NBS 16″ 5.56 NATO Midlength Nitride M-LOK Builders Kit w/ 5 Magazines
Save 20% MSRP: $749.95$598.79
In stock
NBS 16″ Gov Mid M-LOK Upper Assembly
A quality upper assembly without cutting corners. This means starting with a top tier mil-spec forged upper receiver, using a nitrided steel gas block as opposed to phosphate or aluminum, quality American Made M-LOK handguards and one of the nicest nitrided A2s you’ll find anywhere. This also means taking the time to ensure that the upper will function reliably. We use Permatex 242 on key components while using mil-spec AEROSHELL 33MS Anti-Seize grease on the properly torqued barrel nut and muzzle device.
Bottom line is this: you hear all the time about guys buying a budget upper and it not lasting or having to send it back because of some hardware defect or other issue caused by a careless assembly process. That is why we use top tier components and assemble each unit to the highest standard of quality. We want your upper to function flawlessly out of the box. In fact, we guarantee it will.
Buy with confidence, this upper is backed by our 30 day satisfaction guarantee. Buy it, run it, abuse it, and if you aren’t satisfied you can send it back for a full refund.
Lifetime Warranty
Guaranteed Sub-MOA performance with match grade ammo and proper shooting technique
Made in the USA
NBS .223/5.56 Bolt Carrier Group – Black Nitride
• Caliber: 5.56x45mm NATO/.223 Rem, .300 Blackout
• Finish: Salt Black Nitride
• Bolt: 9310 Alloy Steel (High Hardness)
• Carrier: 8620 Aircraft Grade Steel
• Extractor: Shot Peened and Case Hardened D2 Tool Steel
• Firing Pin: Mil-spec 8740 steel with hard chrome finish
• Gas Key: Mil-Spec w/ properly staked Grade-8 screws & Permatex No. 3 sealed
• Cam Pin: 8620 Steel w/ Black Nitride Finish
• Quality Control: MPI Inspected for QC
NBS AR-15 Mil-Spec Charging Handle
Dirty Bird NOLO AR-15 Complete Lower Receiver
No Logo. No Nonsense. All Quality.
The Dirty Bird NOLO AR-15 Complete Lower Receiver is built for shooters who want a clean, unbranded look and a dependable, budget-conscious foundation without sacrificing materials, fit, or function. Designed with simplicity and value in mind, the NOLO complete lower delivers trusted Dirty Bird quality in a streamlined package that lets your build speak for itself.
At its core is our NOLO forged lower receiver, intentionally free of logos or roll marks on the left side. Machined from 7075-T6 aluminum forgings and finished with a durable hard-coat anodizing, this lower is built to meet mil-spec standards and hold up to real-world use. Whether you plan to leave it clean or customize it with engraving, the NOLO lower provides a blank canvas that does not compromise on strength or reliability.
Each complete lower is professionally assembled using quality, mil-spec components to ensure proper fit, function, and long-term durability. It is an excellent option for builders looking for a cost-effective complete lower that still meets the expectations of a serious AR-15 platform.
Features:
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Machined from 7075-T6 aircraft grade aluminum forgings
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Hard-coat anodized per MIL-8625 Type 3 Class 2
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No logo or roll mark on the left side of the receiver
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Caliber marked “MULTI”
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Safe and Fire selector markings
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Machined to mil-spec dimensions for maximum compatibility
Complete Lower Assembly Includes:
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Mil-spec lower parts kit with machined components
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Mil-spec fire control group
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Standard aluminum trigger guard
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7075-T6 receiver extension
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Carbine buffer and buffer spring
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Mil-spec castle nut and end plate
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A2 pistol grip
- M4 carbine buttstock
If you are looking for a straightforward, affordable complete lower that avoids unnecessary branding while maintaining solid construction and compatibility, the Dirty Bird NOLO Complete Lower is a dependable starting point for your next AR-15 build.
5 Stainless Steel Magazines – .223/5.56 – 30RD
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 | 140 oz |
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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.
