Colt Canada IUR (Integrated Upper Receiver) for Civilian Sale

Colt Canada IUR Upper

Colt Canada made the surprise move in 2014 of releasing their first rifles to the domestic civilian market with the SA 15.7 and SA 20. Now a new run of Colt Canada gear is about to arrive on Canadian shelves: the IUR or Integrated Upper Receiver. These are the only IURs that have been released for sale to the public.

The IUR creates a free floating tube which removes all external influences from the barrel, with a full length, contiguous top rail.

Colt Canada has stated that these are overrun from a military contract. While they aren’t saying which contract, it seems likely to be the Danish run of 5000 M/10 C8 IUR carbines.

Colt Canada IUR Integrated Upper Reciever

In an unusual move, the distributor O’Dell Engineering, has paired the Colt Canada IUR uppers with American Tactical Gen 2 Omni polymer lowers. O’Dell has a number of certified armourers who service the Canadian Forces C7 and C8 rifles, and have explained that they chose the Omni Gen 2 specifically for its steel reinforcing. From their in-house use they seem to feel it’s an acceptable lower and a way to keep the entry level costs down on an otherwise highly desirable rifle.

Because Colt Canada is a NATO spec manufacturing facility, they will never fit aftermarket parts themselves. Literally: no Magpul etc can enter through their doors. In this case they supplied the uppers to O’Dell who picked the parts and assembled the rifles.

A lone upper (no BCG) has an MSRP of $1099 CAD, while the complete rifle has an MSRP of $1599 CAD

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Edward O

Edward is a Canadian gun owner and target shooter with a Bachelor’s Degree in Journalism. Crawling over mountains with tactical gear is his idea of fun. He blogs at TV-Presspass and tweets @TV_PressPass.


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  • iksnilol

    The feeling when you are not an AR guy but you are the first to comment on a post about a new AR. I have that feeling now.

    Isn’t the AR restriced by name up in Canada?

    • Mouldy Squid

      Yes. All ARs are restricted in Canada. You must have a Restricted Firearms license to own one.

    • UCSPanther

      ARs are treated the same as pistols here. In that, you can only shoot them at approved ranges, and they are all treated like that, regardless of barrel length.

      At least though, the barrel length isn’t a problem with restricted firearms and you can have stocks on the SBR versions.

      • David Sharpe

        I really hope the NFA petition works. I want to buy an 18.6 inch AR!!

        • UCSPanther

          I would jump at the chance to build a M16A1 clone myself.

  • Rey

    Canada gets all the cool stuff…

    • David Sharpe

      Rarely.

    • Steve Martinovich

      Huh? says a Canadian…when did that start?

    • UCSPanther

      I wish I could legally own a Galil ARM and an older-gen AR180 in Canada…

    • TracerTong

      Sure, with the exception of most service rifles by name, standard capacity magazines, suppressors, and full-autos. Yep, looks like Canada gets to play with the cool toys!

    • Cedar_92

      Just cheaper ammo really.

  • toms

    Why cant colt USA innovate and why do our Canadian cousins get better quality gear than us?

    • Joshua

      Because we haave the civilian market offering an ungodly amount of accessories to slap onto our rifles.

      The IUR was for those who don’t.

      • toms

        Pretty sure the canadians have all the same accessories we do.

    • jg

      It seems to basically be an Aero Precision C.O.P. without the modularity. Nothing innovative here.

      • toms

        Was referring the canadian Mil spec offering rifles VS our colt M4a1 rifles. I have no interest in this rifle just noticing the stagnation in Mil suppliers.

        Our American mil spec= non free floating rail, carbine length gas, non-hammer forged barrel, A2 birdcage, and crappy stock.

        offering above= Break, free float rail, QD mounts, Hammerforged barrel, Midlength gas.

        Colt canada produces a better rifle than Colt USA, unacceptable.

    • opi

      Because finally we as canadians finally gef to purchase a proper canadian made AR

  • Ethan

    The Civilian market – also known as Colt’s market of last resort.

  • Chris Durkee

    What are the benefits of a integrated upper?

    • Tom

      No ‘join’ between the rails you have absolute freedom to mount optics were you want. Though in truth I doubt this is an issue for mots people. The main advantage I can think of is strength, the reason they came up with this design was that grenade launchers could be attached entirely to the rail rather than the barrel. Personally I think it looks a lot nicer

  • Are uppers treated as complete firearms according to Canadian law?

    • Mouldy Squid

      No. Like the US, only the lower is considered to be a firearm.

    • David Sharpe

      No, only the lower requires a PAL.

  • Bob Jones

    It’s/its/your/you’re/they’re/there/their. The Firearm Blog: Guns not Grammar. (And your profile claims a Bachelor’s Degree in journalism!) Seriously guys, for the umpteenth time- you reduce your credibility every time you don’t proofread your articles. You want to be taken seriously by non-gun folks, start writing like them.

