PTR 51
PTR Industries · Pistol · In Production · 2014
Also known as: PTR 51P, PTR PDWR, PTR K3P
Overview
The PTR 51 is PTR Industries' short-barreled .308 roller-delayed blowback platform, a G3K/PDW-pattern firearm configured as a pistol for the US market. Built on the same H&K-pattern tooling as the PTR 91, it uses an 8.5-inch heavy-contour stress-relieved barrel threaded 5/8x24, a stamped-steel receiver with welded steel Picatinny rail, and ships without a stock or brace to maintain pistol classification. It delivers full-power 7.62x51mm in the most compact configuration PTR offers in the caliber.
Specifications
| Weight (empty) | 3583 g (126.4 oz) |
| Overall Length | 597 mm (23.50") |
| Barrel Length | 216 mm (8.50") |
| Action Type | Roller Delayed Blowback |
| Firing Mechanism | Hammer Fired |
| Trigger Type | Single Stage |
| Magazine Capacity | 20 rounds |
| Magazine Type | Detachable Box |
| Muzzle Velocity | 620 m/s (2034 fps) |
| Muzzle Energy | 1900 J (1401 ft·lbf) |
| Effective Range | 200 m (219 yd) |
| Maximum Range | 600 m (656 yd) |
| Barrel Rifling | Right Hand |
| Rifling Twist | 254 mm (10.00") |
| Number of Grooves | 4 |
| Frame Material | Stamped Steel |
| Barrel Material | Chrome Moly Steel |
| Finish | Powder Coat |
Calibers
- 7.62x51mm NATO · primary · 7.62 NATO — also known as .308 Winchester
Features
- Firing modes: Semi Automatic
- Feed systems: Detachable Box Magazine
- Safety mechanisms: Manual Safety Selector
- Features: Roller Delayed Blowback, Stamped Steel Receiver, Fluted Chamber, Heavy Contour Barrel, Steel Picatinny Rail, Threaded Muzzle, G3k Pattern, No Stock, Made In Usa
Variants
- PTR 51P — Pistol
- PTR 51P BR — Folding Brace
- PTR 51P SBR FS — Fixed Stock Sbr
- PTR PDWR — Mlok Pdw
- PTR K3P — 12 5in Barrel
Service history
Operators
- US civilian market · adopted 2014
Production
Production years: 2014-present
Origin
Country of origin: United States
Notes
MSRP approximately $1,759-$1,785. Sold as 51P (pistol), 51P BR (folding brace), 51P FS (fixed-stock SBR), PDWR (M-LOK PDW pistol) and K3P (12.5-inch barrel). Trigger pull 9-10 lbs. Ships with one 20-round aluminum magazine and cable lock.