Keep your AR build “light in the lower” while retaining its strength and integrity with the RL556v3 by Polymer80. This polymer made 80% lower receiver features a solid core design, flared magwell, and beefier mil-spec buffer tube housing to ensure your AR can take everyday wear and tear.
For instructions on using the 80% Lower Receiver Jig, click here.
The RL556v3 Kit Includes:
- 80% Polymer AR15 Lower Receiver (Mil-spec)
- Polymer Jig
- Trigger Hole Drill Guide
- Drill Bits and End Mill
Why a Polymer AR-15 80% Lower?
Polymer 80% lowers have been well-tested and proven among the AR-15 and 80% lower community. This ultralight lower affords the same ruggedness as any aluminum lower, yet its construction also affords many unique benefits.
If you’re nervous about machining an 80% lower, this polymer lower will be the perfect way to ease into the practice. Polymer is incredibly simple to drill and mill, and the material is forgiving.