This jig is compatible with our Forged 80% Lowers. Our Premium Fire/Safe Marked Billet 80% Lowers are not compatible with this 80% lower jig. Other manufacturer's billet 80% lowers may compatible with this 80% lower jig, provided their lower receiver design adheres to mil-spec specifications.
Our five-packs of 80% lowers remain hugely popular among AR builders. Some buy to have a “throw-away”, or practice lower. Others are ready to build out their armory with every configuration imaginable. To ensure you can reliably machine each receiver blank with the same, precise results, we’re throwing in the new Elite Builder Jig with quality HSS bits.
(5) Forged 80% Lowers (“FIRE/SAFE” engraved)
The forged 80% lower with “FIRE/SAFE” engravings is our most popular unit. Thousands of shooters have parted together their black rifles from scratch using this 7075-T6 mil-spec receiver. The rear shelf’s already finished with the takedown pin and detent hole, reducing overall work required.
- Type III Hard Anodized
- 100% Mil-Spec Fittings
- Fire/Safe Marked: Yes
- Forged 7075-T6 Aluminum
- Broached Magwell
- Made in the USA
- NO FFL REQUIRED
The Elite Builder Jig w/ HSS Tooling
Made from hardened steel with drill bushings, the Elite Builder Jig is designed to consistently cut and drill lower after lower -- it’s what you’ll need for this five-pack. Included high-speed steel bits provide better results than carbon bits with multiple lowers. The end mill is center-cut for easy plunge cutting with your drill press.
- Self-aligning jig requires no special fitting during setup
- Compatible with any standard AR-15 or AR-9 80% lower
- Black anodized finish protects against rust and corrosion
- Pre-drilled holes for hammer, trigger, and safety pin holes
- Reinforced steel template plates for completing multiple lowers
- (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”
*Important - This jig was designed with a drill press in mind for completing your 80% lower and is not designed to be used with a router/laminate trimmer.
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.