The PTR 91 GIR is a semi-automatic rifle chambered in 7.62x51mm NATO (.308 Win), with an 18-inch barrel, 40.50-inch overall length, and a 10+1 round capacity. At 9.5 lbs with a green synthetic stock and aluminum receiver, it's a solid HK91-pattern rifle that runs reliably and punches at distance. 
 

Key Specifications 

• Brand: PTR 
• Model: 91 GIR 
• Caliber: 7.62x51mm NATO 
• Action: Semi-Automatic 
• Capacity: 10 Rounds (10+1) 
• Barrel Length: 18 inches 
• Weight: 9.5 lbs. 
• Finish: Green (Classic) 
• Sights: Iron 
• Overall Length: 40.50 inches 
• Stock Material: Synthetic 
• Receiver Material: Aluminum 
• Twist Rate: 1:10" 
   

Detailed Features 

The PTR 91 GIR is built on the same roller-delayed blowback operating system as the original HK91, which has a well-documented track record for reliability. The 18-inch barrel in 1:10" twist handles standard .308 Win / 7.62 NATO ammunition well. Iron sights are standard and give fast target acquisition without requiring optics. The green synthetic stock distinguishes this variant visually from the standard black-finished models and holds up in field conditions. The 10-round magazine ships compliant, but standard HK91-pattern magazines are widely available. 
 

Usage Scenarios 

1. Range Use: The semi-auto action lets you work follow-up shots without losing position on target. The .308 caliber makes it useful for longer-range steel as well. 
2. Hunting: The 7.62x51mm NATO round is appropriate for medium to large game at typical hunting distances. 
3. Home Defense: 9.5 lbs is on the heavier side for interior use, but the caliber and reliable action are effective.

The PTR 91 GIR draws consistent praise for its build quality and the reliability that comes with the HK91-pattern roller-delayed action. The .308 / 7.62x51 chambering is appreciated for long-range capability and stopping power. Accuracy at range is consistently noted as a strength, and many users run it with iron sights and find the setup more than adequate.

Ergonomics generate the most varied feedback. The rifle's weight at 9.5 lbs and the traditional grip design aren't for everyone — some users find it fatiguing during extended sessions, while others are comfortable with it. The adjustable stock and rail compatibility for optics and accessories are seen as practical advantages.

The green finish on this model gets mentioned as a plus for users who want something other than flat black. Aftermarket parts and community support for PTR / HK91-pattern rifles are solid, with an active owner community sharing upgrade paths.

Price comparisons come up regularly. Most users land on "worth it" given the materials and pedigree, but it's worth checking competing .308 platforms if budget is a factor.