Seekins Precision 0011710207-F Havak PH3 308 Win 20" Black Fluted Threaded Barrel, Black Picatinny Rail Steel Receiver, Adj Cheek Riser Woodland Shadow Synthetic Stock

The Seekins Precision Havak PH3 in .308 Winchester is a precision rifle built for shooters who demand a smooth action, reliable performance, and genuine long-range capability. This 20-inch barreled rifle combines Seekins' reputation for quality machining with a modern, modular design that works hard whether you're dialing in at the bench, hunting at distance, or running drills on steel. The Woodland Shadow synthetic stock gives it a practical finish that blends function and form—no unnecessary frills, just a rifle engineered to deliver.

At the heart of the PH3 is Seekins' 3-lug bolt design paired with a 60-degree throw, offering one of the fastest and smoothest actions on the market. The quick-change barrel system uses open-source headspace and tenon specs, so swapping calibers is toolless and straightforward—pull the bolt, swap the barrel, and you're ready to go. The integrated 20 MOA Picatinny rail is built into the receiver, eliminating the need for a separate base and giving you a solid foundation for optics and accessories. Full-length M-Lok rail runs the length of the forearm for mounting lights, grips, bipods, or whatever your mission demands.

The 416R stainless steel barrel is fluted to shed weight without compromising rigidity, and it threads at 5/8x24 for suppressors or muzzle devices. The adjustable cheek riser lets you dial in your sight picture to the scope, a feature that matters more the longer your shots get. Trigger Tech delivers a user-adjustable pull between 2.5 and 5 pounds—crisp and consistent. The PH3 action is compatible with Seekins' M3 chassis and the Mini Chassis, so if you decide to go modular down the road, your investment is protected.

Key Features

• 3-lug bolt with 60-degree throw for smooth, fast cycling
• Toolless bolt disassembly and quick-change barrel system
• Integrated 20 MOA Picatinny rail on receiver
• Full-length M-Lok rail for mounting accessories
• 416R stainless steel, fluted and threaded barrel
• Adjustable cheek riser for optic and scope alignment
• Trigger Tech user-adjustable trigger (2.5–5 lbs)
• Woodland Shadow synthetic stock
• Compatible with Seekins M3 Chassis and Mini Chassis

Specifications

Frequently Asked Questions

What does the quick-change barrel system mean, and why does it matter?

Seekins designed the PH3 to swap calibers without tools. The barrel uses an open-source headspace and tenon spec, so you can change from .308 Winchester to another caliber supported by the action (and the bolt) without a gunsmith. It's modular by design and built for shooters who want flexibility.

Is the PH3 action compatible with other Seekins chassis or stocks?

Yes. The PH3 action is compatible with Seekins' M3 Chassis and the Seekins Mini Chassis, so you can adapt the rifle to different roles or stocks down the road.

What's included with this rifle, and what do I need to add?

The rifle ships as a complete, ready-to-shoot package: action, barrel, stock, adjustable cheek riser, and rails. You'll need to add an optic (mounted to the integrated 20 MOA Picatinny rail), ammunition, and any muzzle device if desired.

Can I adjust the trigger pull on the Trigger Tech trigger?

Yes. The Trigger Tech trigger in the PH3 is user-adjustable, allowing you to set the pull weight anywhere between 2.5 and 5 pounds to suit your preference.