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                       -*- Are We Cool Yet? Presents -*-                        
                                                                                
╔══════════════════════════════════════════════════════════════════════════════╗
║                                                                              ║
║                          The DB MkCarbon Jig System                          ║
║                                                                              ║
║    A DIY tube upper receiver for the Ruger MKI Std, MKII Std, MKIII Std,     ║
║                  MKII 22/45, and MKIII 22/45 22LR Pistols.                   ║
║    This is designed to be a long-lasting top tier competition pistol. The    ║
║                      more time you dedicate, the better                      ║
║   your result will be. Take pride in it. This could outlast you if you do    ║
║                                  it right!                                   ║
║                                                                              ║
║                                 Version 1.0                                  ║
║                                                                              ║
╠══════════════════════════════════════════════════════════════════════════════╣
║                               /X> Credits <X\                                ║
╠══════════════════════════════════════════════════════════════════════════════╣
║                                                                              ║
║                          [-+ Brought to you by +-]                           ║
║                                                                              ║
║                   ︻╦╤─ Danish Bulldog & DB Firearms ─╤╦︻                    ║
║                                                                              ║
║                           [-+ With the help of +-]                           ║
║                                                                              ║
║         3d_OA, Pixel Smoke, Insert_Meow, V @ 3dprintfreedom.com, and         ║
║                                                                              ║
║                         [-+ Additional thanks to +-]                         ║
║                                                                              ║
║                           The Mark-R Beta Crew and                           ║
║                                                                              ║
║                       the entire Are We Cool Yet? team                       ║
║                                                                              ║
╠══════════════════════════════════════════════════════════════════════════════╣
║                         /X> Required Components <X\                          ║
╠══════════════════════════════════════════════════════════════════════════════╣
║                                                                              ║
║                          [-+ Non Printed Parts +-]                           ║
║                                                                              ║
║   -Ruger MKII,MKIII, or MKIV assembled bolt                                  ║
║                                                                              ║
║   -Complete Grip Frame from MKI Std, MKII Std, MKIII Std, MKII 22/45, or     ║
║   MKIII 22/45 (Sometimes these come up for a good deal on                    ║
║   slinksgunparts.com). mk1 does not have any LRBHO. If you want to go        ║
║   gucci you can get complete grip frames from Volquartsen or Tandemkross.    ║
║   Just make sure it's mk3 style NOT mk4                                      ║
║                                                                              ║
║   -Ruger Ejector (all generations) OR suggested an ejector from matrix       ║
║   precision. Save yourself the hassle                                        ║
║   of riveting or finding hardware for ejector and get the matrix one. Much   ║
║   easier to install.                                                         ║
║                                                                              ║
║   -Barrel liner from Chaszel (pre chambered) OR either redmans or numrich    ║
║   barrel liner + 10MM OD/8MM ID CF Tube cut to your preferred length and     ║
║   chambered.                                                                 ║
║                                                                              ║
║   -1/2x28 threaded adapter https://www.amazon.com/gp/product/B087PPZ2MN      ║
║                                                                              ║
║   -Steel Barrel Plug from https://db-firearms.com OR print it                ║
║                                                                              ║
║   -Tube with specs of 3/4" ID and 1" OD. I prefer Carbon Fiber and I have    ║
║   lengths available on https://db-firearms.com                               ║
║   You can also use aluminum, brass, steel if you're brave. etc.              ║
║                                                                              ║
║                                                                              ║
║                            [-+ Printed Parts +-]                             ║
║                                                                              ║
║   1. Main Jig, print vertically with front of jig (face without the          ║
║   notches) flat on the build plate. Supports if necessary                    ║
║   2. Jig Plate - Secondary, print with largest face flat on build plate      ║
║   3. Jig-Pin, Print on long flat face                                        ║
║   4. Barrel Plug, if printing, print with the feed ramp up in the air.       ║
║   5. Barrel Muzzle Plug, print with smaller flat face on build plate.        ║
║   6. Contour Cutter, print with back, large flat face on build plate.        ║
║   7. Barrel Plug Glue Spacer, print with large flat face on build plate.     ║
║   This can be with low infill - 5% or so                                     ║
║   8. Jig for rail or RMR plate - printed vertically with no supports         ║
║                                                                              ║
║   Unless otherwise stated, I suggest printing with solid infill. However,    ║
║   you may be able to use infill with 6+ walls to reduce print time and       ║
║   material. A solid jig will offer more rigidity when making your cuts.      ║
║                                                                              ║
║                                [-+ Tools +-]                                 ║
║                                                                              ║
║   -Dremel or similar rotary tool is your friend here with various grinding   ║
║   and sanding bits. I prefer a straight cylinder engraving bit.              ║
║                                                                              ║
║   -Hack saw with sharp new blade                                             ║
║                                                                              ║
