Quick, easy machining for any AR-15 80% lower.
The Juggernaut Jig secures your AR-15 80% lower with 8 hex bolts, providing a rock-solid, vise-ready unit that makes fabrication a breeze. Just follow the order of the numbered templates, drill your pin holes using the included guide holes on the side plates, and you'll be ready to install your lower parts kit.
Instructions: How to Complete an 80% Lower.
Juggernaut AR-15 Jig: Optional Tooling
- (1) 0.484" Cobalt Drill
- (1) 0.375" Cobalt Drill
- (1) 0.156" Cobalt Drill
- (2) 0.125" Cobalt Drill
- (1) 3/8" Carbide Endmill
- (1) 1/4" Carbide Endmill
Juggernaut AR-15 Jig Features / Specs
- Plates machined from heat-treated 6061 T6 aluminum
- Laser-eteched engravings and hole sizes for convenience
- Type III hardcoat anodized to resist corrosion from chemicals
- Commercial-grade tooling (same bits used on manufacturing lines)
- Capable of completing up to 25+ AR-type 80% lower receivers
- Guaranteed to fit mil-spec / forged lowers; billet lowers may vary
Additional Tools Required
- Drill Press
- Drilling Vise
- Machining Oil
- Eye Protection
- Ear Protection
Grab the gunsmithing tools required here.
WARNING: Handling firearms parts and accessories can expose you to lead and other petroleum products known to the State of California to cause cancer and reproductive harm. For more information go to: www.P65Warnings.ca.gov
Shipping of various parts and/or accessories are prohibited to states and locales (ie New Jersey, California, New York, etc…) with restrictions against certain parts and/or accessories or "assault weapons" (i.e. states with high-capacity magazine restrictions, manufacturing of semi-automatic weapons, etc..). It is your responsibility to be aware of your local firearms laws before purchasing from our website or machining a firearm. We try our best to keep our shipping page current, but laws change daily.
80-Lower.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally.
