TM416D Stock Buffer Tube Loose

[Cjs]

Hi, my TM416D buffer tube is loose and twists, I haven’t even brought it to a game yet. What is the best way to fix this? Is this normal? 

 

[Paul72]

The lock ring circled in red need to be tight to lock the tube in position, 

if it’s new / just bought I’d think about returning  it to be tightened as you need a special tool

View attachment 83734

 

[SeniorSpaz87]

That tool is an AR buffer tube wrench, also called an AR wrench on the other side of the pond if youre looking for one.

 

[Emergencychimps]

I would advise any ngrs owner to have an AR wrench. The recoil/wobble causes stuff to get loose surprisingly fast. They can generally tighten the barrel nut as well (which on recoils needs doing occasionally).

For the castle nut, it's needs tightening but I'd also recommend some threadlock (can't remember if it's blue or red). 

I'd also recommend checking other screws and pins periodically as well, at least after every game day for the first 3-5 game days you do, mag catch, the ones in the stock tube, the pins in the lower receiver. Just a standard side effect of the recoil. 

 

[AlphaBear]

This is what you need...

https://eagle6.co.uk/shop/catalog/product/view/id/231/s/laylax-first-factory-wrench-tool-for-m4-hk416-next-generation-recoil-shock-series-m4-gbbr-series/

 

[Diemaco]

It's the blue threadlock. The red is permanent!

I used the blue on the buffer tube of my GBB M4A1. Not has a problem since. 

Edit: just looked on the Henkel website, and they recommend the purple loctite for low strength metals like aluminium and brass (and presumably pot metal too).