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NBS 18" .223 Wylde 1:8 Complete Upper

by NBS
Save 12%

If you're building a bench gun, a tack-driver that runs smooth like a Cadillac, this is your upper. As with our other NBS complete uppers, we've carefully chosen proven components from reputable suppliers. At it's core this unit features a 18" 416R Stainless Barrel chambered in .223 Wylde with a 1:8 twist paired with APOC's Beautiful Nickel Boron BCG. When it comes to any weapon the little things matter. And true to our promise of never cutting corners, we always dimple our barrels, use a quality nitrided steel gas block and stainless steel gas tube. For this particular upper we chose the highly regarded UTG Pro Super Slim M-LOK handguard and finished it off with an APOC Armory Competition Muzzle Brake to keep muzzle rise and felt recoil to an absolute minimum. This isn't a cheap upper that you'll buy and end up replacing every component before you're happy with it. Each part can already be considered an upgrade over what many budget uppers use.

American Made - Lifetime Warranty

Upper Receiver

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


18" .223 Wylde 1:8 Twist
- Shoots both .223 and 5.56
- Mid-Length Gas System 
- Heavy Barrel
- 416R Stainless Steel
- Spiral Fluted

Bolt & Carrier Group

APOC Armory Nickel Boron 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

- APOC Armory Black Nitride Steel Lo-Pro Gas Block
- Stainless Steel Gas Tube


15" UTG Pro Super Slim M-LOK - Black

 Muzzle Device APOC Armory Black Nitride Competition Muzzle Brake