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Brian Enos's Forums... Maku mozo!


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About MickB

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    Calls Shots

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    Phoenix, AZ
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    Mick Bjelopavlic

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  1. Open shotgun red dot size?

    Shield SIS... https://www.brownells.com/optics-mounting/electronic-sights/red-dot-sights/sis-center-dot-red-dot-sight-prod82465.aspx Regards, Mick
  2. Thoughts on hand stops

    Low Pro hand stop is the smallest I have seen and are perfect for short barrel applications https://www.lowprollc.com/product/
  3. OAL with Colt Mags

    I load to 1.15" and have no issues... Mick
  4. Ammo For Flasher Targets?

    Just use Independence 5.56... Mick
  5. pcc options

    Contact QC10 and see if they will help by swapping the set. The QC10 lowers I have are all tight with their uppers. Mick
  6. PCC AR 9mm barrel makers?

    I load to 1.15" with 124gr Precision Delta fmj with no issues in a Ballistic Advantage barrel. Mick
  7. pcc options

    You do know there is a tension screw in the QC10 lower to tighten the upper to lower fit, right? Also, as in any upper/lower set, fit can also be influenced by the front pivot pin. Mick
  8. Superstition Mountain Mystery 3 Gun 2018 at Rio Salado Sportsman's Club, Mesa AZ March 23-25, 2018
  9. pcc options

    The QC10 lowers have a tension screw built in to take out any slop from the upper. With that said, my QC10 upper fit my QC10 lower so well that I had no need to use the tension screw. Mick
  10. Diy Hydraulic Buffer

    Can you show the internals? Are the pistons available from commercial sources? Mick
  11. Upper/Lower compatability

    That is pretty sad if true. The Colt 9mm AR was designed around a regular mil-spec upper, so if an upper receiver maker can't get something as basic as the bolt bore correct then they have quality issues. Mick
  12. Double Feeds

    First check that the mag springs are not in backwards. Also what is your double feed? One empty and one live round or two live rounds? mag blocks are extremely sensitive to position in the magwell for feed reliability. Mick
  13. which gun for pcc

    ASC mags is a clue. ASC is the old C-Products. OEM for Colt is Metalform. For a brief period Colt tried using C-Products/ASC but quickly went back to Metalform for reliability reasons. As Tim also mentioned the other FTF issues in the Colt system is the feed cone of the barrel entering the chamber. Barrels with insufficient angle or sharp edges will cause the incoming round to hang up on the way into the chamber or even worse, drive the projectile into the case. Not all PCC barrels, bolts, and lowers are created equal as people are finding out. Mick
  14. which gun for pcc

    Colt pattern lowers have always had the feed ramp in place due to the feed angle of the magazine used. This style lower has been around since the very beginning. Glock pattern lowers came way later. The feed angle of glock pattern lowers is also different to that of Colt pattern. Since you now have a Colt pattern lower I would suggest you stick to Metalform manufacture mags like those from Brownells or PSA. The mag in your picture looks like an ASC or C-Products mag (orange follower) which are not the most reliable. Mick
  15. which gun for pcc

    Early QC10 glock lowers used to come with a feed ramp. One thing to remember is that QC10 were the original developer of the glock mag pattern AR9 lower receiver (QC10 used to be the company known as DDLES before they were taken over and renamed QC10). The point is that they have been doing the glock pattern lower longer than anyone else. QC10 eliminated the feed ramp in their glock lower for the simple reason that as the cartridge is stripped from the mag, the nose of the round actually enters the chamber while the rear of the cartridge is still held by the magazine feed lips, meaning that in the QC10 glock lower the feed ramp was not needed. Try it with a dummy round and you'll see. Mag well placement in the lower is the key. I cannot comment on other brands of glock pattern lowers but my bet is that those that are having issues with feeding are experiencing "bullet jump" where the round has left contact with the mag feed lips before the round has entered the chamber or the angle of the magazine is such that the round takes a slight nose dive during feeding, which is what a feed ramp would help to cure. Mick