BAT Vesper Action




If you’re ordering a stock for our new Medium action with DBM and mag, order Lone Peak Medium inlet and Hawkins Medium M5 inlet.

Action Features:

  • Medium Action: 25 ounces, Long Action: 26 ounces, Right Handed only
  • Remington 700 Footprint with Integrated 20 MOA Picatinny rail and integrated .250″ recoil lug
  • Both Medium and Long Action Available in Standard .485″, Magnum .550″, and Lapua .600″ bolt faces.
  • Long Action Body is 8.860″, 1.35″ Diameter, and ejection port is 3.625″ Long
  • Entire action body and bolt made from 17-4 stainless (the strongest in the industry) and heat treated with BlackNitride+
  • Most action manufacturers upcharge for proper coating, .600 bolt face, and other options that are included standard with the Vesper
  • Medium Action Standard 3.4″ Load Port perfect for our new DBM and Mag with 3.400″ Inside mag length.
  • Long Action Standard 4″ Load Port perfect for our new DBM and Mag with 3.950″ Inside mag length, or a Wyatt’s CFE-9
  • 720″ diameter 90 degree spiral fluted modular bolt, can swap bolt faces without replacing entire bolt
  • Wire EDM cut lug-ways with 0035″ bolt to body clearance that is optimal for field use
  • Tool-less field serviceable and Melonited firing pin assembly
  • 1.125″ x 16 Tenon threads in medium and long action for superior strength, the largest available in the industry
  • M16 Extractor for Standard and Magnum bolt face, Lapua bolt face has Sliding Plate Extractor, DLC coated
  • Replaceable bolt knob with 5/16-24 threads, titanium bolt knobs available HERE
  • Available exclusively from Unknown Munitions, an Authorized BAT Machine dealer
  • BAT Action prints found HERE
  • Made right here in Post Falls Idaho.

*** Must ship to an FFL of your choice, please have them email us a copy of their FFL referencing your name.


Additional information

Weight 30 oz
Dimensions 10 × 4 × 4 in

Short, Medium, Long


Right Hand, Left Hand


Standard, Magnum, Lapua


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