║   -drill press or hand drill.                                                ║
║                                                                              ║
║   -Standard Files & Needle Files                                             ║
║                                                                              ║
║   -5/16 drill bit (bolt stop pin hole)                                       ║
║                                                                              ║
║   -1/8" drill bit (ejector pin hole)                                         ║
║                                                                              ║
║   -Respirator REQUIRED WHEN CUTTING THIS STUFF - IT'S NASTY                  ║
║                                                                              ║
║   -Vise or some way to secure jig                                            ║
║                                                                              ║
╠══════════════════════════════════════════════════════════════════════════════╣
║                       /X> Jig Cutting Instructions <X\                       ║
╠══════════════════════════════════════════════════════════════════════════════╣
║                                                                              ║
║   Insert the carbon fiber tube into your Main Jig so that the tube is        ║
║   flush with the end of the jig with the notches.                            ║
║   If you want to have it sticking out by 1mm you can sand the end of the     ║
║   barrel flush with jig for a perfectly square                               ║
║   end.                                                                       ║
║                                                                              ║
║   Secure jig in your vise                                                    ║
║                                                                              ║
║   Drill the bolt stop pin hole, going slowly, using your 5/16" drill bit.    ║
║   Be careful and use lubrication to avoid heat.                              ║
║   Insert the Jig-Pin into the drilled hole to lock the tube into the jig.    ║
║   If this pin is tight, I suggest hammering it in with a                     ║
║   rubber mallet. Once this is in, it needs to be secure so your tube         ║
║   doesn't move while you're working on it.                                   ║
║                                                                              ║
║   Drill the ejector pin hole - 1/8"                                          ║
║                                                                              ║
║   Cut the notches in the back of your receiver using a Dremel to rough the   ║
║   shape out. Finish the notches square with                                  ║
║   your files. You're a master craftsman, an artist. Don't caveman this       ║
║   shit.                                                                      ║
║                                                                              ║
║   Using the angled edges of the bottom of the jig as a guide, saw notches    ║
║   into your tube. There should be a total of four cuts                       ║
║   on the bottom, two straight and two at an angle.                           ║
║                                                                              ║
║   Use your Dremel to continue removing material from the bottom of your      ║
║   tube. Your goal is to make the bottom flat with the jig contours.          ║
║   Don't remove too much with your Dremel. You'll want to finish with your    ║
║   files for nice smooth and flat surfaces.                                   ║
║                                                                              ║
║   Insert the Jig Plate onto the main jig and push down to secure. If it is   ║
║   loose, wrap some tape around it so it doesn't move.                        ║
║   Using your Dremel and files, cut the contour of the hole correctly,        ║
║   Follow contours of the jig plate. Go slowly.                               ║
║                                                                              ║
║   Cut the ejection hole. Using a drill press, drill out several holes        ║
║   first then used the Dremel to rough the hole out. This is the most         ║
║   difficult                                                                  ║
║   part to get right. This doesn't need to be ultra precise, just look        ║
║   clean. You may need to clean your edges after                              ║
║   removing the jig with the flat face of a file.                             ║
║                                                                              ║
║   Remove the tube from the jig and install the contour cutter. Reinstall     ║
║   the pin to make sure it's square. Gently sand/Dremel away the extending    ║
║   sections to be                                                             ║
║   flush with the contour cutter. Use files to finish the faces and make      ║
║   them smooth.                                                               ║
║                                                                              ║
║                                                                              ║
║   Next:                                                                      ║
║   Prep your barrel liner and plugs for installation. Chamber the barrel      ║
║   liner if needed, test fit all pieces. Cut the                              ║
║   carbon tube down to the length you've planned for. File the Extractor      ║
║   notch. Epoxy in place using the Bolt Glue Jig. Allow to cure for 24 hrs.   ║
║                                                                              ║
║   Optic Mounts:                                                              ║
║                                                                              ║
║   There are three optics options: a long rail, a short rail and an RMR       ║
║   plate. Print the rail or RMR plate, corresponding jigs, and use them to    ║
║   drill holes in your upper.                                                 ║
║   If you are using a metal tube, you can thread these top holes to accept    ║
║   a 3mm screw. In the carbon fiber, I've had success using                   ║
║   a helicoil insert kit in 3mm. This one from Amazon works well:             ║͟ ͟͟ ͟͟
║https://www.amazon.com/Thread-Repair-Installation-Stainless-Helicoil/dp/B07HF6Y5LD║
║                                                                              ║͞ ͞͞ ͞  
║                                                                              ║
║                                                                              ║
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║                                                                              ║
║                 -`-,-{@  AWCY? - Stronger Together  @}-,-`-                  ║
║                          (oven appreciation group)                           ║
║                   Join us at: https://www.AreWeCoolYet.WTF                   ║
║                                                                              ║
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