How are C7's "Canadianized"?

Sunray what magical parts would those be as I thought when I had one that all the bits needed for FA were in the selector mech in the lower on the top of the pistol grip. AR 15s can be full auto, my issue one was, we werent issued any M16 marked ones till 1987 and that was only a handful of M16A1 hand me downs from SF.
 
canucklehead said:
I remember hearing from some CF guys at the CF booth during the Calgary Stampede a few years back (ok, like 7 or 8 years back, maybe more), and they said the C7 had over 100 improvements (or some other large number)over the US M16.
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I am never sure what is funnier, the things that moronic army instructors tell the soldiers, or the things that the soldiers believe.

I remember hearing the "over 100 changes from the M16" line when the first C7's were being modelled for the press. As nearly as I can tell, they include the redimensioning of every part to metric as an "improvement".

The C7 barrel is cold hammer forged, which is an improvement over the way Colt used to make them, but I believe FN now does their M16 barrels the same way.

A few years ago, after the Netherlands starting having problems with their C8 carbines, Diemaco changed the profile of the chamber to one that gave greatly improved extraction. They now put this into all C7 rifles, as well. But since most of the CF guns had already been made, I doubt many incorporate that change.

The C7A1 uses a unique flat top rail that is non-standard, I wouldn't call that an improvement, but it is Canadian, and one of the perils of being an early adopter of technology.

The five-slotted flash suppressor was a Canadian design change, but it happened early enough that all the M16A2 rifles got them, too.

So, I guess it all does come down to the maple leaf on the side.
 
BattleRife said:
I am never sure what is funnier, the things that moronic army instructors tell the soldiers, or the things that the soldiers believe.

I remember hearing the "over 100 changes from the M16" line when the first C7's were being modelled for the press. As nearly as I can tell, they include the redimensioning of every part to metric as an "improvement".

The C7 barrel is cold hammer forged, which is an improvement over the way Colt used to make them, but I believe FN now does their M16 barrels the same way.

A few years ago, after the Netherlands starting having problems with their C8 carbines, Diemaco changed the profile of the chamber to one that gave greatly improved extraction. They now put this into all C7 rifles, as well. But since most of the CF guns had already been made, I doubt many incorporate that change.

The C7A1 uses a unique flat top rail that is non-standard, I wouldn't call that an improvement, but it is Canadian, and one of the perils of being an early adopter of technology.

The five-slotted flash suppressor was a Canadian design change, but it happened early enough that all the M16A2 rifles got them, too.

So, I guess it all does come down to the maple leaf on the side.
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:eek:
 
CanAm said:
They have green stocks. Blends in with all the trees.
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So my question is:

Would they consider making a civilian model for the canadian market,instead of many gun dealers going and asking for permit export from the State Depatment.

Thanks.[/SIZE]
 
jobbass said:
So my question is:

Would they consider making a civilian model for the canadian market,instead of many gun dealers going and asking for permit export from the State Depatment.

Thanks.[/SIZE]
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No. They're not licensed to sell to anyone but the government.
 
So, if I got it right, there have been no ''real'' modifications to the rifle to adapt it to canadian conditions, just to improve the function of the rifle itself. So any rifle could be deployed in any climates under any conditions?? I find it hard to believe seeing the reports of M-16/M-4 in the sandbox....
 
Flash supressor

No crack or hole or wtv u want to call it, on the bottom of the Flash supressor, so when shot in prone there no dust cloud or...snow cloud.

Removable trigger guard so it could be used with mitts.
 
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When I was in the reserve 10+ years ago a fellow soldier said to me that the bolt/bolt carrier had a different shape and thus would not fit in a american M-16. Any truth to that? I tough it was BS but now that you seem to say ours are metric maybe he was half-right.
 
VZsammy said:
When I was in the reserve 10+ years ago a fellow soldier said to me that the bolt/bolt carrier had a different shape and thus would not fit in a american M-16. Any truth to that? I tough it was BS but now that you seem to say ours are metric maybe he was half-right.
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BS....

And the Flash hider has been on M16a2 LONG before we even had an C7...
 
