Sterling Arms R9 - Available by month end. **UPDATED**

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Using MP5 magazines instead of Glock is a massive failure.
A partially rifled barrel that isn't even threaded another failure.
The barrel isn't "partially rifled" it is counterbored. Kinda a big difference. With the giant slots in the barrel, what would you envision screwing on to the end of it and for what reason?

PCCs that take Glock mags look like AZZ. :(


Any bets on the price of the mags?
Also something I want to know. I need some ... for an MP5 :)
 
Sorry to be the bearer of bad news, but the 10rnd “pistol” mags aren’t legal, if you actually read the criminal code:
“ (b) that is capable of containing more than 10 cartridges of the type for which the magazine was originally designed and that is designed or manufactured for use in a semi-automatic handgun that is commonly available in Canada.”

There are no commonly available pistols in Canada that can use these magazines.

Also, the non-restricted version might be classified as restricted (if not a prohib variant). Back when the May 2020 OIC came out, and people were panicking about shotguns having a bore diameter >20mm, I remember seeing the rcmp use a muzzle definition that said “end of the rifling”
 
the non-restricted version might be classified as restricted (if not a prohib variant). Back when the May 2020 OIC came out, and people were panicking about shotguns having a bore diameter >20mm, I remember seeing the rcmp use a muzzle definition that said “end of the rifling”
Please explain.

The bore is 9mm (roughly 0.350"). The end of the rifling will thus be 9mm (0.350") or thereabouts. 🤷‍♂️
 
JR isn't stupid. The barrel is the required 18.5" long. The barrel is back bored to remove a portion of the rifling. It is still one continuous piece of metal and thus meets the length requirement.

Also, the guy I was responding to, specifically mentioned the 20mm bore size limit, not the OAL.
 
JR isn't stupid. The barrel is the required 18.5" long. The barrel is back bored to remove a portion of the rifling. It is still one continuous piece of metal and thus meets the length requirement.

Also, the guy I was responding to, specifically mentioned the 20mm bore size limit, not the OAL.
If the muzzle is the “end of rifling”, then the barrel length measurement from breech to muzzle would be less than the length of that continuous piece of metal.

I am not sure of the dimensions and it may be a gray area. Anyways just clarifying what was implicit in b-wing’s post.
 
Surprise! A gun store brings in a new gun, let's us all know about it...and the ridiculous CGN debates begin!

Siwash is an excellent shop that sponsors and supports shooting sports & competitions in BC.
DSSBCA members are very grateful to Siwash for its support...and for sticking it out in an absolutely horrible business environment, & taking the economic risk to bring buying choice to our community.
 
Surprise! A gun store brings in a new gun, let's us all know about it...and the ridiculous CGN debates begin!

Siwash is an excellent shop that sponsors and supports shooting sports & competitions in BC.
DSSBCA members are very grateful to Siwash for its support...and for sticking it out in an absolutely horrible business environment, & taking the economic risk to bring buying choice to our community.

Why thank you for the kind words, we do our best. We are only human. We’re not perfect,but we try.
 
Sorry to be the bearer of bad news, but the 10rnd “pistol” mags aren’t legal, if you actually read the criminal code:
“ (b) that is capable of containing more than 10 cartridges of the type for which the magazine was originally designed and that is designed or manufactured for use in a semi-automatic handgun that is commonly available in Canada.”

There are no commonly available pistols in Canada that can use these magazines.

Also, the non-restricted version might be classified as restricted (if not a prohib variant). Back when the May 2020 OIC came out, and people were panicking about shotguns having a bore diameter >20mm, I remember seeing the rcmp use a muzzle definition that said “end of the rifling”

It’s been corrected, they are 5 rounds.
 
If "end of the rifling" determined barrel length, then most all shotguns would have no barrel length.

They were specifically talking about rifle barrels, not shotgun barrels.

Based on the link below, “ The Canadian Firearms Program of the RCMP adheres to the Association of Firearm and Tool Mark Examiners definition for bore diameter measurements.”

https://rcmp.ca/en/firearms/what-yo...s-may-1-2020-prohibition-certain-firearms-and

So if the RCMP adheres to the AFTE definitions, then the “non-restricted” R9 is actually restricted, based on the definitions from the AFTE glossary:

Barrel Length- The distance between the muzzle end of the barrel and the face of the closed breechblock or bolt.

Muzzle - The end of a firearm barrel from which the projectile emerges.

Barrel - That part of a firearm through which a projectile or shot charge travels under the impetus of powder gasses, compressed air or other like means.

https://forensicresources.org/wp-content/uploads/2021/07/AFTE-Glossary-06-25-2021.pdf

So basically, barrel length is muzzle to breech face. Muzzle is the end of the barrel. And the barrel is the part where the projectile travels under pressure. With the R9, the projectile is not travelling under pressure when it enters the “muzzle brake” portion, so according to the AFTE (which the RCMP is on record as recognizing) it is not part of the barrel.

People that purchase the non-restricted R9 will get a rude awakening, and I bet JR Cox won’t compensate people like North Sylva did when they made the mistake with the prohib’d X95s.
 
Barrel - That part of a firearm through which a projectile or shot charge travels under the impetus of powder gasses, compressed air or other like means.
The projectile is traveling under the impetus of powder gasses, it doesn't mention that the pressure must remain at any level. A 22short shot out of a 26" barrel has squat for pressure behind it by the time it leaves the barrel.
 
Surprise! A gun store brings in a new gun, let's us all know about it...and the ridiculous CGN debates begin!
Sigh.


So if the RCMP adheres to the AFTE definitions, then the “non-restricted” R9 is actually restricted, based on the definitions from the AFTE glossary:

Barrel Length- The distance between the muzzle end of the barrel and the face of the closed breechblock or bolt.

Muzzle - The end of a firearm barrel from which the projectile emerges.

Barrel - That part of a firearm through which a projectile or shot charge travels under the impetus of powder gasses, compressed air or other like means.

https://forensicresources.org/wp-content/uploads/2021/07/AFTE-Glossary-06-25-2021.pdf

So basically, barrel length is muzzle to breech face. Muzzle is the end of the barrel. And the barrel is the part where the projectile travels under pressure. With the R9, the projectile is not travelling under pressure when it enters the “muzzle brake” portion, so according to the AFTE (which the RCMP is on record as recognizing) it is not part of the barrel.
You are reading in, something that is not specified. You make the assumption that the muzzle is the end of the rifling and nothing in there actually says that. The muzzle of a counterbored barrel is still the end of the barrel, not the end of the rifling, which is the crown. Yes, most barrels have the crown and muzzle at the same place, but they don't have to.

The end of a counterbored barrel is still the spot that the projectile merges from. 🤷‍♂️

You also assume that the bullet does not or cannot gain velocity when it enters that counterbored portion of the barrel. Sound suppressors add velocity. That effect is called freebore boost. It is a small effect but it still happens.

The RCMP reference to a muzzle brake is in reference to an added on muzzle brake, which they did to prevent people extending barrel length by doing a US style pin & weld brake. Porting a barrel does not render that portion a muzzle brake for numerous reasons. The first being that the porting does not occur at the muzzle, but before the muzzle.


The projectile is traveling under the impetus of powder gasses, it doesn't mention that the pressure must remain at any level. A 22short shot out of a 26" barrel has squat for pressure behind it by the time it leaves the barrel.
Cartridges with small powder charges, used in long barrels may actually produce less velocity because the drag from the rifling exceeds the minimal gas pressure near the end of the barrel.
 
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