UX-15 Skeletonized Lower Receiver

Was: $274.99
Now: $206.25
(2) Write a Review

Product Description


Compatible with most MIL-SPEC AR-15 upper receivers, this patented stand-alone lower receiver is among the lightest available on the market. Like all other WATCHTOWER components, the UX-15 lower receiver is manufactured from 7075-T6511 billet aluminum with meticulous skeletonization. A lightweight, aesthetically pleasing frame available in a black anodized finish with the front and rear takedown pins included. 

UDR-15 Lower Information:

  • Manufactured from high-grade 7075-T6 billet aluminum
  • Unnecessary surfaces milled out for lightest reliable configuration
  • Oversized trigger guard
  • 60° beveled magwell
  • Black - type III anodized
  • WATCHTOWER 100% Product Guarantee


Other Details



  • 5

    Posted by Clayton Hadden on Jan 24th 2024

    Bought this for a unique lightweight project; 300blk straight pull bolt action handgun. The lower is above my expectations in every way. The attention to detail and the pre installed takedown pins and threaded bolt stop retainer are amazing. The weight is unbelievable while still feeling secure, solid, and precise. True purpose driven skeletonization that cuts weight only where it should be. Will definitely be buying another for my next build.

  • 5
    UX 15 Lower

    Posted by Brayden Grams on Jan 12th 2024

    This lower is definitely worth $250! The tolerance’s are beyond great! I bought the Type one upper a couple years ago so i’m glad i finally paired it with its brother and this rifle is beyond light now! Only disappointed with not getting a sticker:( DID GET A SWEET PATCH THOUGH!!