Nickel Boron Durability Enhanced AR15 Upper Receiver Kit M-LOK

by Scorpion Armaments
FZ-NBSUBCGMH
Sold out
$610.00
$289.00
The Scorpion Armaments Nickel Boron Stripped Upper Receiver features a tough and durable Nickel Boron coating both inside and out. This coating is even harder than a chrome surface and is extremely durable against corrosion, wear and tear. Known throughout the industry as one of the most reliable finishes for any AR15 part, Nickel Boron is at the pinnacle for AR15 coatings and finishes. Department of Defense testing has shown that this upper receivers coated in Nickel Boron require little to no lubrication, are heat resistant, and can increase the life of your AR15 substantially! Other companies charge hundreds of dollars more for their Nickel Boron parts. Here at 22Mods4All, you can have the high quality, reliable Nickel Boron AR15 Upper Receiver kit for a fraction of competition prices. Machined from 7075-T6 forgings, this upper includes M4 feed ramps for reliable feeding, and accepts all standard AR-15 upper receiver parts and barrels.   Some of the features of our Nickel Boron parts include:
  • Nickel Boron coating gives surface a Rockwell Hardness of Rc70
  • High-lubricity allows smoother metal-on-metal interaction and reduced wear
  • Highly corrosion resistant
  • Slick surface makes cleaning much easier
  • Accepts all standard AR-15 upper receiver components
Included in this Kit:
  1. Scorpion Armaments Nickel Boron AR15 Stripped Upper Receiver
  2. x1 Scorpion Armaments Nickel Boron KeyMod Extended free-float light-weight aluminum handguard (PICK THE LENGTH VIA OPTIONS)
  • Simple installation
  • Super lightweight
  • 7", 10", 12", 15" lightweight models
  • Super slim 1.5 inch outside diameter
  • Three sides of MLOK slots
  • Rugged construction from 6061 aluminum, hard coat anodized for a lifetime of service
  • Fully dehorned for a non-abrasive, comfortable feel
  • Limited Lifetime Warranty
  • 100% Made in Daytona Beach, USA
  • Scorpion Armaments Nickel Boron AR15 Bolt Carrier Group
  • Machined from 8620 Tool Steel (Carrier) and 9310 Carpenter Steel (Bolt)
  • Carrier has forward assist serrations
  • Shrouded firing pin
  • Nickel Boron Coating inside and out (Bolt, Carrier, and Gas Key)
  • Forged Mil-Spec gas key attached with Grade 8 hardware and Properly staked.
  • 5.56 Bolt is shot Peened and MPI
  • Mil-Spec Extractor Spring, black extractor insert, Viton O-Ring
  • Tool Steel Extractor
  • High quality BCG
  • Standard AR15 Charging Handle
  • AR15 upper Receiver Parts Kit
  • Ejection port cover
  • Ejection port cover pin
  • Forward assist kit
All parts are made here in the USA and come with a lifetime limited warranty!

22mods4all works hard to ensure that every package reaches our customers intact and free from fraud or theft. To protect our customers, we offer every order free shipping insurance which guarantees the following: 

If your package is confirmed lost or stolen after shipping, we will replace the package free of charge. 

To provide shipping insurance the customer SHIPPING & BILLING address MUST match during checkout. We will NO LONGER REQUIRE Signature Required for packages, which means, the customer does not have to be home during delivery.

All Uppers and Lowers are built to order and test fired before shipping. Please allow 14-20 days for shipping.

Shipping labels are created shortly after orders are placed. Shipping labels update when the product leaves our facility and are en route to their destination. You will be emailed tracking information when the order leaves our facility. If your tracking number goes beyond the listed lead time please get in contact with us via email or phone and we will look into your issue.