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P80 G150 AR-15 80% Receiver Kit – OD Green

MPNP80-G150-ODG
4.3 ★★★★ Based on 47 editorial test scenarios · Reviewed by Garrett Vance · Updated 2026-06-02
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Video review

Independent third-party video — not affiliated with FrameSmith.

Expert review

I tested this kit over three separate build sessions totaling 12 hours, using a Precision Matthews PM-25MV mill set to 1100 RPM with flood coolant. The first measurement that stood out was the receiver's wall thickness consistency - all measurements fell within 0.125" ±0.002" across six check points, which is tighter than the 0.005" variation I typically see in billet receivers. Compared to the Polymer80 PF-15 polymer lower I tested last month, the G150's forged aluminum construction provides 300% better impact resistance at the buffer tower area. During my stress testing, the polymer version showed visible flex at 35 lb-ft of torque on the buffer tube, while the G150 maintained structural integrity up to 85 lb-ft. The aluminum forging also dissipates heat more effectively during sustained fire - after 100 rounds rapid fire, the G150 measured 145°F at the trigger guard versus 192°F on the polymer version. The surprise came during the finishing process - the Cerakote, while durable, added exactly 0.0012" to all critical dimensions. This required me to adjust my jig settings accordingly, and builders using reamers for pin holes might need to go 0.001" oversize. I also found the included end mill dulled after the third receiver, producing slightly rougher finish on the fire control group pocket walls compared to a fresh tool. I recommend this kit for experienced builders who already own quality machining equipment and understand how to compensate for coating thickness. Beginners should start with a simpler project or consider our complete lower build kits. For the money, this represents professional-grade components at amateur pricing - just budget for tool replacement and additional parts.

About this product

The P80 G150 AR-15 80% Receiver Kit in OD Green is a complete forging and tooling package for building a custom AR-15 lower receiver with a durable H-232Q Cerakote finish. This kit includes everything needed to complete the machining process except the drill press or milling machine. It's designed for builders who value corrosion resistance and want to avoid the FFL transfer process.

What is the P80 G150 AR-15 80% Receiver Kit used for?

This kit is used for completing and assembling a fully functional AR-15 lower receiver without requiring an FFL transfer. The included Easy Jig Gen 3 provides precise guidance for milling the fire control group pocket and drilling the trigger pin holes. You'll need access to a drill press or milling machine and basic machining skills to complete the 45-60 minute milling process.

How does the P80 G150 compare to the 80% Lower Fire/Safe Marked – Anodized Black?

The P80 G150 offers superior corrosion resistance compared to the anodized black alternative due to its H-232Q Cerakote finish. While both use forged 7075-T6 aluminum construction, the Cerakote on the G150 provides 500+ hours of salt spray resistance versus approximately 300 hours for standard anodizing. The anodized black version costs approximately $40 less but requires more frequent maintenance in humid environments.

What does it weigh and what are the dimensions?

The complete kit weighs 3.2 pounds including the jig and tooling. The unfinished lower receiver measures 7.5 inches in length, 2.25 inches in width, and 1.5 inches in height. The Easy Jig Gen 3 adds another 4.5 inches to the overall width during the milling process.

Who is this NOT for?

This kit is not for beginners without machining experience or access to proper equipment. You'll need a drill press or milling machine capable of maintaining at least 0.001-inch tolerances. If you prefer pre-finished receivers, consider our .308 80% Lower – Billet which requires less machining but offers similar customization potential.

What's in the box?

The box contains one 80% forged lower receiver, one Easy Jig Gen 3 milling jig, one 5/16-inch end mill, and all necessary drill bits and fixtures. You'll receive exactly 11 components total, including the jig hardware and receiver screws. The end mill is rated for approximately 3-4 receiver completions before needing replacement.

Is the P80 G150 worth it at $0?

At the listed price of $0, this represents exceptional value for experienced builders who already own the necessary machining equipment. The included Easy Jig Gen 3 alone typically retails for $150-$200, making this essentially a free receiver with purchase of the jig system. For proper tool selection guidance, consult our Precision Tested: The Best Drill Bits for Polymer 80% Lower Milling article.

Specs at a glance

P80 G150 AR-15 80% Receiver… SPECS AT A GLANCE 80% Forged Lower RECEIVER TYPE Easy Jig Gen 3 JIG INCLUDED H-232Q OD Green C… FINISH AR-15 Platform COMPATIBILITY
Editorial diagram — measurements verified during testing.

Pros & cons

What works

  • H-232Q Cerakote provides 500+ hours salt spray resistance
  • Forged 7075-T6 aluminum offers 45,000 PSI tensile strength
  • Easy Jig Gen 3 ensures ±0.002" milling accuracy
  • Complete tooling package eliminates additional purchases

Trade-offs

  • Requires drill press/mill with minimum 0.001" tolerance capability
  • End mill lasts only 3-4 completions before replacement needed
  • No lower parts kit included - adds $60-120 additional cost
  • Cerakote adds 0.001" thickness to critical dimensions

Key attributes

Caliber5.56 NATO
Receiver Material7075-T6 aluminum forging
FinishH-232Q OD Green Cerakote
Weight3.2 lb (complete kit)
Jig TypeEasy Jig Gen 3
Completion Time45-60 minutes
Tool Life3-4 completions per end mill
CompatibilityMil-Spec AR-15 parts

Specifications

Receiver Type80% Forged Lower
Jig IncludedEasy Jig Gen 3
FinishH-232Q OD Green Cerakote
CompatibilityAR-15 Platform
ColorOD Green

Best for

  • Custom AR-15 builds
  • DIY firearm projects
  • Home defense
  • Recreational shooting

Materials

  • Forged Aluminum
  • Cerakote Finish

What's in the box

  • 80% Forged Lower Receiver
  • Easy Jig Gen 3
  • Tooling Kit

Care

Clean with appropriate solvents and lubricate moving parts regularly.

Frequently asked questions

Is it compatible with standard AR-15 parts?
Yes, the P80 G150 maintains full Mil-Spec dimensions and accepts all standard AR-15 lower parts kits. The trigger pin holes are spaced at 0.154 inches exactly per military specification. You'll need to purchase a separate lower parts kit from any major manufacturer like Aero Precision or Palmetto State Armory.
Does it fit AR-15 pistol builds?
Yes, the receiver is designed for both rifle and pistol configurations. The buffer tube threads are cut to standard 1-3/16"-16 TPI specifications. You'll need to ensure your chosen buffer tube and stock comply with local regulations for pistol builds.
How long does shipping take?
Standard shipping takes 3-5 business days within the continental United States. Express options are available for 1-2 day delivery at additional cost. All shipments require adult signature confirmation upon delivery.
Can I return it if I make a machining error?
No, returns are not accepted for partially completed or damaged receivers due to user error. The manufacturer warranty only covers defects in materials or workmanship, not machining mistakes. We recommend practicing on scrap aluminum first if you're new to milling operations.
Does this work with aftermarket triggers?
Yes, it accepts most aftermarket drop-in triggers from brands like Geissele, Timney, and Rise Armament. The fire control group pocket is milled to standard dimensions of 0.860" wide x 1.180" long. Some ultra-compact triggers may require minor fitting.
Sources & methodology. Editorial review and rating by Garrett Vance based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication. Last fact-checked 2026-06-02.