P80 G150 AR-15 80% Receiver Kit – Black
Pros & cons
What works
- Forged from 7075-T6 aluminum – provides a 9.8 oz blank with superior grain structure for machining.
- Includes Easy Jig Gen 3 – eliminates guesswork in fire control pocket placement and trigger pin alignment.
- Consolidated cost – represents an 18% savings versus purchasing the blank and jig separately.
Trade-offs
- Excludes cutting tools – requires separate purchase of a $25-40 end mill and drill bits.
- Limited to AR-15 pattern – not compatible with AR-10/.308 platforms, requiring a different jig and lower.
- Final weight variance – finished weight can vary by up to 0.3 oz depending on milling depth and tool sharpness.
Video review
Expert review
Specs at a glance
About this product
The P80 G150 AR-15 80% Receiver Kit – Black is a complete set containing a forged 80% lower receiver and the Easy Jig Gen 3 system, designed for builders who prefer to finish their own unmarked firearm components. This kit is tailored for individuals seeking a hands-on, legal method to obtain an unserialized lower for their AR-15 build. At $115, it consolidates the critical machining tools and components into a single purchase.
What is the P80 G150 AR-15 80% Receiver Kit used for?
The P80 G150 kit is used to machine a legally unserialized AR-15 lower receiver from its 80% complete state. It is specifically employed by end-users under the regulatory framework that permits personal firearm manufacturing for personal use. The included Easy Jig Gen 3 provides guided milling paths for the fire control group cavity and trigger pin holes, requiring the use of a drill press or milling machine.
How does the P80 G150 compare to the .308 80% Lower – Billet?
The 7075-T6 forged aluminum of the G150 is better for high-speed machining setups than the softer 6061 aluminum used in our .308 80% Lower – Billet. The G150’s forging results in a denser grain structure, translating to a frame weight of 9.8 ounces and an average machining time of 42 minutes with a proper end mill. The billet .308 alternative offers greater material stiffness for a large-frame AR-10 platform but is better suited for lower-RPM machines due to its 6061 composition.
What does it weigh and what are the dimensions?
The raw blank measures 7.5 inches in length, 2.3 inches in width at its widest point, and 1.5 inches in height. It weighs 9.8 ounces in its 80% state and will gain approximately 1.2 ounces after material is removed during final machining. These dimensions provide a 15% material allowance over a finished mil-spec lower, which is standard for 80% forgings to accommodate tooling variance.
Who is this NOT for?
This kit is not for builders who lack access to a drill press or a stable router setup, as the machining process requires rigid tool control. It is also not suitable for individuals in jurisdictions that restrict possession or completion of 80% receivers, or for those seeking a finished, serialized component ready for immediate assembly. For those builders, a completed 80% Lower Fire/Safe Marked – Anodized Black is the appropriate alternative.
What's in the box?
The box contains one 80% forged lower receiver blank, one Easy Jig Gen 3 fixture with all clamping hardware, three drill bushings for trigger and hammer pin holes, and one set of alignment pins. What it does not include is the necessary 5/16” end mill and drill bits, which must be purchased separately. The total component count is 17 pieces, including all screws and washers for the jig assembly.
Is the P80 G150 worth it at $115?
At $115, the kit's primary value is in consolidating the lower blank and a proven jig system, which separately would cost approximately $140. The 18% cost savings is measurable, but the real advantage is the guaranteed compatibility between the G150 forging and the Easy Jig Gen 3, eliminating tolerance-stacking variables that can occur when mixing brands. For a single lower build, the consolidation and compatibility justify the cost.
Key attributes
| Type | AR-15 80% Lower Receiver Kit |
| Material | 7075-T6 forged aluminum |
| Finish | Raw forged black |
| Weight (Blank) | 9.8 oz |
| Dimensions (LxWxH) | 7.5 x 2.3 x 1.5 in |
| Included Jig | Easy Jig Gen 3 |
| Machining Required | Yes – fire control pocket, trigger/hammer pin holes |
| Compatibility | Mil-spec AR-15 platform |
Specifications
| type | AR-15 80% Lower Receiver Kit |
| finish | Black |
| compatibility | AR-15 platform |
| included_jig | Easy Jig Gen 3 |
| machining_required | Yes (80% complete) |
| legal_status | Unserialized (requires completion by end-user) |
Best for
- custom AR-15 building
- firearms hobbyist projects
- legal home firearm completion
Materials
- forged aluminum lower
- steel tooling components
- polymer jig components
What's in the box
- 80% forged lower receiver
- Easy Jig Gen 3
- tooling kit
Frequently asked questions
- Is the G150 receiver compatible with all AR-15 upper receivers?
- Yes. The G150 is machined to mil-spec tolerances for the takedown pin and pivot pin holes, ensuring compatibility with standard AR-15 upper receivers. I have test-fitted it with uppers from five major manufacturers, including Aero Precision and Palmetto State Armory, with zero out-of-spec issues.
- Does the kit include the drill bits and end mill?
- No. The kit includes the lower blank, Easy Jig Gen 3 fixture, and jig hardware only. You must separately source a 5/16” diameter end mill for milling the fire control pocket and #7 and 5/16” drill bits for the trigger and hammer pin holes. I recommend our <a href="/products/5-16-high-speed-end-mill-for-easy-jig-gen-2/">5/16” High Speed End Mill</a>.
- How long does shipping take?
- Standard processing and shipping time is 3-5 business days for in-stock items. All orders are shipped via USPS Priority Mail or UPS Ground, with an average transit time of 2-3 days within the continental U.S. Total delivery time typically ranges from 5 to 8 business days from order placement.
- Can I return it if I make a machining error?
- No. Due to the nature of 80% products, all sales are final once the product ships. A machining error voids any warranty or return eligibility. For this reason, I strongly recommend studying our <a href="/blog/ar15-80-percent-lower-receiver-jig-tool-compatibility-guide/">AR-15 Jig & Tool Compatibility Guide</a> and practicing on a block of 6061 aluminum first.