NBS 20″ 5.56 NATO Nitride M-LOK Rifle Kit

Save 49 % MSRP: $699.99 $499.95 Original price was: $499.95.$359.95Current price is: $359.95.

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NBS 20″ 5.56 Rifle M-LOK Upper Assembly

We set out to make one of the most affordable complete uppers, without sacrificing the integrity of the complete upper, and most important the rifle. The NBS 20″ 5.56 Rifle M-LOK Upper Assembly, is a great all around upper, especially for hunting or long-range target practice. With higher velocity and a longer sight radius with this 20″ barrel, we wanted to make sure that any shooter could take this out and shoot long distances, reliably. This upper features a 20″ NBS Government Contour barrel chambered in 5.56 with a 1:7 twist and a rifle gas system. The government profile is a great way to round out your build and not have an upper too light or too heavy. With the NBS line we wanted to make sure that we used quality products that wouldn’t break the bank. This means using a nitrided steel gas block from APOC Armory as opposed to aluminum and using quality internals like one of our classic NBS 20″ rifle barrels.

Made in the USA

Lifetime Warranty

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 Enhanced AR-15 Mil-Spec Charging Handle

Discount Mil-Spec Lower Build Kit

Surplus 5.56/.223 Lower Parts Kit includes:

Bolt Catch, Bolt Catch Plunger, Bolt Catch Roll Pin, Bolt Catch spring Buffer, Retainer, Buffer Retainer spring Disconnect, Disconnect spring Hammer (black or silver in color), Hammer Pin, Hammer spring Magazine Catch, Magazine Catch Button, Magazine Catch spring Pistol Grip (A2 style), Pistol Grip Lock Washer, Pistol Grip Screw, Pivot Pin, Pivot Pin Detent, Pivot Pin Detent spring Selector, Selector Detent, Selector Detent spring Takedown Pin, Takedown Pin Detent, Takedown Pin, Detent spring Trigger (black or silver in color), Trigger Guard, Trigger Guard Roll Pin, Trigger Pin, Trigger Spring

M4 Style Stock

Discount Mil-Spec Carbine Receiver Extension / Buffer Kit

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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