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NBS 14.5" (16" Overall) Mid-Length 5.56 NATO 1:7 Complete Upper w/ FSB and Pinned VG6 Precision Epsilon Muzzle Brake

by NBS
Save 12%

This version of our 14.5" NBS Mid-Length Upper w/ FSB features a pinned VG6 Precision Epsilon Hybrid Muzzle Device for a legal 16" overall barrel length.

This is the next release in our line of NBS Complete Uppers. We like to think of it as the ultimate truck gun. We build a lot of ARs and our favorites, the ones that we like the most and perform the best are the ones we decide to sell (and yes there are more coming). This is an example of that. We love this configuration and it fits right in with our no bullshit approach. It is built on an Aero Precision Upper Receiver with a Nitride Ballistic Advantage Government Profile 14.5" barrel paired with the excellent APOC Armory Black Nitride BCG.  The gas block is nitrided, the gas tube is nitrided, damn near everything is nitrided. Racking is facilitated using a Strike Industries Extended Latch Charging Handle. And if you haven't handled a rifle with this Magpul SL Handguard, you're missing out. We love a beautiful free-floated rail as much as the next guy but this thing is just so solid and so comfortable in the hand. We topped it off with one of the best hybrid muzzle devices you can get, the VG6 Precision Epsilon. This thing tames recoil and muzzle rise with the best of them plus it is pinnable which makes it 16" overall for use in restricted states. 

Made in the USA - Lifetime Warranty

Upper Receiver

Aero Precision
- 7075-T6 aluminum
- M4 Feedramps
- .250 takedown pin holes


Ballistic Advantage 14.5" 5.56 NATO 1:7 Twist
- Midlength Gas Stystem 
- Pinned FSB
- QPQ Nitride Finish
- Guaranteed to hold a 1.000" MOA or better at 100 yards with appropriate ammo and shooting techniques.

Bolt & Carrier Group

APOC Armory Black Nitride M16 Bolt Carrier Group .223/5.56
- Full Auto Capable
- 9310 MPI and HPT Tested Bolt
- 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

Strike Industries Extended Latch Charging Handle

Gas System

- Pinned Front Sight Base
- Melonite Gas Tube


Magpul SL MLOK Handguard - Black

 Muzzle Device VG6 Precision Epsilon


Please note: As with many other top of the line 14.5" mid-length uppers this is one of the smoothest shooters around but it does prefer quality ammo (read more). If you feed it underpowered (the cheapest of the cheap) ammo you may experience some short stroking. Any mil-spec powered ammo will be fine but if you want to shoot the cheaper stuff (no judgement), we recommend lightening the buffer weight. The KAK Configurable Buffer is perfect for that.