Home/MARK-1 CALIBERS/5.56X45MM, 55GR M193, Mark-1 - 540CT

5.56X45MM, 55GR M193, Mark-1 - 540CT

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CODE: 5.56-BRASS-55GR-M193-MK1-540

$290⁰⁰

In stock

You will receive 540 ROUNDS 5.56 55GR M193

This is brand-new ammo—not reloaded, not remanufactured, and not pulled down

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You will receive 540 ROUNDS 5.56 55GR M193

This is brand-new ammo—not reloaded, not remanufactured, and not pulled down

Caliber5.56x45mm NATO Casing MaterialBrass Powder TypeBall Powder Primer TypeBOXER Bullet TypeFULL METAL JACKET (FMJ) Grain Weight55 GRAINS Package Weight28 lbs Packaging TypeAmmo Box Round Count Per Package540 rounds

Description
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Reviews 2

5.56 x 45 mm FMJ

The cartridge consists of case, primer, gunpowder and bullet. It is applicable in extreme polar or desert conditions, contributing to the versatility of its use.

5.56 x 45 mm – FMJ bullet

The FMJ (Full Metal Jacket) bullet weighs 3.56 g (55 gr) and features a lead core for reliable penetration and performance. The jacket is made of CuZn10, providing durability and ensuring consistent performance.

5.56 x 45 mm – case

The caliber 5.56 x 45 mm CuZn30 case is intended for inserting the powder charge, primer and bullet.

5 out of 5

Reviews: 2

5 stars

100%

4 stars

3 stars

2 stars

1 star

John Warren

04/03/2025, 10:32

Comment

I fired the first ten rounds at the upper target in the picture. This was shot from a standard 16 inch AR-15 rifle with a zero magnification red dot. The rounds cycled perfectly through the rifle, and had zero malfunctions or stoppages. They performed well and better than expected for 55 grain ammunition. There was very little recoil and zero muzzle rise. I inspected the primers of the spent cases for signs of bubbling. These showed zero signs of bubbling, or deformations.

I preceded to fire the last ten rounds through a Mossberg MVP Patrol bolt action rifle with open sights. Even with the sloppy bolt of the action, the rounds performed great and ejected flawlessly. The lower group in the picture is the ones fired from this. It was a larger group, but that was expected from open sights and the sloppy action of the Mossberg. I inspected the primers on these, and found no bubbling or deformations.

K Carter

03/15/2025, 10:57

What do you like about the product?

Runs good in my 16” PSA and 14.5” BCM AR-15, no feeding or cycling issues.
Good accuracy—holds about 1.5-2 MOA at 100 yards, consistent for training and drills
Clean enough, doesn’t leave excessive residue like some bulk ammo.
Brass is good (ATS headstamp)

What would you like us to improve?

Would love to see MAGZ similar to what you have for 7.62x39, Maybe offer a bulk pack
A 62gr or steel core option would be great for variety.

Comment

Good value, reliable, accurate enough and clean. Perfect for training, drills, and stockpiling. Definitely recommend if you’re looking for bulk 5.56 that runs smoothly in any AR setup