Seekins Precision M3 Magnum Bolt Head – HAVAK M3 Rifles

Description

Seekins built the HAVAK M3 platform around the idea that one action should be able to do more than one job, and this bolt head is a big part of how that works. It's the magnum-sized bolt head made specifically for the Gen 3 M3 bolt, giving you a .540 bolt face so you can run magnum cartridges through your rifle instead of being locked into a single case head size. If you already own a standard M3 setup and want to stretch into something like 300 Win Mag, 300 PRC, or another magnum chambering, this is the piece that gets you there.

What makes the M3 system worth talking about is how the bolt head actually goes in. There's no punch, no wrench, no disassembly of the bolt body required. The three-lug design lets you pull the old bolt head and drop this one in by hand, then you're back to shooting. That kind of quick-change setup is a big reason guys running multiple barrels on one HAVAK M3 action like PH3, Element, or HIT models keep a spare bolt head or two in the range bag.

Why the M3 Magnum Bolt Head Matters for Barrel Swaps

Seekins designed the M3 action so barrels and bolt heads work as a matched system. Every time you switch to a barrel chambered in a magnum cartridge, the bolt face has to match up correctly for reliable feeding and a proper seal on the case head. Running the wrong bolt head size isn't something you want to guess your way through, so having the correct magnum unit on hand keeps your barrel swaps clean and your headspace where it should be.

Built for the HAVAK M3 Lineup

This bolt head is cut to work across the M3 family, not just one specific rifle model. Whether your HAVAK is set up as a PH3, an Element, or a HIT, the Gen 3 bolt architecture is shared, so this magnum bolt head drops right into any of them without needing a gunsmith to fit it.