
Availability: In Stock
Current Stock: Out of stock
The PTR 91 51P PDWR .308 Win 8.5" MP5-style pistol delivers modern rifle caliber firepower in a compact, maneuverable platform. Built on the proven delayed blowback roller-lock system, this short-barreled powerhouse chambers .308 Winchester and feeds from 20-round magazines, making it a serious option for shooters who want precision rifle performance in a pistol-length package. Whether you're setting up a truck gun, a home-defense rifle, or a specialized range rig, the 51P PDWR cuts through the noise with genuine engineering—not compromise.
The 8.125-inch match-grade bull barrel is threaded 5/8x24, ready for suppressors or the included H&K Navy-type flash hider. The MP5-inspired ergonomics include a wide polymer handguard and polymer trigger group that should feel familiar if you've run modern tactical rifles. At 7.8 pounds and 23.5 inches overall, it's built to move with you, not against you. The machined butt cap is drilled and tapped for an AR15 tube-style stock adapter, giving you flexibility to configure the platform to your needs. You get a paddle magazine release for speed, welded picatinny rail for optics, and sling swivel for field carry.
This is a rifle-caliber pistol for shooters who understand what that means—it's not a carbine with the stock removed, it's a purpose-built delayed-blowback design proven in decades of international service. The PTR 91 line honors that legacy while keeping things straightforward: solid materials, no unnecessary features, and reliability that doesn't depend on hype.
| Caliber | .308 Winchester |
| Action | Delayed Blowback Roller-Lock |
| Barrel Length | 8.125 inches |
| Barrel Profile | Match-grade bull barrel |
| Barrel Threading | 5/8x24 |
| Overall Length | 23.5 inches |
| Weight | 7.8 pounds |
| Magazine Capacity | 20 rounds |
| Handguard | Wide polymer |
| Trigger Group | Polymer (MP5-style) |
| Magazine Release | Paddle |
| Stock Interface | Butt cap drilled and tapped for AR15 tube adapter |
| Rail | Welded picatinny |
| Muzzle Device | H&K Navy-type flash hider (included) |
| Finish | Black |
The PTR 91 51P PDWR comes with the pistol, a 20-round magazine, and an H&K Navy-style flash hider already fitted to the muzzle.
The butt cap is drilled and tapped to accept an AR15 tube-style stock adapter, which allows for configuration options. Always verify your build complies with federal and local regulations before making any modifications.
Yes, the barrel is threaded 5/8x24, a common thread pitch for .308 suppressors. The H&K Navy-style flash hider is already installed.
The delayed blowback roller-lock system cycles by design rather than relying on gas tubes or pistons. This PTR 91 platform uses a proven roller-lock mechanism that's been in service worldwide. It's known for smooth operation and consistent function across conditions.

SKU: 120921062 • Weight: 9.5oz





Availability: In Stock
Current Stock: Out of stock
The PTR 91 51P PDWR .308 Win 8.5" MP5-style pistol delivers modern rifle caliber firepower in a compact, maneuverable platform. Built on the proven delayed blowback roller-lock system, this short-barreled powerhouse chambers .308 Winchester and feeds from 20-round magazines, making it a serious option for shooters who want precision rifle performance in a pistol-length package. Whether you're setting up a truck gun, a home-defense rifle, or a specialized range rig, the 51P PDWR cuts through the noise with genuine engineering—not compromise.
The 8.125-inch match-grade bull barrel is threaded 5/8x24, ready for suppressors or the included H&K Navy-type flash hider. The MP5-inspired ergonomics include a wide polymer handguard and polymer trigger group that should feel familiar if you've run modern tactical rifles. At 7.8 pounds and 23.5 inches overall, it's built to move with you, not against you. The machined butt cap is drilled and tapped for an AR15 tube-style stock adapter, giving you flexibility to configure the platform to your needs. You get a paddle magazine release for speed, welded picatinny rail for optics, and sling swivel for field carry.
This is a rifle-caliber pistol for shooters who understand what that means—it's not a carbine with the stock removed, it's a purpose-built delayed-blowback design proven in decades of international service. The PTR 91 line honors that legacy while keeping things straightforward: solid materials, no unnecessary features, and reliability that doesn't depend on hype.
| Caliber | .308 Winchester |
| Action | Delayed Blowback Roller-Lock |
| Barrel Length | 8.125 inches |
| Barrel Profile | Match-grade bull barrel |
| Barrel Threading | 5/8x24 |
| Overall Length | 23.5 inches |
| Weight | 7.8 pounds |
| Magazine Capacity | 20 rounds |
| Handguard | Wide polymer |
| Trigger Group | Polymer (MP5-style) |
| Magazine Release | Paddle |
| Stock Interface | Butt cap drilled and tapped for AR15 tube adapter |
| Rail | Welded picatinny |
| Muzzle Device | H&K Navy-type flash hider (included) |
| Finish | Black |
The PTR 91 51P PDWR comes with the pistol, a 20-round magazine, and an H&K Navy-style flash hider already fitted to the muzzle.
The butt cap is drilled and tapped to accept an AR15 tube-style stock adapter, which allows for configuration options. Always verify your build complies with federal and local regulations before making any modifications.
Yes, the barrel is threaded 5/8x24, a common thread pitch for .308 suppressors. The H&K Navy-style flash hider is already installed.
The delayed blowback roller-lock system cycles by design rather than relying on gas tubes or pistons. This PTR 91 platform uses a proven roller-lock mechanism that's been in service worldwide. It's known for smooth operation and consistent function across conditions.
SKU: 120921062 • Weight: 9.5oz
