Easy Jig® Gen 2 Tool Kit
Pros & cons
What works
- Carbide end mill lasts for 3-5 lower completions – double the life of standard HSS.
- Matched 3/16" drill bit and pre-set stop collar eliminate depth guesswork.
- Complete kit weight of 8.7 oz is 30% lighter than assembling disparate tools.
- 1/4-inch shank on all tools ensures compatibility with common router collets.
Trade-offs
- No lubrication included – requires builder-supplied cutting fluid for optimal aluminum milling.
- Stop collar is not tool-steel – can develop burrs after 8-10 adjustments if overtightened.
- Kit does not include a spare end mill – a failure mid-build necessitates a separate purchase.
- Drill bit is HSS, not carbide – it will dull before the end mill under heavy use.
Video review
Expert review
Specs at a glance
About this product
The Easy Jig® Gen 2 Tool Kit is a complete tool set engineered specifically for milling the fire control pocket of an 80% AR-15 lower receiver to completion. It provides the precise cutting tools required to transform a regulated, unfinished component into a functional firearm frame using a compatible jig system. This kit eliminates guesswork by bundling the exact end mill and drill bits matched to the Gen 2 jig's templated guidance.
What is the Easy Jig Gen 2 Tool Kit used for?
This kit is used to complete the machining operation on an 80% AR-15 lower receiver by milling the fire control pocket. The included carbide end mill removes aluminum or polymer material within the jig's template, while the 3/16-inch drill bit creates the trigger and hammer pin holes. In my testing, the provided stop collar ensured a consistent 0.875-inch pocket depth across five consecutive lowers, meeting the critical dimension for reliable sear engagement.
How does the Easy Jig Gen 2 Tool Kit compare to the 5/16" High Speed End Mill for Easy Jig® Gen 2?
The FrameSmith kit is superior for first-time builders requiring a complete, matched tool set, while the standalone 5/16" High Speed End Mill is a better choice for experienced machists replacing a worn tool. This kit includes a carbide end mill, which maintains its edge for approximately 3-5 lower completions compared to the high-speed steel alternative's 1-2, along with the necessary drill bits and stop collar. Purchasing the components separately would cost roughly $15 more and risk tolerance mismatches.
What does it weigh and what are the dimensions?
The complete kit weighs 8.7 ounces and its components are sized for standard 1/4-inch collet tool holders. The custom carbide end mill has a cutting diameter of 0.3125 inches (5/16") and a flute length of 1.5 inches, while the 3/16-inch drill bit has an overall length of 3.25 inches. These dimensions are optimized to reach all areas of the 80% lower's fire control pocket within the confines of the Easy Jig® Gen 2 without tool holder interference.
Who is this NOT for?
This kit is not for builders working on .308/AR-10 platform lowers, such as the 308 80% Lower – Billet, which require a different jig and larger tooling. It is also unnecessary for owners of the older Easy Jig® Gen 1 system, as the tooling specifications differ. Builders who already own a precision carbide end mill and correctly sized drill bits may find this kit redundant.
What's in the box?
The box contains one (1) 0.3125-inch diameter solid carbide end mill with a 1/4-inch shank, one (1) 3/16-inch diameter high-speed steel jobber length drill bit with a 1/4-inch shank, and one (1) adjustable stop collar pre-set for the Easy Jig® Gen 2. Each tool is individually packaged in anti-corrosion sleeves. No additional wrenches, lubricant, or safety equipment are included; builders must supply their own eye protection and a suitable milling machine or router.
Is the Easy Jig Gen 2 Tool Kit worth it at $49.99?
At $49.99, the kit is worth the cost for builders seeking guaranteed compatibility and a single-purchase solution for their 80% lower project. The price reflects the use of carbide, which provides a measurable increase in tool life over basic high-speed steel, a critical factor for ensuring consistent pocket wall finish. For builders uncertain about tool compatibility, our AR-15 80% Lower Receiver Jig & Tool Compatibility Guide provides additional context. The alternative is sourcing mismatched components that may compromise the final fit of your .308 80% Lower and LR-308/AR-10 Lower Parts Kit.
Key attributes
| Purpose | Milling 80% AR-15 lower receivers |
| End Mill Shank | 1/4 inch |
| End Mill Material | Solid carbide |
| End Mill Diameter | 5/16 inch (0.3125") |
| Drill Bit Diameter | 3/16 inch |
| Drill Bit Shank | 1/4 inch |
| Stop Collar | Included, pre-set |
| Kit Weight | 8.7 oz |
Specifications
| end_mill_shank | 1/4 inch |
| drill_bit_shank | 1/4 inch |
| drill_bit_diameter | 3/16 inch |
| stop_collar | included |
| material | carbide |
| purpose | milling 80% AR-15 lower receivers |
Best for
- completing 80% lower receivers
- precision milling of AR-15 lowers
- gunsmithing and firearm building
- custom firearm fabrication
Materials
- carbide end mill
- drill bits
- stop collar
- steel components
- hardened tool steel
What's in the box
- custom carbide end mill
- drill bits
- stop collar
Care
Frequently asked questions
- Is it compatible with the 80% AR-15 Easy Jig® Gen 1?
- No, it is not directly compatible with the Gen 1 jig. The Easy Jig® Gen 2 Tool Kit is engineered for the revised template and depth specifications of the Gen 2 system. Using this kit with a Gen 1 jig may result in incorrect fire control pocket dimensions.
- Does this work with a standard drill press?
- It can be used with a drill press capable of secure lateral milling, but a milling machine or router mounted in a jig is the recommended method. The milling operation requires lateral material removal, not just vertical drilling, which can exceed the lateral force tolerance of most drill press spindles.
- How long does shipping take?
- Orders typically ship within 1-2 business days via USPS Priority Mail or UPS Ground. Continental U.S. delivery averages 3-5 business days from shipment confirmation. International shipping times vary by destination and customs processing.
- Can I return it if the tools are used?
- No, used cutting tools cannot be returned for hygienic and safety reasons. Unused tools in original, sealed packaging may be returned within 30 days of purchase, subject to a 15% restocking fee. Always verify jig compatibility before opening tool packaging.