Magtech First Defense Full Metal Jacket (FMJ) 123 Grain 300 AAC Blackout Ammo - 500 Rounds

Bullet Weight
123 Grain
Casing Type

In Stock: 19

$0.59 per round


Magtech’s 123 grain full metal jacket 300 BLK ammo brings a muzzle velocity of 2230 feet per second with 1358 foot pounds of energy. This is a 300 AAC round that is well suited for target practice, civil defense as well as range and firearms training.

At the start of the 21st century the U.S. began, again, to look at alternative calibers, specifically for the M4 service carbine. The goal was to have a cartridge that matched the often antagonist 7.62x39 Russian cartridge in terminal ballistics, at least at close and medium ranges. The .300 Black out proved to be one of the most popular alternatives, if for no other reason than it feeds reliably off standard AR magazines. Though not selected, officially, for any military branches, many private users have adopted the cartridge, especially for use out of short barreled rifles and AR pistols.

Magtech started in 1990 as a flagship training ammo producer for the international CBC Group. Since then, it has expanded to encompass other lines of ammunition including defense, hunting and indoor safe, “green” ammunition. Manufactured with boxer primed, reloadable cases, the company is also a rich source of once fired brass to custom handloaders, a not uncommon pastime for shooters of this new and growing caliber.

Additional information

  • Manufacturer Magtech
  • Condition New
  • Bullet Weight 123 Grain
  • Bullet Type Full Metal Jacket (FMJ)
  • Use Type Range Training
  • Casing Type Brass
  • Quantity 500
  • Ammo Caliber 300 AAC Blackout
  • Manufacturer SKU 300BLKB
  • Primer Type Boxer
  • Muzzle Velocity 2230
  • Muzzle Energy 1358
  • Magnetic No
  • UPC Barcode R05252016432
  • Cost Per Round $0.59 per round

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