This Elite Builder 80% Lower Jig is compatible with our Forged 80% Lowers and our Premium Fire/Safe Marked Billet 80% Lowers! Other manufacturer's billet 80% lowers may be compatible with the Elite Builder 80% lower jig, provided their lower receiver design adheres to mil-spec specifications.
This 5-pack 80% lower and jig combo is the safest way to invest your future AR-senal without having to worry about future costs or shipping times. We bundle each kit and jig with precision, industrial-grade HSS bits to ensure you can cut and drill all five lowers with ease.
Premium Billet 80% Lower Receiver
All billet 80% receivers are precision-cut from CNC and feature a mil-spec anodized finish with plenty of other upgrades that make aesthetics greater and assembly easier. All fittings are 100% mil-spec, guaranteeing compatibility with virtually all AR parts on the market.
- Integrated trigger guard
- Threaded bolt catch hole
- Threaded rear takedown hole
- Included screws and hex key
- “FIRE” and “SAFE" engravings
- Type III hardcoat anodized finish
- Mil-spec buffer and parts kit fitment
- Broached mag well for easier reloads
The Elite Builder V2 80% AR-15 Jig
If you’re cutting and drilling multiple 80% lowers, the Elite Builder Jig is the only unit capable. It’s made from hardened steel - not aluminum or polymer like most other jigs - and can take a beating while providing machining accuracy down to one-thousandths of an inch. It automatically aligns each lower, too, reducing critical measuring and guesswork for first-timers:
- Hardened steel drill bushings automatically align and center bits
- All site plates, top plates and templates made from hardened steel
- Template laser-cut to provide machining accuracy down to 0.001”
- Self-aligning jig automatically indexes billet receiver for you
- Black anodized finish protects jig walls and templates
What’s Included with Your Jig
- (1) ⅜ Drill Bit - 5”
- (1) 5/32 Drill Bit - 3”
- (1) ⅜ Short End Mill - 3”
- (1) 5/16 Short End Mill - 4”
- (1) ⅜ Long End Mill - 4”
The Billet 80% Lower Receiver included with this kit is not considered a firearm under the Gun Control Act of 1968 and is not classified as a firearm as defined in 18 U.S.C. 921(a)(3). Please review our Shipping & Returns Policy to confirm whether this combo kit can be shipped to your state.
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.