The Zastava USA PAP M90 is a semi-automatic rifle chambered in 5.56x45mm NATO, finished in red with a fixed Serbian red wood stock and grip. The 18.25-inch chrome-lined barrel runs a 1:7" twist, which stabilizes heavier bullets well. At 8.50 lbs it's on the heavier end for a rifle in this caliber, but the build feels solid. 
 

Key Specifications 

• Caliber: 5.56x45mm NATO 
• Action: Semi-Automatic 
• Barrel Length: 18.25 inches 
• Capacity: 30 rounds +1 
• Weight: 8.50 lbs 
• Finish: Red / Black (Fixed Serbian Red Wood) 
   

Features 

• 18.25-inch chrome-lined barrel 
• 1:7" twist rate 
• Adjustable sights 
• Fixed Serbian red wood stock and grip 
   
  The adjustable sights allow quick re-zeroing for different distances. The wood furniture is functional and gives the rifle a look that stands apart from standard black polymer builds. Controls differ from an AR platform, so there is a short learning curve if that's what you're used to.

Owners of the Zastava M90 in red/black tend to like the look — the red-and-black combination draws attention at the range and that's part of the appeal for most buyers who choose it over plainer options.

Accuracy and reliability come up positively in most discussions. Users generally report it runs well for recreational shooting and light tactical use, and the build feels solid. The chrome-lined barrel is noted as a plus for longevity.

The main criticisms are weight and the learning curve on controls. At 8.50 lbs it's heavier than many competing 5.56 platforms, which shows up in extended carry or dynamic drills. The operating controls also differ from the more familiar AR layout, so new owners typically need a few range sessions before things feel natural.

Buyers who know what they're getting — a heavier, AK-influenced rifle in 5.56 with distinctive wood furniture — tend to be satisfied. Those expecting AR-like handling are more likely to find the ergonomics an adjustment.