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NBS 16" 5.56 SOCOM Quad Rail Complete Upper - 3683

$329.95

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SKU: 3683 Categories: , ,
Description

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. This upper features a 16″ NBS SOCOM barrel chambered in 5.56 NATO with a 1:7 twist and a midlength gas system. 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 the NBS Black Nitride BCG paired with one of our classic NBS 16″ Midlength Barrels.

Made in the USA

Lifetime Warranty

Upper Receiver Anderson
– 7075-T6 aluminum
– M4 Feedramps
– .250 takedown pin holes
Barrel NBS 16″ 5.56 NATO SOCOM1:7 Twist Midlength Black Nitride
– Guaranteed to hold a 1.000″ MOA at 100 yards with appropriate ammo and shooting techniques.
Bolt & Carrier Group NBS Black Nitride M16 Bolt Carrier Group .223/5.56
– Full Auto Capable
– 9310 MPI and HPT Tested bBolt
– Case Hardened 8620 Carrier
– 4130 Gas Key
– Grade 8 Hardware With Proper Staking
– Gas Key Sealed With Permatex No.3
– 8740 Hard Chrome Firing Pin
Charging Handle Standard Charging Handle
Gas System Midlength
– APOC Armory Nitrided Steel Gas Block
– Stainless Steel Midlength Gas Tube
Handguard 12″ Free Float Quad Rail – Black
Muzzle Device Mil-Spec A2 Birdcage
Additional information
MPN

3683
Barrel Finish

Nitride / Melonite
Barrel Profile

Government / SOCOM
Gas System Length

Midlength
Barrel Length (inches)

16
Barrel Chamber

5.56 NATO
Twist Rate

1:7
BCG / Charging Handle

Included
Brand

nbs
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