Description
The PTR PTR-91 GIR .308 Win 18in Green Synthetic 10+1 is a semi-automatic roller-lock rifle built for shooters who demand repeatable accuracy and durability under heavy match schedules. Chambered in .308 Winchester, this 18-inch tapered match-profile barrel delivers consistent velocity spreads and tight groups on steel and paper alike.
| Manufacturer | PTR Industries |
|---|---|
| Model | PTR-91 GIR |
| Material | Steel receiver, green synthetic stock |
| Compatibility | .308 Win / 7.62 NATO magazines (10-round included) |
| Finish | Black parkerized receiver |
| Weight | 8.5 lbs (per manufacturer specs) |
| Condition | New – minor cosmetic wear on stock possible |
Key Features
- Roller-lock delayed blowback action – why it matters: this system absorbs recoil smoothly and keeps the bolt locked until chamber pressure drops, delivering consistent lock-up shot after shot for better accuracy on follow-ups.
- 18-inch tapered match-profile barrel – why it matters: the taper reduces barrel whip during rapid strings, and the match profile ensures uniform bore dimensions for sub-MOA potential with handloads or quality factory ammo.
- Precision-welded top rail – why it matters: mounts any modern optic directly without adapter plates, maintaining zero through heat and thousands of rounds.
- Fixed green synthetic stock – why it matters: lightweight, weatherproof, and provides a consistent cheek weld for repeatable sight alignment in competition or field shooting.
- H&K-style iron sights – why it matters: battle-proven diopter rear and hooded front give a sharp sight picture for fast transitions or precision work without optics.
Who It’s For
This rifle is for the competitor who shoots tactical matches, PRS gas-gun divisions, or heavy-metal classes. It’s also a solid choice for the precision enthusiast who wants a .308 that runs suppressed without tuning gas blocks or pistons.
Pros & Cons
- Pro: Roller-lock design reduces felt recoil and keeps the muzzle flat for faster splits on steel.
- Pro: Parkerized finish holds up to rain, mud, and solvent without rusting under normal use.
- Con: The fixed stock limits LOP adjustment – shooters with shorter arms may need an aftermarket buttpad or stock swap.
Comparison
| Feature | PTR PTR-91 GIR | Geissele Super Duty URGI .308 | Lone Wolf Distributors GMR-10 .308 |
|---|---|---|---|
| Action | Roller-lock delayed blowback | Direct impingement | Short-stroke gas piston |
| Barrel length | 18 inches | 16 inches | 18 inches |
| Weight | 8.5 lbs | 7.8 lbs | 9.2 lbs |
| Rail | Precision-welded top rail | M-LOK free-float | M-LOK free-float |
| Price | $1,550 | $2,100 | $1,800 |
FAQ
What magazines does the PTR-91 GIR use?
It accepts standard PTR-91 / HK G3 pattern steel or polymer magazines. The included 10-round mag is compliant for restricted states, but 20-rounders are widely available.
Does the threaded barrel come with a muzzle device?
Yes, the barrel is threaded 5/8×24 and ships with a standard H&K-style flash hider installed. You can easily swap to a suppressor mount or brake.
Can I mount a scope directly to the top rail?
Yes. The precision-welded top rail is Picatinny-spec and accepts any 1913-compatible rings or one-piece mounts. No adapter needed.
Is the green synthetic stock adjustable for length of pull?
No, it is a fixed-length stock. Shooters needing adjustment can replace it with an aftermarket collapsible or A2-style stock.
Trust & Delivery
- ✓ Nationwide delivery – ships to all 50 states
- ✓ Ships 1-2 business days
- ✓ 30-day returns
- ✓ Secure checkout
Last updated: April 2026
Browse more: Semi Auto Rifles | .308 Win Rifles | Competition Rifles
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