Description
The PTR-91 GIR .308 Win 18in Parkerized Green Synthetic is a semi-auto rifle built on the proven H&K-style roller-delayed blowback platform, chambered in .308 Winchester / 7.62×51 NATO. With an 18-inch tapered match barrel, parkerized finish, and fixed green synthetic furniture, this rifle delivers consistent accuracy and reliable cycling for precision shooting and high-volume range sessions. Per PTR Industries specs, the welded Picatinny scope mount and threaded muzzle with flash hider make it ready for optics and muzzle devices out of the box.
| Specification | Details |
|---|---|
| Manufacturer | PTR Industries |
| Model | PTR-91 GIR |
| Material | Steel receiver, green synthetic furniture |
| Compatibility | .308 Win / 7.62×51 NATO |
| Finish | Parkerized |
| Weight | 8.5 lbs (per manufacturer specs) |
| Condition | New or reconditioned (furniture condition may vary) |
Key Features
- Roller-Delayed Blowback Action – The H&K-derived roller-lock system reduces felt recoil by 20% compared to direct impingement, keeping your sights on target for faster follow-up shots.
- 18-Inch Tapered Match Barrel – The H&K-profile barrel is hammer-forged for longevity and tapered to minimize barrel whip, delivering sub-MOA accuracy with match-grade .308 ammo.
- Welded Picatinny Scope Mount – No aftermarket adapters needed; this integral rail accepts standard 1913 rings and holds zero through thousands of rounds.
- Threaded Muzzle with Flash Hider – 5/8×24 threads let you attach brakes, suppressors, or compensators, and the included flash hider reduces signature in low-light competition stages.
- Fixed Green Synthetic Furniture – The green polymer stock and handguard are impact-resistant and chemically resistant to solvents, with a textured grip surface for sweaty hands.
Who It’s For
This rifle is built for the competition shooter who wants a .308 platform that runs flat, hits hard, and holds up to high round counts. If you shoot PRS, tactical matches, or long-range steel, the PTR-91 GIR gives you the reliability of a roller-lock with the accuracy of a match barrel. It also suits precision enthusiasts who prefer a battle-proven action over AR-10 variants.
Pros & Cons
Pros: Rock-solid roller-delayed action, integral Picatinny mount saves money and adds stability, parkerized finish resists corrosion in humid match environments, threaded barrel expands muzzle device options.
Cons: The fixed synthetic furniture limits stock adjustments for length of pull or cheek height, and some units are reconditioned – check condition notes before ordering.
Comparison: PTR-91 GIR vs. Geissele Automatics Super Duty vs. Zev Technologies OZ9
| Feature | PTR-91 GIR .308 | Geissele Super Duty 5.56 | Zev OZ9 9mm |
|---|---|---|---|
| Caliber | .308 Win / 7.62×51 | 5.56 NATO | 9mm |
| Action | Roller-delayed blowback | Direct impingement | Striker-fired |
| Barrel Length | 18 in | 14.5 in | 5.0 in |
| Weight | 8.5 lbs | 6.9 lbs | 1.8 lbs |
| Optics Mount | Integral Picatinny | M-Lok + pic rail | RMR cut |
| Best Use | Long-range / PRS | Carbine / 3-gun | Pistol / PCC |
| Price | $1,460.77 | $1,850 | $1,600 |
The PTR-91 GIR offers a lower price point for a .308 battle rifle than the Geissele Super Duty, and its roller-lock system is more forgiving of dirty ammo than direct impingement. The Zev OZ9 is a pistol, not a direct competitor, but it shows the range of options – if you want a long-range .308, the PTR is the clear choice.
FAQ
Is the PTR-91 GIR reliable with steel-case .308 ammo?
Yes, the roller-delayed action is designed to handle a wide pressure range, including steel-case 7.62×51 NATO. The parkerized finish and robust extractor keep it running even with dirty, lacquered ammunition.
What is the twist rate on the 18-inch barrel?
Per PTR Industries specs, the barrel has a 1:12 twist rate, optimized for bullet weights from 147 to 175 grains – the sweet spot for competition .308 loads.
Can I mount a suppressor on the threaded muzzle?
Yes, the 5/8×24 threads are standard for .30-caliber suppressors. Use a direct-thread or QD mount adapter. Note that the roller-lock action can be gassier than DI guns, so a high-flow can is recommended.
Are the synthetic stocks compatible with H&K parts?
The fixed green synthetic furniture is proprietary to PTR but uses the same interface as H&K 91 stocks. Aftermarket H&K stocks will fit with minor fitting.
Trust & Shipping
- ✅ Nationwide delivery (all 50 states)
- ✅ Ships 1-2 business days
- ✅ 30-day returns
- ✅ Secure checkout (256-bit SSL)
Last updated: April 2026
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