NBS Upper Build Kit w/ Extended Latch Charging Handle

NBS Assembled Upper Receiver

Looking for a top quality Upper Receiver at wholesale prices? Building off of our Best-Selling, 5-Star Rated, NBS Stripped Upper Receiver, the NBS AR-15 Assembled Upper is machined by one of the foremost manufacturers of mil-spec AR-15 components, and then has a Mil-Spec Upper Parts Kit installed, right in America. Normally these assembled uppers are only available to builders when purchased from a name brand at a substantial markup, but we’re making these available at wholesale prices.

Features:

• 7075-T6 Forged Aluminum
• Black Anodized finish
• Flat-Top
• Mil-Spec dimensions for guaranteed fit with any mil-spec lower receiver
• Mil-Spec Forward Assist sourced from a top-tier supplier of the Military and OEM Manufacturers
• Mil-Spec Dust Cover sourced from a top-tier supplier of the Military and OEM Manufacturers
• M4 Feed Ramps

.223/5.56 Bolt Carrier Group – Black Nitride

The .223/5.56 Black Nitride Bolt Carrier Group was designed with strength in mind. Starting with a 9310 Steel Bolt, which is aircraft-grade material, this bolt has a high core strength rating, a high fatigue strength, and a high hardenability rating. 9310 steel, when treated properly, is about 7% better than Carpenter 158 steel, so you know that you will have a dependable BCG, when you drop this into your rifle.

This BCG (Bolt Carrier Group) has been Nitrided, so that it can provide a long-lasting experience, and provide a significant upgrade to your AR-15. These BCG’s have also been Magnetic Particle Inspected and have been made to Mil-Spec Standards. It also has Mil-Spec 8740 Steel hard-chromed Firing Pins, Mil-Spec Gas Keys with Grade-8 screws that are staked and sealed with Permatex No.3, and they have shot-peened case-hardened D2 tool steel extractors.

Technical Specs:

• 223 / 5.56 bolt assembly is compatible with .300BLK as well!
• Fully mil-spec construction
• Durable Nitride finish
• 9310 steel bolt is MPI tested
• 8620 steel full-shroud M16 style bolt carrier
• Properly staked gas key

NBS Billet AR-15 Extended Latch Charging Handle

The NBS Billet AR-15 Extended Latch Charging Handle starts with an improved mil-spec style handle machined from 6061-T6 Billet Aluminum. We find that billet gives us a more rigid handle and we don’t have to worry about inconsistent forgings. Rapid, single handed charging using the support hand tends to produce off-axis stress, this makes rigidity one of the most important attributes of a charging handle. The extended latch is also machined from billet aluminum.

This Extended Latch Charging handle is perfect for shooters who run scopes which impede access to the latch of a mil-spec style charging handle. The extended latch is also a practical enhancement for both competitors and combat minded shooters, allowing shooters to run the weapon faster.

Every component of this charging handle is made right here in the USA.

• Mil-Spec Style Handle Machined from 6061-T6 Billet Aluminum
• Light-weight Extended Latch for Ease-of-use
• Smooth Operation and Positive Grip under Extreme Conditions
• Type 3 Class 2 Hard Coat Anodizing
• Fits: AR-15