    • TracerTong

      …or how many times they spell “Solider” instead of “Soldier”

    • I only had one wrong it’s! Still: this is why I need to stop writing on mobile.

      • Bob Jones

        To err is human- that’s an honest mistake. All we keep saying is there needs to be oversight, like on any professional or semi-professional website, before you guys hit the damn publish button :). The fact that a writer on this blog can write a screed on his *mobile* device and instantly upload it is kind of f*&$d. There should be a review process, if only 10 mins of a designated proofer going over the article and the approving it. You guys write these articles as if the site’s a bunch of kids with a tumblr account.

  • Tom

    Could someone explain regarding the not fitting third party parts? Looking at Colt Canada’s website both there proposed upgrades for the UK and Denmark feature what looks suspiciously like Magpul furniture.

    • The way it was described to me: as a Defense manufacturing plant they have to maintain strict tolerances that anything coming off their line could be fit onto any of their existing guns in the field, and that this can be tested by a random on site inspection that occasionally happens. The example described to me was both magpul and a raptor charging handle, and that bringing those sorts of aftermarket things into the plant could jeopardize their manufacturing standard and by extent their contracts. Here’s an example of something similar: http://www.dtic.mil/ndia/2011smallarms/WednesdayInter12315Pellegrino.pdf

      • Tom

        That makes sense but I had thought Magpul at lest were considered milspec.

        • Some parts, sure. But say you have an M16A4 and I give you one of these: https://www.magpul.com/products/m-lok%E2%84%A2-hand-stop-kit

          • Tom

            I see the point, I just do not see why they are forbidden from using third party parts (I trust its anything that is not part of the TDP) providing they are milspec. But then again this is the government so that explains everything.

  • WFA

    Anyone able to explain how the upper receiver/rail are manufactured?

  • noob

    if the integrated full float rail system is machined as part of the upper, will gunsmiths need a special tool to get to the barrel nut if you wanted to upgrade the barrel?

  • Mmmtacos

    “Eh, we got all these spare rifles from that one contract. What do we do with them?”

    I know, let’s sell them to the civilian market.

    “What are you, nuts!?”

    • MPWS

      It’s just fancy “uppers” and this is the point. Lowers can be internally recycled. Everybody involved his happy.

  • MPWS

    That O’Dell seem to made an o’ Deal. Bought legal ‘no weapon’, added his part and – voila! Smart fella, isn’t he – and good for him.

  • Esh325

    I would say probably the most exciting part of this rifle is the polymer lower receiver. Colt Canada has a good reputation for building rifles and to see a serious manufacturer using a polymer receiver might set a trend in the industry. Honestly the AR lower recever always seemed like a part that could be made from lighert material without sacrificing weight.

  • Phil

    (Just to be fair and clear for all; I am the guy who’s company is building this rifle! I think its only fair everyone know that. Also if you have a serious question on the rifle or the IUR feel free to message me and I will try to answer as best I am able given we are building and shipping lots of rifles here just now!)

    Thanks for the interest and support. We are very proud to be have been able to secure some of the Colt Canada Integrated Upper Receivers for our LMSR2 rifles. The LMSR2-IUR is our “Super Premium” version of the Lightweight Modern Sporting Rifle Gen 2.

    The IUR we are able to bring to market is the same as has been sold to some of Canada’s Allies and this particular one has, I think, the best combination of ergonomic features out there. The side rails are slimmed and the interior is lightened in ways that do not compromise user needs but do make it more comfortable to hold and carry. It also retains some “cool features” such as the grenade launcher recoil lug (we can actually have GLs up here…) and the C9A2 flash suppressor which per Colt Canada only has about 30% of the flash signature of a standard A2 muzzle device and which is specifically designed not to flash up into the line of sight thus adversely effecting NV sights. It has reinforced sling attachments, reinforced charging handle latch slot and much more.

    I think the most useful feature is the hardest to see and that is the Improved Carbine Chamber. I am told this chamber has been tested to be the most reliable carbine available in trials held at NATO test labs under a variety of environmental conditions.

    The one sad part is this is a ITAR controlled item and thus can not be sold for export by us. It is a Canada only item. I am really sorry for this as so few people outside the Canadian Forces and a very few lucky guys like me have had the true experience of shooting these incredibly GOOD rifles. I wish you guys in the US could get some to appreciate just how good the M16-AR platform can be. It doesn’t need pistons, NiBor coatings, etc. it just needs to be built right and with the right thoughts applied. This is a truly amazing rifle and we are very proud to be able to offer it to our Canadian customers.

    Again thanks to The Firearms Blog for another great story.

    • Hey Phil! Thanks for taking the guns to the CSAAA show and letting us kids play with them! It was great to see O’Dell there!

  • Uzim16

    I luv our rifle