Thread: Gun city quality firearms…. Yea na

Originally Posted by blip

It just seems an obvious thing to do in checking the threads Its really not that hard. The people I shoot with know their firearms, they know what thread is on their barrel, then all I do but most probably dont do this, is inspect my suppressor what Im looking for is damage etc (I have had one that had a little bulge in it and it got thrown away) give it a shake look through it and make sure its not blocked and hey there's the thread its got stamped on it does it match my rifle? Then screw it on being careful not to cross thread it, seen that done a few times. and its really that easy. Yea yea I know you shouldn't have to.........but look what can happen if you dont.

The thing is, it would be fair to say most owners of a threaded barrel wouldn’t know by looking at it, what thread it is, if I ask a gunsmith to put a 14x1 or a 15x1 thread on a muzzle, I would assume that the thread is correct because the suppressor fits.

I had had four different muzzles threaded successfully before I found out that the gunsmith should have the suppressor at hand to do the job. And that was from a highly reputable gunsmith who I admittedly put in the situation but there was no mention of it at the time.

I guess one takeaway from this thread is that it is important to know what you’re buying and fitting together, satisfy yourself and don’t take the word of anyone who has a financial interest (this applies across the board not to only one retailer) in reassuring you. Yes items may have a good warranty, but a paper promise doesn’t mitigate the loss of driving hours to a range and firing upwards of $50 worth of ammunition to find out something is broken. Or worse still, having gear fail after helicoptering into somewhere in the South Island.

Originally Posted by longshot

The thing is, it would be fair to say most owners of a threaded barrel wouldn’t know by looking at it, what thread it is, if I ask a gunsmith to put a 14x1 or a 15x1 thread on a muzzle, I would assume that the thread is correct because the suppressor fits.

I had had four different muzzles threaded successfully before I found out that the gunsmith should have the suppressor at hand to do the job. And that was from a highly reputable gunsmith who I admittedly put in the situation but there was no mention of it at the time.

I guess one takeaway from this thread is that it is important to know what you’re buying and fitting together, satisfy yourself and don’t take the word of anyone who has a financial interest (this applies across the board not to only one retailer) in reassuring you. Yes items may have a good warranty, but a paper promise doesn’t mitigate the loss of driving hours to a range and firing upwards of $50 worth of ammunition to find out something is broken. Or worse still, having gear fail after helicoptering into somewhere in the South Island.

The whole "suppressor needs to be in hand" to cut muzzle threads is due to piss poor understanding of thread geometry and quality control from suppressor manufacturers. There are thread standards for a reason and in my experience only a couple of manufacturers get this right. As a result, if a muzzle thread is cut perfectly to spec, it can still be loose as hell on a poorly made suppressor, hence many smiths insisting on needing the can in hand.

We should all be using a taper behind the thread instead of a square shoulder, this would negate all requirements for accurately cut threads. The locking and alignment comes from the taper and the threads are used to just lock and unlock the taper.

Unfortunately, getting worldwide manufacturers to agree on a standard for something like this is pretty much impossible.