Welcome! This upper has seen little use and is consequently being sold to fund other projects. I will be shipping everything FedEx ground, and insured. I will only ship to the lower 48 states and make sure to know your state laws and if you are able to own these items.
Payment: I accept Paypal (sent as a “gift” or a 3% fee will be added) and US PO money order. On case by case basis I will take cashiers and personal check, but will hold shipment until check clears.
Advanced Armament 16" 300 BLK Complete Upper
[b]Price: $825.00 shipped OBO. That’s over $150.00 in savings!
Details: This upper is MINT! It seriously has less than 45 rounds through her. It was never shot full auto or suppressed and only shot at a slow rate to sight in the iron sights. This is an absolute steal for someone![/b]
Factory specs:
This complete upper assembly makes it easy to convert your 5.56mm AR to 300 AAC BLACKOUT (7.62x35mm).The complete upper comes with the New Knights Armament URXII Rail that has a 4150 steel barrel features a black nitride finish (including bore and chamber), it has the NEWER 1:7" twist for super- or sub-sonic use. It comes ready for silencer use, threaded 5/8-24 and comes with the 51T Blackout Flash Hider. The bolt carrier group is the NEWER Ni-B Bolt Carrier (Detailed info below).THIS UPPER DOES COME WITH THE KAC URX II RAIL (SAME RAIL AS IN PICTURE)Detailed Info on Bolt:
The carrier and cam pin are Ni-B. The bolt is conventional.Nickel Boron (Ni-B) UCT EXO coating has a very high hardness and lower friction than either Chrome or Nickel Teflon. There is a base layer of high-phospherous Electroless Nickel which ensures the extreme corrosion protection absent from other Nickel Boron carriers that use a single, thinner layer.Base material is highly polished before coating to ensure the smoothest surface finish.Carrier and cam pin dimensions are custom machined to account for the thicker coatings rather than the more common process of simply coating a conventional carrier with a thin layer.Carpenter 158® phosphated shot-peened bolt to ensure precise dimensions with no concerns for hydrogen embrittlement in the critical lug area.Special green o-ring tested to not bind even at -40 degrees F.Extractor spring made from premium ultra-strong wire - low fatigue design ensures the longest possible life.Extractor pin made from 300 ksi S2 tool steel - not the much lower strength S7 more commonly used.Properly-staked carrier-key with Permatex® gasket-seal compound ensures no gas leakage.
Pictures:
16” AAC 300 Blackout upper






