The Black Rain Ordnance Spec15 is an AR-pattern firearm chambered in .300 Blackout with a 7-inch barrel and a 30-round magazine capacity. It has a Tungsten finish. The 7-inch barrel is a short-barreled configuration; transfer may require additional federal paperwork depending on the registered form factor. 
 

Key Specifications 

• Brand: Black Rain Ordnance 
• Model: Spec15 
• Caliber: .300 Blackout 
• Action: Semi Auto 
• Capacity: 30 rounds 
• Barrel Length: 7 inches 
• Color/Finish: Tungsten 
   

Detailed Features 

• 7-inch barrel chambered in .300 Blackout 
• 30-round magazine capacity 
• Tungsten finish 
• AR-pattern Spec15 platform 
• Compact configuration well-suited to suppressor use with .300 Blackout subsonic loads

Owners of the Black Rain Ordnance Spec15 in .300 Blackout typically choose this configuration with suppressor use in mind. The 7-inch barrel pairs with the .300 Blackout cartridge in a way that gets frequent discussion for subsonic loads, and the Tungsten finish is often noted as a practical choice for durability.

The short barrel makes this a maneuverable platform, and the 30-round capacity is a consistent positive. Recoil with supersonic .300 Blackout loads is more noticeable than with longer barrels, and a few owners mention preferring a longer option for unsuppressed shooting.

Build quality impressions on the Spec15 are generally positive, with owners commenting on the fit of the components. The .300 Blackout chambering in this short configuration is a deliberate niche choice, and buyers who understand that tend to be satisfied. Those expecting a general-purpose carbine sometimes find the limitations of a 7-inch barrel more restrictive than anticipated.