Why, Colt...why?

Discussion in 'AR-15 Discussion' started by PrimePorkchop, Dec 27, 2011.

  1. PrimePorkchop

    PrimePorkchop New Member

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    I'm pretty sure I know the answer, but I found out today that "aftermarket parts" won't fit my Colt LE6940.

    Apparently, everything is proprietary on a Colt Ar15? For Christmas I got four 42-round promag magazines and a cool ejection port cover (says "let it rain!!")

    The magazines jam every other shot and the cover won't install (needless to say, i don't think the cover CAN be installed...this port cover is unlike anything i've seen in online tutorials of how to change port covers)

    I'm pretty sure the reason is simple - if you change up the gun, they want it to always be "Colt"....just wish I had read that part of it before deciding on this gun...might have gone with Rock River instead.

    Though I guess it's not all bad, i'll just have to find some Colt-specific aftermarket parts...anyone have any recommendations?
     
  2. AgentTikki

    AgentTikki New Member

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    Its that damn proprietary upper. Really strange that even the ejection port cover is proprietary..


    The magazines tho, shouldn't have any issue with your Colt. Maybe you just need to break them in a bit? What kind of issues are you running into? Can you be a little more descriptive? Have you check out the feed lips? Anything out of ordinary?
     

  3. FCross7

    FCross7 New Member

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    The magazine issue is probably because they're made by ProMag, not because it's a colt rifle. ProMag isnt know for making the highest quality stuff.

    -Fred
     
  4. PrimePorkchop

    PrimePorkchop New Member

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    Sorry, re-reading now, i realize how vague I was. I took some pictures to help describe the problems

    As for the magazines, see the first picture. The mag on the left is the "Colt" 30 round mag, and the one on the right is the Pro Mag 42 round. The *ONLY* difference I can find is the backend on the colt is quite a bit more "open" than the one on the pro mag.

    Not an exaggeration but literally every other shot in the pro mag was a jam. The next picture is what the "jam" was doing to my rounds (i don't know if that helps identify the problem or not?)

    And the last picture is what my ejection port cover setup looks like...at first I thought I could simply unscrew those two pin looking things on either side of the cover and replace the cover.

    But I used the smallest allen wrench in my complete set and it's still just a hair too big to fit in that hole.

    I have no idea how to switch it out, if it can even be done?
     

    Attached Files:

  5. PrimePorkchop

    PrimePorkchop New Member

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    that was my first thought too, but they worked flawlessly in my buddies Rock River LE1040
     
  6. JonM

    JonM Moderator

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    bad mags will work differently in different guns. promag magazines have a less than steller reputation for good reason.

    as for the door cover its not a standard upper design its a proprietary monolithic upper. when you go with something like that you limit your aftermarket choices. thats why the bushmaster adaptive combat rifle (acr) isnt very adaptable at all :)

    it isnt because colt wants to keep it colt its because it isnt a standard milspec upper your trying to put milspec standard AR15 parts into
     
  7. PrimePorkchop

    PrimePorkchop New Member

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    well i've already decided to get some P-Mags from Magpul...already read several other places online from people who own the LE6940 and they love them.

    What I cannot find, ANYWHERE, however, is how to replace that ejection port cover. Anyone have any idea at all?

    I have to say that, at this point, im wildly disappointed with my purchase...i'm hopeful this one minor thing can be done...but time will tell. Special tool, perhaps? No matter what I type into google, i get all the same nonsense "buy this" "Go here to read about colt handguns" ... search engines are total crap these days unless you know the exact wording required to get what you're looking for, and if you knew what that exact wording was, chances are you don't need a search engine to do what it is you're aiming for.
     
    Last edited: Dec 27, 2011
  8. AgentTikki

    AgentTikki New Member

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    Have tried contacting colt? Looks like you may have to rmove some roll pins....

    Also what's the return policy on those mags you bought?
     
  9. Quentin

    Quentin New Member

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    Hey AgentTikki, I replied to your PM but your inbox is full so I lost a long reply. So boiled down here to ... yes! :D
     
  10. Quentin

    Quentin New Member

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    I also blame the magazine not the rifle. As far as why the ejection port cover is different, it's because of the monolithic upper receiver. This wouldn't be an issue with a standard Colt as JonM said above.

