Seekins Precision 0011710249-F Havak PH3 7mm Rem Mag 22" Black Fluted Threaded Barrel, Black Picatinny Rail Steel Receiver, Adj Cheek Riser Woodland Shadow Synthetic Stock

The Seekins Precision Havak PH3 in 7mm Rem Mag is a modern, feature-rich hunting and long-range rifle built for shooters who demand precision, modularity, and reliability in the field. This rifle combines Seekins' innovative quick-change barrel system with a smooth 3-lug bolt action and a toolless design that lets you swap calibers and break down the action without tools—ideal for hunters and range shooters who want flexibility without complexity.

The heart of the PH3 is its proprietary action: a 3-lug bolt with a fast 60-degree throw for rapid cycling, paired with a Trigger Tech adjustable trigger (2.5–5 lbs user-adjustable) to dial in your ideal break. The 22-inch 416R stainless steel barrel is fluted for weight savings and threaded 5/8x24 for suppressor or muzzle device mounting. Rails and mounting options are generous—an integrated 20 MOA Picatinny rail on the receiver plus a full-length M-Lok rail along the foregrip give you flexibility for optics, accessories, and modern mounting standards.

Comfort and ergonomics matter on a rifle you'll live with for years. The Woodland Shadow synthetic stock is a carbon-composite design with an adjustable cheek riser so you can dial in proper scope eye relief and head position for your shooting position and optic. The PH3 action works with Seekins' Mini Chassis and is compatible with the Seekins M3 Chassis and aftermarket stocks if you want to swap later.

Built on an open-source headspace and tenon specification, the PH3 gives you options and peace of mind. Whether you're hunting at distance, training at the range, or working up loads, the Havak PH3 delivers the tools and ergonomics serious shooters expect.

Key Features

• 3-lug toolless quick-change bolt system for fast caliber swaps and field-stripping
• 60-degree bolt throw for smooth, rapid cycling
• Integrated 20 MOA Picatinny rail for long-range optics and elevated zero
• Full-length M-Lok rail for modern accessory mounting
• Trigger Tech adjustable trigger (2.5–5 lbs) user-tunable for your preference
• Fluted 416R stainless steel barrel reduces weight without sacrificing accuracy
• 5/8x24 threaded muzzle for suppressors and muzzle devices
• Adjustable cheek riser for custom stock-to-scope fit and shooting comfort
• Carbon-composite Woodland Shadow stock in durable synthetic material
• Compatible with Seekins M3 Chassis and Mini Chassis for future customization

Specifications

Frequently Asked Questions

Can I swap calibers on the Seekins PH3 without tools?

Yes. The Havak PH3 features a toolless quick-change barrel system, meaning you can swap barrels and break down the 3-lug bolt for cleaning or caliber changes without special tools. The open-source headspace and tenon specification also gives you flexibility in sourcing aftermarket barrels.

What stocks and chassis systems are compatible with the PH3 action?

The PH3 action works with Seekins Mini Chassis as well as the Seekins M3 Chassis and compatible stocks. If you want to reconfigure your rifle for a different role later, this modularity gives you options.

Is the muzzle threaded, and what size suppressor will fit?

The barrel is threaded 5/8x24, the standard large-magnum suppressor thread pitch. This accommodates most quality suppressors and muzzle devices designed for magnum calibers.

How does the adjustable cheek riser work?

The stock includes an adjustable cheek piece (comb) that lets you raise or lower your cheekweld to achieve proper scope eye relief and sight picture. This is especially useful when switching between different optics or finding the most comfortable shooting position for your body geometry.