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copterdrvr

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About copterdrvr

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    Finally read the FAQs

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  1. I had the same issue with a forged upper receiver but it was a simple fix. The part of the unit that makes contact with the receiver just in front of the "regular" charging handle needs to be ground down a bit as the unit is designed for "milspec" uppers. I took my trusty Dremel to it and it took about five minutes of grind and fit to get it to work properly. I contacted the manufacturer and he said my fix was exactly what was required and stated that the unit was designed to fit milspec uppers and that forged uppers were just a bit thicker and would cause a bind if the "nub" wasn't taken
  2. I have around 2K rounds through my AR9 FM9 lower with the CMC 3.5lb AR9 flat faced trigger and it's been 100% and that includes some ridiculously light 95 PF loads as well as 135 PF loads.
  3. I have, well, let's say I have a few of them installed and I love 'em. I'm a lefty and it just feels good to be able to clear the gun still on my shoulder while holding the forend-very solid and easy to keep the dot on the target. Another benny is not having to worry about bustin' myself in the nose weighs less than five ounces which equates to 10 of my 147 grn rounds. My rifle as configured weighs exactly 6 pounds 11 ounces which feels light to me but I'm guessing the real gunners would consider that too heavy.
  4. I picked up a Faxon 16 inch barrel with integral muzzle brake, FM9 lower, CMC 9mm trigger, Blitzkrieg HD 9mm buffer and a no name upper and handguard and it's been 100% shooting it in USPSA competition. Cost me WAY less than a "store bought" gun.......
  5. Quick question-how do you think these numbers would work through a 16 inch barreled blowback PCC? Thanks for your hard work!
  6. My recent experience (last two years} of building AR9's shows that until very recently, 9mm AR barrels were more often than not 1/2 X 36 but recently I find there are more barrels that are available being threaded 1/2 X 28 and I think that's a mistake...... I think that 1/2 X 36 was a smart idea to keep the clueless idiots from putting their AR15 .223 muzzle brakes on a barrel that will blow up the gun (and possibly hurt themselves and others) on the first shot............
  7. On another note, I have two AR15 AERO lowers that I've converted to 9mm Glock by installing Sylvan conversion blocks and they have been 100% reliable. The Sylvan block is a solid, robust component that requires ZERO tweaking to get them to work-in fact, the simplicity of the piece is such that there isn't anything to "tweak". You need to look at their site and see the piece to understand it's construction and installation. I've shot the heck out of them and they just work. I'm a Lefty and love the ambidextrous design of the mag release-it's in front of the magwell and works perfec
  8. Couple of quick things that I just went through myself...... First off, remember that if you purchase a lower that has a "rifle" buttstock on it, you can NOT use it to build a "pistol" as the form 4473 will have it listed as a "rifle" and it can not be converted to a "pistol" AR unless you want to go through the hassle of registering it as a SBR. If you use either a stripped or completed lower that did not come with a stock installed, they will be listed as "other" on the form 4473 and you can do what you want with them. If the lower came as a "pistol" lower, obviously no issue
  9. If there is ANY spring that needs to be replaced IMMEDIATELY, it's the striker spring as it is ridiculously overpowered. The pistol was designed to pass NATO requirements for reliability and accuracy up to 60,000 rounds and the ability to "ignite" NATO spec sub machine gun ammo (obviously part of the NATO specs) and in this discussion means that the striker spring is WAAAAAY stronger than needed. If you change the spring, aim it at an interior wall when you remove it from the striker because if it gets away from you, it will be easy to find as it will probably be found embedded in
  10. That is one awesome looking pistol!!!
  11. I'm confused-been loading 9mm, 380, 45 ACP, 38 Special and 357 mag using Dillon dies exclusively in 550's for over 40 years and have NEVER had an issue with them over God knows how many thousands upon thousands of rounds.
  12. Yeah, that's a little confusing....... we all know that a gas driven should chuck them about 4 o'clock.... with your response I don't know if you're giving examples for AR15's or AR9's but thanks anyway as I know were AR 15's should eject-the question is AR9's.....
  13. Did you put the Blitzkrieg weight at the front of the recoil assembly or did you put it at the bottom? I have he HD Blitzkrieg buffer installed in my AR's.
  14. What recoil spring and buffer are you using????
  15. Don't know who the question is for but myAR 9's all have CMC pcc triggers.
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