    Use proper magazines, lose the kiddie dust cover and be proud of a fine rifle that doesn't need ninja crap to be awesome! :D
     
  11. PrimePorkchop

    PrimePorkchop New Member

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    Im able to return the magazines, but my buddy is going to give me some money for them and he'll use them in his rifle, they already worked fine for him. I'll just buy some Pmags and be done with it =)

    And im still waiting to hear back from Colt. I emailed them, but i don't think they've had long enough to reply. If I dont hear anything by friday ill give them a call. I'm sure those pins have to come out, but I cant figure out how to remove them (no tool I own will fit in them)
     
  12. mjkeat

    mjkeat New Member

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    I would agree. Seems like a lot of work and trouble.
     
  13. mudflat

    mudflat New Member

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    Mag Work!

    Porkchop,
    Your new mags have thicker walls and sharp edges. The edges need to be gently filed or sanded down to a fine curved edge. Also, try opening the mag a thousandth or two to allow the round to easily move up and out. But, try the edge smoothing first.
     
  14. rifleshooter474

    rifleshooter474 New Member

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    I read a lot about the Colt AR-15s and have seen many pay a really high price for them at firearm shows and gun stores. I know they are known for being one of the best, but their AR-15 sold to the non military are not Mil.spec. rifles, they get no military inspection. So IMHO they are no better then many other AR-15s selling at a lot lower prices.
    I bought a S&W 15T six years ago and it's been super good in shooting and not having any problems. Only Mag problem I had was when I tried using the Magpul Mags. they just would not lock in, Magpul offered no help other then for me to grind my Mag well to make it work.
    This I did not care doing as all my standard AR Mags from many Mfg.s and Lancer Mags worked great.
    When I bought another AR-15 a LM&T 2000 Defender it worked great also. so I guess I have not missed anything with not buying the colt, except their high prices.;)
     
  15. theboarbuster

    theboarbuster New Member

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    The Pro Mag is sitting to low or your ammo is sitting to low in the mag. From the pic it looks like the ammo is low in the rear.
     
  16. rifleshooter474

    rifleshooter474 New Member

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    I got a ProMag in 7.62x39 with my AMD-65 for the 922 compliance. I loaded it up full 30rds put it in Mag well went to do other things.
    We heard this big bang sound and heard things hitting the walls and floor.
    The ProMags base has just busted off sending all 30rds and the spring and follower flying.
    Needless to say I don't use or allow a ProMag anywhere near me. I use the ComBloc steel 20rds Mags at range, bought a Tapco for the 922compliance but don't use it.
    Real friends don't tell their real freinds to buy ProMags.;)
     
  17. pagj17

    pagj17 New Member

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    Careful, using the combloc mags means you're out of compliance sir, and if it were i, I wouldn't take the risk...
    But, it's not my call:)
     
  18. pagj17

    pagj17 New Member

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    PM sent with link to directions at (b)arfcom.
     
  19. fsted2a

    fsted2a Active Member

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    Milspec is no guarantee of quality; just means it might not blow up in your face. DOD buys from the lowest bidder, some years it is Colt, some years someone else. The M16's I have signed out were made by Mattel, General Motors, Singer Sewing machine company, and a host of other companies making everything from Playdough to cough drops. Most were Ok, but sometimes I would see way too much daylight between the receivers. Sometimes I would luck out and get a Colt. They make good stuff, but there are other high quality AR manufacturers who sell for less.
     
  20. JonM

    JonM Moderator

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    the military doesnt inspect each and every rifle or part. milspec just means whatever the military needs they have a set of standards or measurements that the product needs to meet to be purchased. even toilet paper has a milspec standard.

    there are a lot of AR15 makers that meet or exceed milspec standards and qualify as milspec but have never sold a single part to the us govt.

    i think the only time you will run into that sort of nonsense is if your in commifornia taxachussetes or the people's republik of illinoise or one of the other liberal hellholes. the atf has more important things to than inspect individual firearms. like selling guns to drug lords... however you can be sure that if your engaged in frequently selling noncompliant or doing other illegal actions with firearms its going to be a sentence enhancer
     
    Last edited: Dec 28, 2011