The Black Rain Ordnance Spec+ Zombie is a semi-automatic AR-15 pattern rifle in 5.56x45mm NATO with a black and green finish. It runs a 16-inch barrel with a 1:7" twist, a 30+1 capacity, and comes fitted with a 6-position MFT Minimalist stock. No sights are installed from the factory, so you'll need to add your own optic or iron sights. 
 

Key Specifications 

• Barrel Length: 16 inches 
• Caliber: 5.56x45mm NATO 
• Capacity: 30+1 rounds 
• Weight: 7.30 lbs 
• Finish: Black and Green 
• Manufacturer: Black Rain Ordnance 
• Model Name: Spec+ Zombie / Model: Spec 15 
• Action Type: Semi-Automatic 
• Stock Type: 6-position MFT Minimalist stock 
• Safety Feature: Safety Selector Switch 
   

Features 

The 1:7" barrel twist stabilizes heavier 5.56 projectiles well and handles 62-grain and 77-grain loads without issue. The G.I. trigger is a standard mil-spec unit — functional and predictable, though some shooters will swap it for an aftermarket option eventually. The MFT Minimalist stock is lighter than a standard carbine stock and has six positions, which covers most length-of-pull preferences. 
 
The Zombie branding is the cosmetic differentiator here; mechanically this is a standard AR-15 with BRO's fit and finish, which tends to be clean.

The BRO Spec+ Zombie gets a generally positive reception, with some practical notes mixed in.

Build quality is the most consistent praise. Users report solid fit and finish, tight tolerances, and a rifle that runs reliably without issues out of the box. The aesthetics — the black-and-green Zombie theme — are either a selling point or irrelevant depending on the buyer; people who bought it specifically for the look tend to be happy with it.

Performance at the range draws favorable comments. The semi-auto action is described as smooth, and accuracy is reported as good for a standard AR-15 setup.

Weight comes up as a mild negative. At 7.30 lbs unloaded, it's on the heavier side for a 16-inch 5.56 rifle, which matters if you're running it for extended periods.

Price is occasionally flagged as high relative to similarly-configured AR-15s from other manufacturers, though most buyers who researched BRO beforehand felt the build quality justified the cost.

Accessory and parts availability reflects the niche branding — the underlying AR-15 platform has massive aftermarket support, but Zombie-specific cosmetic parts are limited.