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Availability: In Stock
Current Stock: Out of stock
The Seekins Precision Havak PH3 in 300 Win Mag is a purpose-built rifle for hunters and long-range shooters who demand a smooth, versatile action without compromise. This 26-inch fluted threaded barrel rifle combines Seekins' innovative quick-change barrel system with a modern 3-lug bolt design and 60-degree throw that delivers the fastest, smoothest cycling action in the lineup. Built on a steel receiver with integrated 20 MOA Picatinny rail and full-length M-Lok for accessory mounting, the PH3 arrives ready to configure for your setup.
The Mountain Shadow synthetic stock features an adjustable cheek riser, letting you dial in consistent scope picture and natural head position during extended shooting sessions. The carbon composite construction keeps weight down while the open-source headspace and tenon specs mean you can swap barrels with confidence—and Seekins includes toolless bolt disassembly for quick cleaning and maintenance. The Trigger Tech trigger is user-adjustable from 2.5 to 5 pounds, giving you the pull weight that matches your shooting style.
300 Win Mag shooters benefit from Seekins' extended cartridge overall length capability (up to 3.9 inches), so you're not forced to seat bullets short. The 5/8x24 threaded muzzle accepts standard suppressors and muzzle devices. Whether you're glassing from a mountain ridge or shooting steel at distance, the PH3 is engineered to keep up with your ambition.
| Caliber | 300 Win Mag |
| Barrel Length | 26 inches |
| Barrel Material | 416R stainless steel, fluted |
| Muzzle Thread | 5/8x24 |
| Receiver | Steel with integrated 20 MOA Picatinny rail |
| Rail System | Integrated full-length M-Lok rail |
| Bolt | 3-lug toolless removable (magnum) |
| Bolt Throw | 60 degrees |
| Trigger | Trigger Tech, user-adjustable 2.5–5 lbs |
| Stock | Seekins PH3 carbon composite, Mountain Shadow finish |
| Cheek Riser | Adjustable |
Yes. The Havak PH3 uses Seekins' quick-change barrel system with open-source headspace and tenon specs. The 3-lug bolt is toolless removable, so you can disassemble it for cleaning or swap it to a different lug count if you change calibers. This rifle ships configured for 300 Win Mag with a magnum-lug bolt.
The rifle comes complete and ready to shoot once you mount a scope and add ammunition. You'll need a scope mounted on the integrated 20 MOA Picatinny rail. The full-length M-Lok rail is built in, so you can add bipods, lights, or other accessories as needed.
The PH3 action is compatible with Seekins M3 Chassis and Stocks, as well as the Seekins Mini Chassis. However, this rifle ships with the integrated Seekins PH3 carbon composite Mountain Shadow stock with adjustable cheek riser.
The barrel is threaded 5/8x24, which is the standard for modern suppressors, muzzle brakes, and flash hiders in magnum rifle calibers.
SKU: 198466746 • Weight: 16.5oz
Availability: In Stock
Current Stock: Out of stock
The Seekins Precision Havak PH3 in 300 Win Mag is a purpose-built rifle for hunters and long-range shooters who demand a smooth, versatile action without compromise. This 26-inch fluted threaded barrel rifle combines Seekins' innovative quick-change barrel system with a modern 3-lug bolt design and 60-degree throw that delivers the fastest, smoothest cycling action in the lineup. Built on a steel receiver with integrated 20 MOA Picatinny rail and full-length M-Lok for accessory mounting, the PH3 arrives ready to configure for your setup.
The Mountain Shadow synthetic stock features an adjustable cheek riser, letting you dial in consistent scope picture and natural head position during extended shooting sessions. The carbon composite construction keeps weight down while the open-source headspace and tenon specs mean you can swap barrels with confidence—and Seekins includes toolless bolt disassembly for quick cleaning and maintenance. The Trigger Tech trigger is user-adjustable from 2.5 to 5 pounds, giving you the pull weight that matches your shooting style.
300 Win Mag shooters benefit from Seekins' extended cartridge overall length capability (up to 3.9 inches), so you're not forced to seat bullets short. The 5/8x24 threaded muzzle accepts standard suppressors and muzzle devices. Whether you're glassing from a mountain ridge or shooting steel at distance, the PH3 is engineered to keep up with your ambition.
| Caliber | 300 Win Mag |
| Barrel Length | 26 inches |
| Barrel Material | 416R stainless steel, fluted |
| Muzzle Thread | 5/8x24 |
| Receiver | Steel with integrated 20 MOA Picatinny rail |
| Rail System | Integrated full-length M-Lok rail |
| Bolt | 3-lug toolless removable (magnum) |
| Bolt Throw | 60 degrees |
| Trigger | Trigger Tech, user-adjustable 2.5–5 lbs |
| Stock | Seekins PH3 carbon composite, Mountain Shadow finish |
| Cheek Riser | Adjustable |
Yes. The Havak PH3 uses Seekins' quick-change barrel system with open-source headspace and tenon specs. The 3-lug bolt is toolless removable, so you can disassemble it for cleaning or swap it to a different lug count if you change calibers. This rifle ships configured for 300 Win Mag with a magnum-lug bolt.
The rifle comes complete and ready to shoot once you mount a scope and add ammunition. You'll need a scope mounted on the integrated 20 MOA Picatinny rail. The full-length M-Lok rail is built in, so you can add bipods, lights, or other accessories as needed.
The PH3 action is compatible with Seekins M3 Chassis and Stocks, as well as the Seekins Mini Chassis. However, this rifle ships with the integrated Seekins PH3 carbon composite Mountain Shadow stock with adjustable cheek riser.
The barrel is threaded 5/8x24, which is the standard for modern suppressors, muzzle brakes, and flash hiders in magnum rifle calibers.
SKU: 198466746 • Weight: 16.5oz