All machining processes for our SK-ultra skeletonized AR9 80% Lower are completed other than drilling/milling the FCG (Fire Control Group) pocket and trigger slot, and drilling the Selector switch, Trigger and Hammer pin holes.
SK-Ultra Skeletonized AR-9 80% Receiver Set Includes:
– Ltd lifetime warranty against manufacturer defects
Upper Receiver:
– CNC Machined from 6061-T6 Billet Aluminum
– Sleek and low-weight No-FA slick-side design
– LightWeight (inset) and Skeletonized Faces on Sides
– Accepts standard ejection port cover, pin and spring
– Close in slim-line case deflector
– Built to mil-spec dimensional standards
Lower Receiver:
– CNC Machined from 6061-T6 Billet Aluminum
– Rear lug pocket already machined
– No Fire/Safe engravings are present
– Skeletonized FCG Faces and Mag-well
– Integral trigger guard for added overall strength
– Machined (not broached) Mag-well with wide flare
– Accepts Colt AR9 style Magazines (Not Glock)
– Which makes it Last Round Bolt Hold Open (LRBHO)
– Bolt release pin hole Drilled and Tapped 6-32
Optional:
– AR9 Colt Parts Kit (Feed Ramp, Ejector, Bolt Catch)
– 7075-T6 Billet Aluminum (when Available)
– Ambi Bolt Release (Shown)
– Glass Bead Blasted finish
– Black Anodized (Shown)
– Standard Cerakote colors:
Burnt Bronze
Magpul FDE
Graphite Black
OD Green
Tungsten Grey
– or a Custom Cerakote Color [View Here]
Shipping Restrictions:
Although not generally restricted, you should refer questions regarding manufacture, NFA Regulations, and individual state regulations to the BATFE, your local law enforcement or obtain legal guidance prior to manufacturing.
No FFL Required! This SK-Ultra Skeletonized AR15 80% receiver set can be securely purchased from our website, and shipped direct to your home or business. (See the Shipping/Returns webpage for updated Shipping Restrictions)
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