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80% Arms AR-15 Easy Jig Manual

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AR-15 Easy Jig® MANUAL

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Summary of Contents for 80% Arms AR-15 Easy Jig

  • Page 1 ® AR-15 Easy Jig® MANUAL...
  • Page 2 Warnings and safety notice READ ALL INSTRUCTIONS AND WARNINGS BEFORE USING THE PRODUCT. DO NOT USE THIS PRODUCT IF YOU DO NOT UNDERSTAND THE INSTRUCTIONS AND WARNINGS. FAILURE TO READ THESE INSTRUCTIONS AND TO FOLLOW THESE WARNINGS MAY RESULT IN SERIOUS INJURY OR DEATH TO YOU AND OTHERS AND DAMAGE TO PROPERTY.

  • Page 3: Important Safety Notice

    MESSAGE FROM 80 Percent ARMS Thank you for purchasing our 80 Percent Arms Easy Jig®. Our patented router based milling system is the fastest, easiest, and most popular method to mill your 80% lower at home using common household tools. Our jig’s heavy duty construction ensures your jig will last a very long time and allow you to complete many lowers before needing any replacement parts.
  • Page 4 included parts illustration PURCHASEd SEPARATELY easy Jig® tool kit...
  • Page 5 included parts required tools • Router (w/ 1/4” collett) #01: Right Jig Wall (1pc) • Drill (Hand or Drill Press) #02: Left Jig Wall (1pc) • Table Vise or 2 Table Clamps #03: Pocket Drilling Block (1pc) • 1/8” Allen Wrench (for template #04: Template Spacer (1pc) bolts)
  • Page 6 STEP1 Attach side plates #01 and #02 to lower receiver using the Jig Wall Bolts #08. Tighten the (4) bolts in an alternating manner. Do not over tighten bolts, just snug with an Allen key. Use masking tape or painter’s tape to mask all areas of the receiver that will not be machined.
  • Page 7 STEP 3 Prepare the 3/8” Drill #13 and 3/8” Drill Stop #12 to the appropriate length by using the Rear Shelf Pocket Template #06 labeled MAIN. Securely tighten the drill stop collar. The drill bit should be touching the bottom of the depth gauge.
  • Page 8 STEP 5 Drill the two rear holes for the rear shelf. (NOTE: If your lower already has the rear shelf lug area milled out, skip step 5 completely and go to step 6.) Remove the top rear jig bolt so you do not drill through it. Remove the tape to expose the REAR drill block holes.
  • Page 9 STEp 7 Place the Router Base Support Plate #07 over the lip of the template with the recessed bolt holes facing up. The router base only fits flush one way, so if your holes don’t line up, rotate the support plate 180 degrees. Attach the plate using the #09 Template Bolts, tightening the bolts to the top of the jig walls in the same alternating fashion.
  • Page 10 STEP 9 With the router off, insert the end-mill into the center of the furthest hole from you. The tip of the end-mill should be just below the top of the 3/8” hole you drilled out earlier. Maintain a firm grip on the router when turning it on. For your first cutting pass, only focus on removing material between the holes using a zig-zag pattern until all the holes are connected.
  • Page 11 STEP 11 Continue taking deeper cuts by adjusting the end mill using the depth gauge on the Rear Shelf Pocket Template #06 labeled MAIN. For 6061 lowers increase the depth of the end mill incrementally 1/4 to 1/3 notch for each pass until you bottom out the end mill inside the depth gauge.
  • Page 12 STEP 12: Prepare the jig to mill the rear shelf. TIP: If your lower already came with the rear shelf / lug area milled out, skip step 12 and 13 and move directly to step 14. Remove the Router Base Support Plate #7 and the Trigger Pocket Template #5.
  • Page 13 STEP 13: Adjust the end-mill to the appropriate length to mill the rear shelf by using the depth gauge on the Trigger Pocket Template #05 labeled REAR. Adjust your router depth so the end mill is touching the first notch / hash mark on the template depth gauge.
  • Page 14 STEP 14 To complete the trigger slot remove all the top plates and the template spacer. Clear away chips from the lower and side plates. Reinsert and tighten the Rear Jig Bolt #08. Place the Trigger Pocket Template #05 on the jig with the depth gauge facing down.
  • Page 15 STEP 15: To mill the trigger slot, remove the Trigger Pocket Template #05 and set the Rear Shelf Pocket Template #06 on the jig, with the raised lip facing up. Secure the Router Base Support Plate #07 on top of the template using only the 2 short Trigger Milling Bolts #10.
  • Page 16 STEP 16 Remove all of the template top plates to drill the trigger, hammer and safety selector holes. Clear out chips and reposition the jig and lower on its side. Because the bolts holding the jig together may stick out of the jig side plates, use spacers (such as the template plates) to raise the jig assembly so that it is laying level.
  • Page 17 clean up tips During milling, it’s possible for small chips to rub between the jig plates and the lower. Aluminum residue from the chips can rub onto the anodized finish of the lower. The anodized finish on the lower is much harder than the raw aluminum chips.

  • Page 18: Parts And Accessories

    PARTS AND ACCESSORIES 80 Percent Arms carries a complete line of replacement parts for the Easy Jig® and other parts and accessories to finish your build project, including matching 80 Percent Arms billet upper receivers. Visit us at www.80PercentArms.com to browse our full catalog of parts and accessories.
  • Page 19 notes ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ 18 -...
  • Page 20 “A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.” ® Copyright © 2016, 80 Percent Arms Inc.

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