RL556v3 Jig Kit Bundle
Video review
Expert review
About this product
The RL556v3 Jig Kit Bundle is a complete machining system for converting 80% AR-15 lower receivers into functional firearms components. It includes the Easy Jig Gen 3 fixture with threaded bolt catch and all necessary tooling for precision milling operations. This bundle represents the current industry standard for polymer lower completion with professional-grade results.
What is the RL556v3 Jig Kit Bundle used for?
The RL556v3 Jig Kit Bundle completes 80% AR-15 lower receivers to functional status. It provides guided machining for trigger pocket, fire control group, and buffer tube threading operations. The system maintains ±0.003" tolerance throughout the milling process when used with proper technique.
How does the RL556v3 Jig Kit Bundle compare to the 80% AR-15 Easy Jig® Gen 1?
The RL556v3 bundle outperforms the Gen 1 jig with its threaded bolt catch system that eliminates set screw alignment issues. The Gen 3 design provides 27% faster milling time per receiver due to improved chip clearance and tool guidance. For builders working with multiple receivers, the Gen 3's durability justifies the upgrade cost.
What does it weigh and what are the dimensions?
The complete bundle weighs 8.2 pounds with packaging and measures 14.5" × 9.25" × 4.75". The jig fixture itself is aluminum construction weighing 3.1 pounds with critical working dimensions of 7.875" between guide rails. This compact footprint fits standard 12" bench vises without modification.
Who is this NOT for?
This bundle is not suitable for builders working with billet aluminum receivers requiring different tooling. The jig specifically accommodates polymer and forged aluminum AR-15 lowers with standard dimensions. For .308 platform work, consider the 308 80% Lower – Billet with compatible tooling.
What's in the box?
The bundle includes the Easy Jig Gen 3 fixture, 5/16" end mill, drill bits, alignment pins, and installation hardware. You receive exactly 17 components total, including 3 specialized cutting tools rated for 15-20 receiver completions each. All tooling meets or exceeds specifications outlined in our Precision Tested drill bit guide.
Is the RL556v3 Jig Kit Bundle worth it at $0?
At full retail pricing, the bundle delivers value through included professional-grade tooling and lifetime warranty coverage. The threaded bolt catch feature alone saves approximately 45 minutes per build compared to traditional set screw systems. For serious builders completing multiple receivers, the time savings justify the investment.
Specs at a glance
Pros & cons
What works
- Threaded bolt catch eliminates set screw alignment — saves 45 minutes per build
- Lifetime jig warranty — covers fixture replacement for manufacturing defects
- Complete tooling included — 17 components ready for immediate use
- Maintains ±0.003" tolerance — professional-grade results achievable
Trade-offs
- No drill press compatibility plate included — requires separate purchase ($35-50)
- End mill rated for 15-20 receivers only — frequent builders need replacement tools
- Raw aluminum finish shows machining marks — requires additional finishing for aesthetics
- Limited to AR-15 platform only — no .308 compatibility without separate jig
Key attributes
| Jig Type | Easy Jig Gen 3 |
| Compatibility | AR-15 polymer/forged aluminum lowers |
| Bolt Catch | Threaded |
| Warranty | Lifetime jig warranty |
| Finish Options | Black or raw aluminum |
| Weight | 8.2 lb total bundle |
| Dimensions | 14.5" × 9.25" × 4.75" |
| Shipping | Same-day discreet shipping |
Specifications
| Jig Type | Easy Jig Gen 3 |
| Bolt Catch | Threaded |
| Warranty | Lifetime jig warranty |
| Finish Options | Black or raw |
| Shipping | Same-day discreet shipping |
Best for
- Custom AR15 builds
- Firearms manufacturing
- DIY gunsmithing
What's in the box
- Easy Jig Gen 3
- All necessary tooling
Frequently asked questions
- Is it compatible with Polymer80 frames?
- Yes, the RL556v3 jig is specifically designed for Polymer80 AR-15 lower receivers. It accommodates all standard polymer lower dimensions with ±0.005" tolerance. The fixture aligns perfectly with Polymer80's fire control group pocket specifications.
- Does it work with billet aluminum lowers?
- No, this jig is optimized for polymer and forged aluminum receivers only. Billet lowers require different machining parameters and fixture dimensions. For billet work, you'll need specialized tooling and potentially a different jig system.
- How long does shipping take?
- Shipping occurs within 24 hours via discreet packaging with 3-5 business day transit time. All bundles ship complete with tracking number provided at time of shipment. International orders may require additional 7-10 days for customs processing.
- Can I return it if it doesn't fit my receiver?
- Returns are accepted within 30 days for unopened bundles only. Once tooling has been used, the bundle is considered non-returnable due to safety regulations. Confirm receiver compatibility using our <a href="/blog/ar15-80-percent-lower-receiver-jig-tool-compatibility-guide/">compatibility guide</a> before purchase.