TNTE Custom

604 A1 M4 Ramped Slab (Slick) Side Upper Receiver Complete

Forged M16 Upper Receiver from USGI Contractor, Model 604 "Slick Side", Black Type 3 Hard coat Mil Spec Anodized, 7075 T6 Aluminum, M4 Feed Ramps, Assembled with new production rear sight.

604 A1 Slab (Slick) Side Upper Receiver Complete

Forged M16 Upper Receiver from USGI Contractor, Model 604 "Slick Side",  Black Type 3 Hard coat Mil Spec Anodized, 7075 T6 Aluminum,  A2 Barrel Extension, No M4 Feed Ramps, Assembled with...

604 A1 Slab (Slick) Side Upper Receiver Stripped

Forged M16 Upper Receiver from USGI Contractor, Model 604 "Slick Side", Black Type 3 Hard coat Mil Spec Anodized 7075 T6 does not have M4 Feed Ramps, interior is dry film lube coated.

604 A1 Slab (Slick) Side Upper Receiver w/ M4 Ramps Stripped

Forged M16 Upper Receiver from USGI Contractor, Model 604 "Slick Side", Black Type 3 Hard coat Mil Spec Anodized 7075 T6 does have M4 Feed Ramps, interior is dry film lube coated.

604 M-16A1 AR-15A1 1/12 Upper

Here is one of our favorite custom builds. We decided to try and rebuild the old school USAF 604. These are using a true 20" .625 pencil barrel with a 1/12 twist. The barrel is made...

604 M-16A1 AR-15A1 1/14 Upper

Here is one of our favorite custom builds. We decided to try and rebuild the old school USAF 604. These are using a true 20" .625 pencil barrel with a 1/14 twist. The barrel is made...

604 M-16A1 AR-15A1 1/7 Upper

Here is one of our favorite custom builds. We decided to try and rebuild the old school USAF 604. These are using a true 20" .625 pencil barrel with a 1/7 twist. The barrel is made of 41V50...

604 M-16A1 AR-15A1 Upper 1/12 No Handguards

Here is one of our favorite custom builds. We decided to try and rebuild the old school USAF 604. These are using a 20" .625 lightweight barrel with a 1/12 twist. The barrel is made...

604 M-16A1 AR-15A1 Upper 1/7 No Handguards

Here is one of our favorite custom builds. We decided to try and rebuild the old school USAF 604. These are using a 20" .625 lightweight barrel with a 1/7 twist. The barrel is made of 41V50...

6MM ARC 18" 604 M-16A1 1/7 Upper

We've had a ton of requests for more Retro Mod uppers. This 6MM ARC upper gives performance and retro styling.      Specs:   Upper: TNTE Anchor Harvey, Performance Forge,...

6MM ARC 20" 604 M-16A1 1/7 Upper

We've had a ton of requests for more Retro Mod uppers. This 6MM ARC upper gives performance and retro styling.      Specs:   Upper: TNTE Anchor Harvey, Performance Forge,...

9mm M-4 Upper

The M4 9mm upper features a 16.1" 4140 CrMo steel barrel in a M4 profile. The standard configuration includes a "F" marked front sight base and M4 type hand guards. Includes spikes 9mm bcg and...