Description
Seekins Precision built this magazine from the ground up to solve a real problem: standard short-action magazines limit how far you can seat heavier 6.5 PRC projectiles. This hand-laid carbon fiber design extends internal capacity to support cartridge overall lengths up to 3.1 inches, giving you the flexibility to load longer for better velocity and powder capacity without cramming bullets into the neck. That extra seating depth makes a meaningful difference when you're dialing in handloads with 147-grain match bullets or 140-grain hunting rounds.
Construction and Weight
The carbon fiber construction isn't window dressing here. Seekins lays the carbon fiber by hand and finishes it in black, which keeps the total weight down to just 1.4 ounces. That matters when you're building a mountain rifle or upgrading a hunting setup you'll carry all day. The proprietary internal geometry is what sets this magazine apart though, as the extended walls and feed geometry create the extra room needed for longer cartridges without sacrificing reliability or durability.
Seekins Precision Compatibility
These magazines work exclusively with Seekins proprietary HAVAK detachable box magazines on their PH1, PH2, and Element rifles chambered in 6.5 PRC. They won't fit standard AICS-pattern systems, so make sure your rifle has the Seekins DBM system before ordering. This magazine ships individually, so you can add backups to your setup or keep spares in different kits.
What You're Getting
One 3-round detachable magazine built to last. Field-tested construction paired with that lightweight carbon fiber design means this mag handles demanding hunting and range conditions without hesitation.
Key Specifications
- Caliber: 6.5 PRC
- Capacity: 3 rounds
- Material: Hand-laid carbon fiber
- Maximum COAL: 3.1 inches
- Weight: 1.4 ounces
- Manufacturer: Seekins Precision
- Manufacturer Part Number: 0010330021-F
- UPC: 811452021730
- Finish: Black
- Rifle Compatibility: Seekins HAVAK PH1, PH2, Element DBM only
- Magazine Type: Proprietary detachable box magazine
- AICS Compatible: No
What’s Included
- One 3-round carbon fiber detachable magazine
Frequently Asked Questions
Will this magazine work in my Seekins Havak rifle?
This magazine is designed exclusively for Seekins HAVAK rifles with the proprietary detachable box magazine system, including the PH1, PH2, and Element models chambered in 6.5 PRC. It will not work with AICS-pattern systems or other actions. Verify your rifle has the Seekins DBM before purchasing.
How much extra seating depth does the 3.1-inch COAL really give me?
The standard 6.5 PRC SAAMI length is 2.955 inches. This magazine extends that to 3.1 inches, giving you roughly 0.15 inches more room for seating bullets. That sounds small, but when you're working with long, heavy 147-grain match bullets or optimizing handloads, it makes the difference between fitting comfortably and not fitting at all. It also opens up powder capacity possibilities.
Can I run standard AICS magazines in my PH1 or PH2 if I add a spacer?
Seekins rifles can use standard AICS magazines with an included spacer for other calibers, but the 6.5 PRC magazine is engineered specifically to take advantage of the proprietary action's geometry. For 6.5 PRC with handloads, the Seekins carbon fiber magazine gives you the extended internal length you can't get from AICS magazines without extra parts and compromises.
Why choose carbon fiber over traditional metal magazines?
Carbon fiber keeps weight to just 1.4 ounces compared to standard aluminum or steel options, which matters on lightweight rifles. Seekins hand-lays the carbon fiber for durability and reliability while maintaining the extended internal geometry needed for longer 6.5 PRC loads. It's a trade-off that makes sense for mountain hunting rigs where every ounce counts.





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