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Milspec

Tips to reinstall M4 Trigger Guard Pin Ring

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I have the newer pin ring.  It's not like the C clip.  Trying to reinstall after upgrading the lifter.

It's this: 

 

 

This clip makes you want to sell your M4.

clip.PNG

Edited by Milspec
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Without a good pair of snap ring pliers, they’ll make you question god and the meaning of the universe. The one under the trigger group pin that retains it in to the receiver is a real son of a bitch to get out. 

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Lol.  I have snap ring pliers but the nose(s) was too large to get in between the little cut out in the ring end.  I guess I need to junk those and get a better pair.

My mini pair of needle nose got the job done.  I was able to get in there and spread the ring enough to slip it over.

Edited by Milspec

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The channelock brand is pretty good. The jaws are rigid so they don’t try to twist on you. They have like 5 different size tips that you can put in them. Angled and different sizes. They flip from inside to outside spawning with the flip of a switch. 

 

 

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2 hours ago, Milspec said:

Interesting you mentioned the Channelocks I was looking at those..

I have this set and they’re worth every cent. All of the various benefits SD mentions, haven’t yet found a use that this kit didn’t meet. 

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I tried my Channelocks on the trigger bushing clip and they just kept slipping off?  I'm not sure what I was doing wrong.

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Just make sure you have steady hands and hold the pliers perfectly perpendicular.

I have been using the Knipex ones for years on my German car and guns and they are way better than the Snap-on, Irwin, or Channellock. There is actually a very specific pair of pliers that you are suppose to use for these clips where the tips are together at rest with no gap; but you can still use regular circlip pliers with a steady hand and good tips.

4611G04k.jpg

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These are the ones FFT sells.  I'm not sure if these are the specific ones that you're referring to.  I ended up working it out with my mini needled nose.  Still a pain but easy for the install.

I thought the Channellock pair was legit but they didn't work for me.

 

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Do the tips look bent to you? If so you could probably warranty them. Not sure what else to tell you other than buying a different pair.

The funny thing is that the factory Benelli M4 disassembly video shows the armorer using the wrong type of pliers to remove the clip🤣. but if it works it works.

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This is one of the tools they use at the factory.

1.thumb.png.884b440b232c95f7b093c203cb7e6fa0.png

2.thumb.png.6cb7fd5612aff38ee86c1be07a0ccd84.png

Here is the 16mm slotted tool and Knipex circlip pliers they use for the recoil spring.

3.thumb.png.bcd116c1361dfe700d84a3ec0e389f2a.png

4.thumb.png.99c9e37dc85e3bf59d97ef7ed862471d.png

 

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Posted (edited)

What the heck is that one they use for the clip?  What brand is it?  I can't say I've seen a pair like that before.

With those flat thin edges on the tips I could see them engaging the clip well without slipping.

Edited by Milspec

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Those are called snap ring, retaining ring, or lock ring pliers. They are found in numerous machines like vehicle transmissions.

The pair he is holding looks to be a USAG branded one; which is an Italian tool manufacturer. You can get them with serrations for extra grip and/or dimples for a positive lock on the ring. They always open outward and always have a spring.

VBW Special circlip pliers, 170 mm, No 1530.gif | 30,000 Tools at  Tools-Giant Online Shop

085432020918.png

G409-tip.jpg

 

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