Polymer80 RL556v3 80 Percent AR15 Lower Receiver Kit with Jig
SKUFC-7465
$121.25 $103.06
About this product
If you already own a slide or upper for mil-spec AR-15 uppers, lower parts kits and buffer tubes, the RL556v3 is the AR-15 80% option that matches it. FrameCraft lists the RL556v3 together with the lower parts kit and buffer assembly a builder still needs after the frame is done.
What you get
- RL556v3 80% AR-15 lower receiver with solid core and flared magwell
- Polymer jig
- Trigger-hole drill guide
- Drill bits
- End mill
What you still need
A drill, a vise and, for AR lowers, ideally a drill press. Parts kits and slides are on the shop page sorted by frame. Threadless pistol grip design specific to Polymer80 lowers; the buffer tube housing is reinforced. Magazines: STANAG AR-15 magazines.
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
- Polymer80 RL556v3 80 Percent AR15 Lower Receiver Kit with Jig
Sources & methodology.
Editorial review and rating by
Caleb Vance
based on hands-on testing notes and published vendor specifications.
Pricing verified at time of publication.
From the journal
Related reading
$121.25 $103.06