Product Description

Here is one of our favorite custom builds. These are using a true Mid-Length Gas 14.5" barrel with a 1/7 twist. The barrel is made of 41V50 steel and the chamber/bore is QPQ. We use a Extended A2 Bird cage flash hider on it then pin and weld to complete compliance with the 16" OAL length rule. By doing so this is not a NFA/SBR item. A2 Upper receiver is black finished with M4 ramps and Dry Film Lube. Handguards are single wall Mil-Spec.

The 80's and 90's saw major changes to the modern duty rifles carried by US forces. Most notable the adoption of the carbine gas system and shorter barrel over the longer rifles. These advancements where directly related to the requests from special forces units such as SOF-D, Army Rangers, and Navy SEALs. The 723 and 727 were the precursor to the modern M4 we all know today.  

Specs: 

Upper: TNTE 7075-T6 A2 with Black Type III hard coat with M4 ramps  

Barrel: TNTE 14.5" 5.56 1/7 QPQ Pencil barrel with 1/2x28 thread 

Gas System: Mid

Gas Block: Pinned on standard height A2 FSB  

Handguard: Two Piece Carbine 

Flash Hider: Extended A2 

BCG: Optional 

Charging Handle: Optional

Take a look at this great article about our upper http://www.gunsandgunsmiths.com/retro-ar-project/