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  1. #1
    Senior Member twaits will become famous soon enough

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    Windham Weaponry AR15 cut-away

    Just had a cut away done up by Vaughn Schafer at 2 Unique Machine. I finished painting it up yesterday and it's on its way to the NRA show for display next week. I thought it came out real nice.














    The hot gasses coming through the gas tube shown here are blown down into the carrier through the gas key that the tube is inside of. This pushes the carrier back which rotates the bolt to unlock it out of battery. The carrier continues on it's backward motion until it can't go any farther and the empty shell is ejected through the ejection port.



    This photo shows the gas port in the barrel. The gas bleeds through the port into the hole in the gas block. There is a corresponding hole in the gas tube where the gas is fed into it.
    The gas travels down the tube to the gas key in the carrier shown above.



    Hammer in the fired postition resting against the firing pin.



    Hammer cocked and gun on safe. Bolt carrier locked to the rear. You can see the sear area in the bottom window. The reason the sear notch in the hammer is not engaged with the trigger here is because the carrier holds the hammer back a little farther when the carrier is locked to the rear.
    The window above this one shows the disconnector. When it is engaged it connects with that hook you see on the hammer.



    Other side showing carrier locked to the rear through the window.



    This is where the forward assist engages the carrier. You can tap the forward assist to ensure that the gun is all the way in battery.



    Buffer and spring shown with carrier locked to the rear.

    Last edited by twaits; 04-06-2012 at 04:23 AM.

  2. #2
    Senior Member gaucho1 is on a distinguished road

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    Thumbs up

    I have always enjoyed cutaways, Very interesting and fun to puzzle out a bit.

    Please describe gas system and gas exit behind closed bolt.

    Nice job.

    John

  3. #3
    Supporting Member Malysh is on a distinguished road
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    Nice cutaway. Given that there are never many cutaways from any manufacturer, just think. In 50 years that Windham Weaponry cutaway will have morphed into a valuable and collectable item fetching a high price

    Hey, don't you stake that buffer tube retaining plate to the lower receiver?

  4. #4
    Senior Member twaits will become famous soon enough

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    We don't stake the castle nuts. As tight as we put them on I'll eat my hat if one ever comes loose. Honestly we get more complaints from people (we did with bushmaster as well) from people that can't get the nut off. A lot of people want to change or upgrade the stock in some way. But if anyone buys one of our rifles and wants the nut staked on if they send the lower back to the factory I will do it for them for free.

  5. #5
    Senior Member twaits will become famous soon enough

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    Quote Originally Posted by gaucho1 View Post
    I have always enjoyed cutaways, Very interesting and fun to puzzle out a bit.

    Please describe gas system and gas exit behind closed bolt.

    Nice job.

    John
    Updated above with descriptions of what you are looking at.

  6. #6
    Supporting Member Malysh is on a distinguished road
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    Quote Originally Posted by twaits View Post
    We don't stake the castle nuts. As tight as we put them on I'll eat my hat if one ever comes loose. Honestly we get more complaints from people (we did with bushmaster as well) from people that can't get the nut off. A lot of people want to change or upgrade the stock in some way. But if anyone buys one of our rifles and wants the nut staked on if they send the lower back to the factory I will do it for them for free.
    Sorry Erik, I was just teasing you because Colt always staked the castle nut after the buffer assembly was installed on the collapsible stock models.
    And, on top of it I couldn't remember the correct name of the part! I was too lazy to go upstairs and look at a manual, serves me right

  7. #7
    Senior Member twaits will become famous soon enough

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    Quote Originally Posted by Malysh View Post
    Sorry Erik, I was just teasing you because Colt always staked the castle nut after the buffer assembly was installed on the collapsible stock models.
    And, on top of it I couldn't remember the correct name of the part! I was too lazy to go upstairs and look at a manual, serves me right
    And I of course go immediately into customer service/ tech support mode

  8. #8
    Supporting Member Fortibus55 is on a distinguished road
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    VERY interesting and appears well done. Did you do this for instructional purposes (I'm getting the impression from the thread you work in the industry) or 'cuz it just looks so darn cool? May I copy and save the photos for my own informational purposes?

  9. #9
    Supporting Member Oyeboten is on a distinguished road
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    So...if you fire it this way, wouldn't it make for something of a bulged Cartridge Case?


    ( ...sorry...just being playful...)


    Nice job! Fun to look at..!

  10. #10
    Senior Member twaits will become famous soon enough

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    Quote Originally Posted by Fortibus55 View Post
    VERY interesting and appears well done. Did you do this for instructional purposes (I'm getting the impression from the thread you work in the industry) or 'cuz it just looks so darn cool? May I copy and save the photos for my own informational purposes?
    Yes we did it for instructional purposes and for show display. We had a few of them when I worked for Bushmaster. It's a great eduactional tool to really show someone what you are talking about when you tell them how the weapon functions. If we ever do a dedicated gas piston rifle I want to do the same thing to one of those.
    Feel free to copy the pictures for your own purposes. Any images that I take for Windham Weaponry belong to the company though. So if you save and post them anywhere else you should probably get permission from the company.


 

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