SK-Ultra Skeletonized Ambi AR-15 Receiver Set [Options]

Original price was: $399.99.Current price is: $349.94.


Get a top quality SK-Ultra Skeletonized ambi AR-15 receiver sets for sale now at an affordable price. Our stripped AR 15 receiver sets are precision machined from billet aluminum.

6061 or 7075 *

Coating Options *

Custom Cerakote Color [If Selected]

Bolt Catch Pin Hole *

FFL Dealer Info

Product price
Additional options total:
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We now offer our classic SK-Ultra skeletonized ambi bolt release AR15 upper and lower set as a complete and serialized version.

SK-Ultra Skeletonized Ambi AR Receiver Set Includes:

– Ambi lever, spring, pin, and plunger shaft
– Bolt Catch Not Included
Ltd lifetime warranty against manufacturer defects

Lower Receiver:
– Ambidextrous Bolt Release
– CNC Machined from 6061-T6 Billet Aluminum
– No Fire-Safe Engravings
– Skeletonized FCG Faces and Mag-well
– Integral trigger guard for added overall strength
– Machined (not broached) Mag-well with wide flare

Upper Receiver:
– CNC Machined from 6061-T6 Billet Aluminum
– Accepts standard ejection port cover, pin and spring
– LightWeight (inset) and Skeletonized Faces on Sides
– Sleek and low-weight No-FA slick-side design
– Close in slim-line case deflector
– Built to mil-spec dimensional standards


– 7075-T6 Billet Aluminum (when Available)
– Bolt release pin hole Drilled and Tapped 6-32
– Glass Bead Blasted Finish
– Black Anodized
– Standard Cerakote colors:
Burnt Bronze, FDE, Graphite Black, OD Green or Tungsten Grey [Shown]
– Custom Cerakote Color [View Here]

Shipping Restrictions:

Must be 21 years or older to order. Although not generally restricted, you should refer questions regarding legal ownership in your state, NFA Regulations, and individual state regulations to the BATFE or your local authorities, or obtain legal guidance prior to purchasing. All NFA Rules apply.

FFL Required!  This SK-Ultra Skeletonized ambi AR15 upper lower receiver set stripped can only be shipped to a licensed FFL dealer.  Please add your FFL dealer contact info to the Option dialog at the top of this page, or we will contact you by email after ordering.  No Shipments to any state or locality where restricted. (See the Shipping/Restrictions webpage for updated Shipping Restrictions)