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.
The Elite Builder 80% Lower Jig and tool kit combo is the key to cutting and drilling multiple 80% lower receivers for the AR-15 or AR-9 without losing efficiency or accuracy. Made from hardened steel plates, the Elite Builder jig can machine any standard (mil-spec) forged, billet, or polymer receiver without breaking a sweat, with results as accurate as one-thousandth (0.001”) of an inch.
Includes Quality HSS Bits
The jig’s only as good as the bits you use it with. So, the Elite Builder includes quality industrial-grade HSS (high-speed steel) drill bits and end mill bits to cut through all that aluminum in no time. All you need to complete your receiver blank is a basic drill press and about two hours’ time. The tool kit includes:
- (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”
Jig Features & Specs:
- 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
*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.
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80-Lower.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally.