The RL556v3 white lower is Polymer80’s answer to polymer AR receivers done right. Their proprietary composite material holds up where it counts – reinforced buffer tower, flared magwell, and solid core construction prevent the weak points that plague cheap polymer lowers. The threadless grip design means no fighting with stripped grip screw holes.
This isn’t a “drill three holes and call it a day” 80%. You’ll need to mill out the fire control pocket properly using the included jig and end mill. Comes with everything required except a router. White finish shows less handling marks than black during milling.
Good for lightweight builds where you want to avoid aluminum’s weight but don’t trust bargain-bin polymer lowers.
Product Details
The RL556v3? features Polymer80?s proprietary polymer composite, a solid core design, flared magwell, and beefier mil-spec buffer tube housing. The pistol grip area features a unique threadless design specific to Polymer80 rifle lowers.\n\n\nThe kit includes:\n\n\n80% Polymer AR15 Lower Receiver (Mil-spec)\nPolymer Jig\nTrigger Hole Drill Guide\nDrill Bits and End Mill\n\n \n\nAvailable colors:\n\nBlack, White, FDE, OD Green, Gray

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