NBS Premium Series 16″ 5.56 Upper Assembly w/ Rosco Barrel and Geissele MK14 Handguard - 9015
Save 8% MSRP: $629.99$576.95
Out of stock
Built on a top tier 7075 forged upper receiver and fitted with the popular 16″ Bloodline Midlength Nitride Barrel from Rosco Manufacturing, this premium barreled upper assembly is both durable and accurate. Over the years we’ve gotten thousands of 5 star reviews on the NBS line of complete uppers, we’re sure that this premium variant will go fast.
About the Handguard
The MK14 is the latest entry to the Geissele line up of Super Modular Rails. The new handguard design offers a smaller diameter and overall height to create a slimmer package. Included with the MK14 Super Modular Rail is an updated version of the proven Geissele Barrel Nut design, not only providing ease of installation but superior rigidity. The long surface contact of the 2.25″ barrel nut interfaces with the receiver creating a platform that can be trusted to be straight and true the entire length of the free float rail. The MK14 is 3d precision machined using 6061-T6 Aluminum due to its strong, rigid and lightweight properties.
Utilizing Magpul’s M-LOK technology in the 3, 6, and 9 o’clock positions allow the end user full customization and modularity of their rifle to securely mount lights, bipods and other firearm accessories. The Geissele MK14 Super Modular rail is finished in a durable and long lasting Type 3 Hardcoat Anodized available in either Black or Geissele’s DDC finish.
Barrel Information
This 16″ Government 5.56 NATO Mid-Length barrel was designed around the USASOC specs for an Improved Upper Receiver Group with a little bit of the Rosco touch as well. The longer gas system allows for a smoother gas curve which leads to managed dwell times. This combo creates a great balance of speed and performance..
Build Quality
All NBS uppers are 100% made in the USA assembled by experienced, hard working armorers according to modern best practices. No shortcuts are taken and we guarantee a fit and finish that will satisfy even the most discerning builder.
NBS — Our In-House Brand for Builders Who Demand Reliable Performance and Real Value.
Designed for builders who demand reliable performance and real value without unnecessary hype or inflated pricing. NBS stands for "No Bullshit."
Built on Strong Industry Partnerships
Through the strong partnerships AR15Discounts has built with trusted suppliers and vendors, we regularly gain access to premium components often manufactured by or for leading industry names. By purchasing these in volume, we bring them to you under the NBS label, ensuring proven quality reaches your build at a fair price, without the added cost of extensive marketing.
Quality You Can Trust
Every NBS product is specified to the exacting standards we apply to our own rifles. Each component features precision CNC machining, American-made key components where it counts, robust materials, dependable steels, and durable finishes engineered for long-term reliability. These items are either sourced from reputable OEMs or carefully assembled in-house using established name-brand elements, maintaining consistent excellence throughout the lineup.
Complete Solutions for Serious Builders
From stripped and complete uppers to bolt carrier groups, handguards, lower parts kits, and beyond, NBS provides a unified, affordable selection that allows you to complete confident, high-performing builds.
Backed by a Limited Lifetime Warranty
All NBS products come with our Limited Lifetime Warranty for the original owner, covering defects in materials and workmanship. AR15Discounts stands firmly behind these parts because, as shooters ourselves, we use and trust them, delivering honest value and gear you can rely on.
| Weight | 64 oz |
|---|---|
| Dimensions | 28 × 5 × 5 in |
| Barrel Finish | Nitride / Melonite |
| Barrel Profile | Government / SOCOM |
| Cartridge Compatibility | 5.56 NATO |
| Barrel Length | 16" |
| Gas System Length | Midlength |
| BCG / Charging Handle | Not Included |
| MPN | 9015 |
| UPC | 999999015 |
Compliance
NFA (National Firearms Act) compliance is crucial for legal ownership and transfer of regulated firearms and accessories like short-barreled rifles, suppressors, and certain types of ammunition, ensuring adherence to federal regulations to avoid legal penalties and ensure responsible firearm ownership.
Customer Reviews
- Reviews
- Questions
- three hundred
- competion
- exps2 sight
- hornady bthp
- shooting
US
Nbs premium series 16 inch upper
Just got back from the range shooting 75gr hornady bthp. I judge a upper by my ability to drop down from standing and with a hasty sling keep my shots inside the 10 ring on ar15 target at 200 and three hundred. With 40 rounds down the new upper with a exps2 sight install. So far mission accomplished. I know people are internet heroes and show impressive groups with their fingers. Have not met them on any firing line shoot there same groups in competion. May your life be peaceful.
