Purchase the NBS Sport 7.5″ 5.56 DRP Pistol M-LOK Upper Assembly here!

A quality upper assembly without cutting corners. This means starting with one of the most popular upper receivers that we sell, the Anderson Sport Upper Receiver, which reduces weight by eliminating the forward assist and dust cover and is aesthetically pleasing as well. We also use a steel gas block as opposed to 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

Made in the USA

Take a look at our AR-15 Complete Uppers here!