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Video of a newer toy

Discussion in 'General Firearm Discussion' started by Noxspector, Dec 30, 2008.

  1. Noxspector

    Noxspector Oregon Member

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    If anyone's interested I just posted a new video of my newer suppressed 9mm AR. I finally had a chance to play around with the new software and get mad with the codecs.

    This is my latest suppressor. Due to a lot of crap going on this project took a year and a half to complete. The main issue was getting my Steve to mill out the upper to use it with the Oly Glock lower. I wanted to go with a upper without a forward assist so I went with a Les Baer upper receiver which had to be modified. I just recently scored the Tri-power with mount for a good deal. Overall I couldn't be happier with the setup. It's quickly becoming my favorite firearm to shoot.

    For the video I wanted to show some different point's of view and distances for the audio as an experiment. I really wish I could spring for a decent sound setup separate from the camera, one without compression. Maybe someday when I have bought all the NFA I want.......... oh well forget that idea.

    I wanted to say thanks to:

    Doug at SRT for doing a great job on a sweet suppressor.
    Pat at Oregon Research Labs LLC for handling most of my local NFA stuff.
    John at Silencerresearch as his review of Doug's upper pushed me over the edge.
    Steve at J&S Gunparts for doing the work on the upper receiver and getting my the overall rifle.






    9mmSuppressedTwins001.jpg
     
  2. mobil1

    mobil1 Northwest Active Member

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    Awesome setup! If you dont mind me asking, how much did it cost to set up that AR?
     
  3. Noxspector

    Noxspector Oregon Member

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    Figure roughly $2500 not including mags and my second upper and optics I have for it. It would cost a touch more than that as I purchased some components for good deals like the hand guard and upper receiver. It's a lot of money for me, but it's something I've been wanting for a long time. It was a good day when I took possession of it as I also received my Tromix 8" S-12 and Warlock suppressor. The wait on the Tromix was almost the same time.
     
  4. Cerberos

    Cerberos Portland, OR New Member

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    Fantastic! Very impressive performance. I particulary like the intregal barrel/suppressor setup on the AR platform. I'm assuming it was a dry setup?
     
  5. Noxspector

    Noxspector Oregon Member

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    Yes, but you could run it wet. that won't gain you much as most of the noise is the action/bolt. It does get a bit noisier if I run it with a standard buffer.
     
  6. Doc In UPlace

    Doc In UPlace Tacoma-ish Well-Known Member

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    Nice n quiet! Good production values, too, you guys put a lot of work into the video. Thanks.
    Please do one with the Glock! :)
     
  7. Noxspector

    Noxspector Oregon Member

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    I've had a video of that for quite some time...... Check out some of my other videos as well.

    http://www.youtube.com/watch?v=yqkf4Qwedt8


    :poke:
     
  8. Cerberos

    Cerberos Portland, OR New Member

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    It appears from the video that the cycle time is quite slow (Enidine hydraulic buffer?). What modifications, if any, did you make to the gas system to keep the cycle time as slow as it appears? Is the increase in the back pressure caused by the suppressor offset by the 9mm, or did you reduce the port size?
     
  9. Noxspector

    Noxspector Oregon Member

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    Although there are a few somewhat experimental gas operated pistol caliber ARs out there they are direct blowback. The only way really to change the dwell time of the bolt is to make it heavier or increase the weight of the buffer or buffer spring tension. You can run the 9mm PCC with a standard carbine buffer, but running a heavier weight one increases dwell time. This reduces bolt speed which actually reduces recoil from the bolt slamming back and decreases port noise as more gas goes down the barrel instead of out the port. On a larger calibered PCC you need to run a heavier buffer they put more stress on the lower receiver.

    The Olympic Arms system (bolt) has a bit more drag on it compared to a RRA/Colt PCC system as the ejector pushes on the bolt. I was running some of my slightly underpowered reloads (- 0.1gr) for that video as they were what I grabbed that day. I actually had some short cycles that day. That's why the bolt didn't lock back on the last round in the video.
     
  10. Doc In UPlace

    Doc In UPlace Tacoma-ish Well-Known Member

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