M4 Gen 8 Inner Barrel Loose

Hi Guys

I am pulling apart my M4 Gen 8 to modify to a 4inch guard and turn into a CQB blaster but when stripping down I noticed the metal inner barrel is loose and can be twisted. My question is, is that normal or are they supposed to be fixed and unable to be twisted?
Thanks

Yeah some of them twist because they’re inside a sleeve that’s inside the t-piece
All you need to do is wack a bit of glue in it :+1:

Arrgh cool thanks for that dude

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