RL556v3 AR-15 80% Lower and Jig Kit
About this product
Built for mil-spec AR-15 uppers, lower parts kits and buffer tubes: the RL556v3 accepts those slides and parts once the receiver is finished, and runs STANAG AR-15 magazines. Bench note on the RL556v3: Threadless pistol grip design specific to Polymer80 lowers; the buffer tube housing is reinforced.
Threadless pistol grip design specific to Polymer80 lowers; the buffer tube housing is reinforced. What ships: RL556v3 80% AR-15 lower receiver with solid core and flared magwell, polymer jig, trigger-hole drill guide, drill bits, end mill.
Sold as an unfinished frame or receiver. Check your state and local law before ordering; we do not ship where unserialized frames are prohibited.
Specs at a glance
Specifications
| Brand | Polymer80 |
| Fits | mil-spec AR-15 uppers, lower parts kits and buffer tubes |
| Magazines | STANAG AR-15 magazines |
| Color options | Black / FDE / Gray / OD Green |
What's in the box
- RL556v3 AR-15 80% Lower and Jig Kit