Pinning/welding a muzzle device on a barrel doesn't count towards barrel length in Canada. Nor does it count if its integrally machined.
Barrel length has to do with where your lands/grooves end.
Wrong, the muzzle device counts if its machined into the barrel.
If it is machined where there are still lands/grooves, yes.
IE: Ported Glock barrels
If the muzzle device is machined, part of the barrel, but after the lands/grooves, it doesn't count.
A few companies tried importing AR barrels with an integrated muzzle device. Barrel would be 18.6", but 2" of that was the muzzle device (give or take). Because the way they were machined, it wouldn't pass our beloved RCMP.
You are 100% wrong and should really stop embarrassing yourself. Barrel length has absolutely nothing to do with the length of the rifling, there is zero mention of that in any of the laws. Barrel length is the distance from the breech face to the muzzle, and is the measurement of continuous material between them. If you have a barrel that’s 20” long, and for some reason you decided to counterbore out 10” of the rifling, the barrel is still 20” long. If you welded two 10” bars end to end, then made a barrel out of it, technically the barrel would be 10” long (though nobody would ever know or bother checking that). If you had a 10” barrel, and permanently affixed a 10” extension, the barrel would only legally count as 10”.
Your assertion that some 18.6” AR barrels were blocked from import because of an integrated muzzle device is ridiculous. I don’t necessarily doubt that the idiots at CBSA did that didn’t permit them, but it certainly has nothing to do with the law.
As for OP, no, you cannot in any way extend the legal barrel length by adding material to it. Theoretically you could stretch the barrel to the desired length, but that would have all sorts of unfortunate consequences, and may not even be physically possible before the barrel material fails, or the bore constricts to a dangerous point. Your only viable solution is to have a new, longer barrel installed, with or without an integrated muzzle device.
Stop embarrassing yourself.
Criminal Code section 84:
Barrel length
(2) For the purposes of this Part, the length of a barrel of a firearm is
(a) in the case of a revolver, the distance from the muzzle of the barrel to the breach end immediately in front of the cylinder, and
(b) in any other case, the distance from the muzzle of the barrel to and including the chamber,
but does not include the length of any component, part or accessory including any component, part or accessory designed or intended to suppress the muzzle flash or reduce recoil.
A machined flash suppressor on a barrel is not a component or an accessory.
If it is a continuation of the rifling.
Stop embarrassing yourself.
"Criminal Code section 84:
Barrel length
(2) For the purposes of this Part, the length of a barrel of a firearm is
(a) in the case of a revolver, the distance from the muzzle of the barrel to the breach end immediately in front of the cylinder, and
(b) in any other case, the distance from the muzzle of the barrel to and including the chamber,
but does not include the length of any component, part or accessory including any component, part or accessory designed or intended to suppress the muzzle flash or reduce recoil."
Porting a barrel is different then attaching a muzzle device.
You could port a 18.6" barrel and be fine, but indexing a muzzle device on a shorter barrel to make it 18.6" DOES NOT count towards the barrel length.
If it is machined where there are still lands/grooves, yes.
IE: Ported Glock barrels
If the muzzle device is machined, part of the barrel, but after the lands/grooves, it doesn't count.
A few companies tried importing AR barrels with an integrated muzzle device. Barrel would be 18.6", but 2" of that was the muzzle device (give or take). Because the way they were machined, it wouldn't pass our beloved RCMP.
Your reading comprehension is terrible and you’re not even consistent in your argument. Nobody said that adding a muzzle brake is acceptable. But machining a muzzle device directly into the barrel steel is 100% permitted and absolutely “contributes” (or at least not detract) from barrel length.
If it is a continuation of the rifling.



























