45 GAP Ammo

The .45 Glock Automatic Pistol (GAP) cartridge was designed to be shorter in length than a .45 ACP, while maintaining a similar level of energy. The .45 GAP is shorter than a standard 9mm cartridge, but will generate up to 600 foot pounds of energy at the muzzle. Learn More
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  1. Magtech 45 GAP Ammo - 1000 Rounds of 230 Grain FMJ Ammunition

    1 In stock now

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    Image For 1000 Rounds Of 230 Grain FMJ Boxer Brass 45 GAP Magtech Ammunition
    $480.00 Price
    • $455.00 each if you buy 2 -  save 5%

    Qty:

    • 1000 Rounds
    • Made by Magtech

    • New Condition
    • 1000 Rounds
    • Made by Magtech
    • Foreign Discount Range
    • 45.5¢ to 48¢ Cost Per Round
    • Magtech SKU 45GA
    • UPC 754908190607
  2. Magtech 45 GAP Ammo - 50 Rounds of 230 Grain FMJ Ammunition

    45 In stock now

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    Image For 50 Rounds Of 230 Grain FMJ Boxer Brass 45 GAP Magtech Ammunition
    $25.00 Price
    • $24.75 each if you buy 5 -  save 1%
    • $24.50 each if you buy 10 -  save 2%

    Qty:

    • 50 Rounds
    • Made by Magtech

    • New Condition
    • 50 Rounds
    • Made by Magtech
    • Foreign Discount Range
    • 49¢ to 50¢ Cost Per Round
    • Magtech SKU 45GA
    • UPC 754908190614
  3. Remington 45 GAP Ammo - 500 Rounds of 230 Grain MC Ammunition

    16 In stock now

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    Image For 500 Rounds Of 230 Grain MC Boxer Brass 45 GAP Remington Ammunition
    $275.00 Price

    Qty:

    • 500 Rounds
    • Made by Remington

    • New Condition
    • 500 Rounds
    • Made by Remington
    • American-made Discount Range
    • 55¢ Cost Per Round
    • Remington SKU L45GAP4
    • UPC 047700383415
  4. Remington 45 GAP Ammo - 50 Rounds of 230 Grain MC Ammunition

    48 In stock now

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    Image For 50 Rounds Of 230 Grain MC Boxer Brass 45 GAP Remington Ammunition
    $30.00 Price

    Qty:

    • 50 Rounds
    • Made by Remington

    • New Condition
    • 50 Rounds
    • Made by Remington
    • American-made Discount Range
    • 60¢ Cost Per Round
    • Remington SKU L45GAP4
    • UPC 047700383408
  5. Speer 45 GAP Ammo - 50 Rounds of 200 Grain TMJ Ammunition

    19 In stock now
    Image For 50 Rounds Of 200 Grain TMJ Boxer Brass 45 GAP Speer Ammunition
    $32.50 Price

    Qty:

    • 50 Rounds
    • Made by Speer

    • New Condition
    • 50 Rounds
    • Made by Speer
    • American-made Discount Range
    • 65¢ Cost Per Round
    • Speer SKU 53980
    • UPC 076683539809
  6. Federal 45 GAP Ammo - 50 Rounds of 185 Grain TMJ Ammunition

    51 In stock now

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    Image For 50 Rounds Of 185 Grain FMJ Boxer Brass 45 GAP Federal Ammunition
    $33.49 Price

    Qty:

    • 50 Rounds
    • Made by Federal

    • New Condition
    • 50 Rounds
    • Made by Federal
    • American-made Discount Range
    • 67¢ Cost Per Round
    • Federal SKU AE45GA
    • UPC 029465096403
  7. Speer Gold Dot 45 GAP Ammo - 50 Rounds of 185 Grain JHP Ammunition

    50 In stock now

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    Image For 50 Rounds Of 185 Grain JHP Boxer Nickel-Plated Brass 45 GAP Speer Ammunition
    $35.00 Price

    Qty:

    • 50 Rounds
    • Made by Speer

    • New Condition
    • 50 Rounds
    • Made by Speer
    • American-made Self-Defense
    • 70¢ Cost Per Round
    • Speer SKU 53977
    • UPC 076683539779
  8. Magtech 45 GAP Ammo - 20 Rounds of 185 Grain JHP Ammunition

    50 In stock now

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    Image For 20 Rounds Of 185 Grain JHP Boxer Brass 45 GAP Magtech Ammunition
    $19.00 Price

    Qty:

    • 20 Rounds
    • Made by Magtech

    • New Condition
    • 20 Rounds
    • Made by Magtech
    • Foreign-made Self-Defense
    • 95¢ Cost Per Round
    • Magtech SKU GG45GA
    • UPC 754908193912
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  • Click To Purchase This 45 GAP Speer Ammunition
    based on the 1 review below
  • Harry said:

    " I'm in no way an expert but I've fired 100 rounds of this ammo so far and am pleased with my purchase 4 inch grouping at 10 yards with my glock 37 which isn't bad for a 45. The ammo does smoke a little but there were no misfires, jams or duds. "

In 2003, the .45 Glock Automatic Pistol (GAP) cartridge was introduced as the first cartridge to have the Glock name. This cartridge was developed by Glock because they wanted a .45 caliber bullet in a case no longer than a 9mm or .40 S&W, as well as a cartridge that would not require a grip larger than what they had in their Model 17 or 22 pistols.

The .45 GAP case is much shorter than a .45 ACP, and even shorter than the case of a 9x19mm! Exclusively small primers are used, but essentially all other measurements of the case are the same, as well as the bullets – which weigh between 165 and 230 grains. The .45 GAP cartridge generates about 400 to 500 foot pounds of energy at the muzzle, though some loads reach up to 600 foot pounds.

Glock's goal in development of the .45 GAP was to provide as much energy as the .45 ACP – or more – while reducing the grip distance from front to back and side to side. In this way, .45 caliber handguns became accessible to more shooters of small stature.

Response to the .45 GAP upon its introduction was generally positive, and .45 GAP pistols were produced by a few firearm manufacturers other than Glock. However, Glock is currently the only manufacturer of .45 GAP handguns. The law enforcement community has given the most favorable reception of the .45 GAP, with five state law enforcement agencies having chosen the Glock 37 chambered in .45 GAP, because it has the power of the .45 ACP in a more compact frame. The New York State Police replaced their Glocks chambered in 9mm for Glocks chambered in .45 GAP, and state agencies in Florida, Georgia, South Carolina, and Pennsylvania have set aside their .40 S&W pistols for the .45 GAP Glock 37.