even exchange and I JUST bought the trigger guard like 2 weeks ago, that is NOT standing by your product 100%, that is not right @Chris Nelson. Just calling you out on this, so I have to eat a trigger guard I JUST bought and buy another, or go with another trigger and not use stock without cutting it down, which I did.
Not happy about this at all

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Dunno your particulars, but I’ve been running Mcarbo guard with Mcarbo flat for 2 years now.

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Got the aluminum trigger guard, with stock trigger, which hits it 3/4 the way back. ordered Mcarbo flat trigger and rest of the trigger group offered. Then got a phone call saying the flat trigger has been redesigned and so has the trigger guard because of hitting. So changed order to curved trigger but it already shipped, she brought up trigger guard is being redesigned to avoid strikes with flat trigger (and stock trigger maybe) I asked if my 2 week old, newly purchased trigger guard was eligible for free replacement since it was suffering the issue stated, by her and I was having, she asked her supervisor who said they didn’t want it back because it was being discontinued and they wouldn’t be able to sell since it was opened and already installed and not in package, but offered a discount on the new design instead.
That is not a 100% guarantee by any means. @ChrisNelson

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Agreed. Again, it is contrary to my experience. But what you describe is poor.

@ChrisNelson

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