BattleRife said:
The C7A1 uses a unique flat top rail that is non-standard, I wouldn't call that an improvement, but it is Canadian, and one of the perils of being an early adopter of technology.
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This is the big one! Most if not all C7A1s / A2s used the weaver rail with 14 narrower slots as opposed to the 13 slots of the picatinny rail. This is apparently not the case on the new C8s and the SFW. The problem with the weaver is if you wanna use after market sights or mounts (LaRue products, EoTech 553, A.R.M.S.) they may require some filing or dremal work to "make it fit". Others have just simply filed the upper.
 
Not only are their barrels cold hammer forged, they are chrome lined and have integrally forged chambers.

The Weaver rail is the original CF spec, but Diemaco makes a Mil-Std 1913 Picatinny rail too.

The LSW, CQB, CFW, C7CT and the C8 carbines have heavy barrels I'm pretty sure. C7, C8 rifles have the light contoured barrel under the handguards.
 
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VZsammy said:
I tough it was BS but now that you seem to say ours are metric maybe he was half-right.
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I believe (and I don't even remember where I heard it, so don't feel it has any credibility) they changed the drawings to show metric numbers, but didn't actually change any dimensions significantly. Parts are still all compatible.
 
There's a couple of differences between the Diemaco/Colt Canada-made C7s and C8s and the standard Colt M16 series rifles. The most obvious is that they say "Made in Canada" on the side.
http://www.stwing.upenn.edu/~wcchang/M16/diemaco.jpg
The issued C7 and C8-series rifles are select fire/fully-automatic. The original C7 and C8 used the A1-style rear sights that is only adjustable for windage. However, Diemaco/colt Canada only makes flattop receivers now. The C7A1 is a C7 with a flattop receiver and the C8A1 is a C8 with flattop receivers and extended feed ramps. Diemaco also makes a detachable carrying handle with A1 rear sights, though it is rarely seen. A small polymer backup-iron sight with A1-style windage settings is more common.

Canadian C7s and C8s do not use the MIL-STD-1913 rails that M16A4 and the M4-series use. The Canadian rail program was simultaneous with the Picatinny Arsenal and resulted in a slightly different spec. For example, Canadian flattop receivers have 14 slots instead of MIL-STD-1913's 13 slots. The rails are also narrower and there's other minor differences. Hence, the Canadian C7s and C8s do not have MIL-STD-1913 rails, though Diemaco/Colt Canada can and have made C7 and C8s with MIL-STD-1913 rails. The flattop is lower, which means it can use the standard front sight post. Colt flattop receivers require a new front sight post for the iron sights to properly work. Diemaco/Colt Canada uses a round post instead of a square post for the front sight block.

The fixed buttstocks are slightly different. The trapdoor mechanism is easier to open than a M16A2's. There's also provisions for a 1/2"-inch spacer to adjust the length.

Diemaco uses hammer-forged barrels instead of button-rifling. The C7s use the same Government profile as the M16A2. The C8 and C8A1 used 1:7 twist pencil-profile 14.5" barrels. The C8A2 uses a heavier profile barrel. It is not M4-profile, though for some reason it has a step-cut.

There's the C7A2 upgrade which has a four-position retractable buttstock, an ambidextrous magazine release, an ambidextrous selector, and a redesigned charging handle.

For the curious, the C7 is NSN 1005-21-898-7044, the C7A1 is 1005-21-909-7599, the C8 is 1005-21-898-7045, the C8A1 is 1005-21-921-2563, the C8A2 is 1005-20-913-4965, and the SFW is 1005-21-921-1160.
 
From Stevens/Ezell, "The Black Rifle", Pages 367-376.

"As noted, the C7 is essentially a Colt M16A2 with some modifications and omissions."

"Beginning at the front end, the chief differences between the two weapons are as follows:

barrel: ....

sights: ....in view of the 400 meter (600 meter maximum) Canadian range requirement the M16A2's "complex" 800-meter rear sight was considered unnecessary. Consequently, the C-7 features a standard 2mm and 5mm-aperture M16A1-type flip sight.

firing mode: ....Canadian-made C7 and C8 selector markings read S, R and Auto.

magazine: Canada will build no 20-shot magazines....

buttstock: ..."the C7 will continue the tradition of user-variable buttstock lengths.

butt trap: the C7 will use a modified door developed by Colt's which can be more readily opened than that of either the M16A2 or the A2."

Some snips there, but that is the essence of the differences, summed up in TBR.

Hope this helps,

NS
 
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