NBS 11.5" Slick Side 5.56 Nitride-Carbine M-LOK Upper Assembly - 9533
Only 6 left 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.
Lifetime Warranty
Made in the USA
Weight | 48 oz |
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Dimensions | 23.5 × 5 × 5 in |
Barrel Finish | Nitride / Melonite |
Barrel Profile | M4 |
Gas System Length | Carbine |
Barrel Length (inches) | 11.5 |
Barrel Chamber | 5.56 NATO |
Twist Rate | 1-7 |
BCG / Charging Handle | Not Included |
MPN | 9533 |
UPC | 9533 |
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.
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Had to be returned...unsafe barrel obstruction
First off, the second you lay eyes on this upper, you get that it's cheaply made. The finish is thin and in several places on the barrel, there were tooling marks right down to the bare metal. This was for a budget Anderson complete lower so I was ready to be ok with it. Then I inspected the barrel and saw some sort of obstruction inside. No big, I thought, I'll just whip the bore brush through it and it will be good to go. No such luck. The blockage was large enough to keep the brass tip of the bore snake from passing through easily then once the bristles passed, the metallic, sharp obstruction was gouging the fabric of the rest of the snake. No luck removing it, had to be returned and I am glad I looked inside before putting rounds through it and potentially injuring myself or others. Spend the extra $150 and get a good upper such as Aero or Stag.
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