I've only ever owned one, and I've yet to do so myself.I can't recall the last time I used the Glock brush.
I think he meant he replaced them with aftermarket with lands and grooves.Some of my Glocks don't have hexagonal barrels!
Well, then you may have pentagonal (5), heptagonal (7), octagonal (8) etc. rifling barrels.
Glock barrels with hexagonal rifling - as you can see, the bore is round and not polygon in shape.
As to OP, Glock's barrels are surface hardened like the slide and won't be harmed by softer metal bore brushes. I use bronze, copper and even stainless steel bore brush with no damage to the surface. The barrels above have tens and thousands of jacketed, plated and lead rounds shot through and cleaned with Hoppes #9 solvent and copper/stainless steel bore brush. Do you see any scratches? Nope, close inspection will show the surfaces are in like-new condition.
I bet gang bangers who stuff then in their waist band sans holster never clean them.Wait... you have to clean Glocks?
I bet gang bangers who stuff then in their waist band sans holster never clean them.
Makes me wonder how many gang bangers have found "decocker" can have painful double meaning that way? Bet you didn't know Glocks came with a decocker, did you?