NBS 7.5″ 5.56 DRP Pistol M-LOK Upper Assembly
In stock
A quality upper assembly without cutting corners. This means starting with a top tier mil-spec forged upper receiver, using a steel gas block as opposed to aluminum, quality American Made M-LOK handguards (handguard style may vary) 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.
Handguard style may vary from batch to batch
Lifetime Warranty
Made in the USA
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 | 48 oz |
|---|---|
| Dimensions | 19.5 × 5 × 5 in |
| Barrel Finish | Nitride / Melonite |
| Cartridge Compatibility | 5.56 NATO |
| Barrel Length | 7.5 |
| Gas System Length | Pistol |
| Twist Rate | 1-7 |
| BCG / Charging Handle | Not Included |
| UPC | 999997820 |
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
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US
Great budget pistol upper
Runs with no issues, had to get a separate charging handle and bcg but the combination I threw together runs very well with no issues
USGreat upper
Fast delivery on Time
USNice
Very Nice piece. Would recommend.
US
Outstanding Upper
Ordered this and paid for the fast shipping and had it within a week. Took off the rail to add a can and was happy to see a BA barrel. I put a 100 rounds of .223 55gr at the indoor range @ 25 yds and 3 rd groups were touching. Flatwire spring and H3 buffer almost zero felt recoil and ran like a champ. Also worked well with 22lr kit. Perfect for what I wanted. Thanks.
USEXCELLENT VALUE & UPPER
Very happy with my new AR15DISCOUNTS .223/5.56 PISTOL UPPER. Fast shipping and great communication. Already bought another one.
