5.56 :: 5.56X45MM, 55GR, Mark-1

Featuring ARMSCOR BATCH:

As Promised: Transitioning to Excellence As part of our unwavering commitment to quality, we've made a significant change: We've stopped using ZSR cases and have upgraded to premium ARMSCOR BATCH cases for our MARK-1 5.56 ammunition.

Mark-1 5.56x45mm 55GR Ammo a product of unmatched precision, consistency, and reliability. Crafted for professionals and shooting enthusiasts alike, each cartridge promises performance that stands a class apart. With a meticulous manufacturing process and rigorous quality checks, our 5.56x45mm ammunition redefines excellence in ballistics. Whether you're engaging in sharpshooting, tactical training, or recreational shooting, trust Mark-1 to deliver the perfect shot every time.

Ammo Specs

Caliber

5.56x45mm NATO

Casing Material

Brass

Muzzle Energy

Approximately 1 , 211.3 ft-lbs 1,211.3 ft-lbs for a 55gr bullet traveling at 3,109 fps.ft-lbs

Muzzle Velocity

Approximately 3,109 fps when fired from a 24-inch barrel. FPS

Powder Type

Ball Powder

Primer Type

BOXER

Bullet Type

FULL METAL JACKET (FMJ)

Grain Weight

55 GRAINS

Packaging Details

Package Dimensions

11.5X7.25X5.06inches

Package Weight

12.8 lbs

Packaging Type

Ammo Can

Round Count Per Package

500 rounds

Advanced Performance Metrics

Firearm Compatibility

Ensure your firearm is rated for 5.56mm before using it, AR-15/M16/M4 Platform Rifles, Ruger Mini-14, Steyr AUG, HK416, FN SCAR-L (MK 16), Sig Sauer SIG556, Tavor (IWI), CZ Bren 2, LWRC M6

Quality Assurance

Triple-checked using state-of-the-art technology to ensure each bullet meets our rigorous quality standards.

Precision/Accuracy

Expertly engineered for a balanced flight trajectory, our FMJ bullet maintains a true course to your target.

Flash

Minimized muzzle flash for discreet shooting, ideal for low-light conditions.

Feed

Optimized case and bullet design to ensure smooth feeding in semi-automatic firearms.

Consistency

Manufactured under tight tolerances to ensure uniformity across rounds, resulting in repeatable performance shot after shot.

Barrier Penetration

Solid FMJ construction designed to maintain integrity even when encountering barriers.

Recoil

Designed for a manageable and predictable recoil, enabling faster follow-up shots and improved shooting comfort.

5

5 out of 5

Reviews: 19

5 stars

100%

4 stars

0%

3 stars

0%

2 stars

0%

1 star

0%

Howie Waldman

Verified purchase

10/17/2023, 16:24

5

What do you like about the product?

I was sent some sample ammo and it shot great at my 100 yard targets. I came home and ordered 1000 rounds. It was delivered in two, 500 round ammo cans along with a hat and sticker in each can. Fast and Free shipping.

What would you like us to improve?

I don't know what you can improve on, just keep offering quality ammo at reasonable prices with FREE shipping.

Comment

To everyone out there; it's time to stock up, with all the wars going on around the world, ammo isn't going to get any cheaper.

Anonymous

10/15/2023, 21:17

5

What do you like about the product?

I like the ammo can and ease of knowing that it will go boom when needed

What would you like us to improve?

Maybe a little better package if would be nice. My sticker was a little crushed when shipped inside the ammo box but it’s not that big of a deal.

Comment

I like the ammo for the price point. I ended up giving it a chance when I saw it was 37 cpr. Went to the range today and shot probably close to 150 rounds thru my ar. Everything went boom and no issues when firing in semi auto and with my binary trigger.

Mark-1 Team

Thank you for your feedback! We're glad to hear that the ammo performed well for you. We apologize for the inconvenience with the packaging and the sticker – we're constantly working on improving our packaging to ensure everything arrives in perfect condition. Your feedback is valuable to us, and we'll certainly take it into account. We appreciate you giving MARK-1 a shot, and we're thrilled it met your expectations at the range. Stay safe and happy shooting!

Anonymous

10/15/2023, 14:08

5

Comment

Great ammo, better than Winchester white box and would buy again if price is right.

Mark-1 Team

Much obliged for the kind words! Glad to hear you reckon our ammo stands tall. We're always aimin' to give y'all the best value. Look forward to havin' you back at the MARK-1 ranch soon!

Jan Lee

10/14/2023, 11:55

5

What do you like about the product?

I was taking a chance on a unknown company but ammo looks good and shoots well. customer service is outstanding. I think I found a new suppler.

What would you like us to improve?

add order number to the order for easier tracking

Comment

can't wait for Mark-1 to offer different calibers but don't over extend, I would love to you Mark-1 to grow in to a major player.

Mark-1 Team

Firstly, we're incredibly grateful that you took a chance with MARK-1 Ammo. We're thrilled to hear your positive feedback about our products and our customer service! Your suggestion about adding an order number for easier tracking is duly noted, and we always welcome constructive feedback to enhance our customer experience. We're equally excited about expanding our caliber offerings and appreciate your cautionary note about overextending. Rest assured, we're passionate about our growth, but we'll always prioritize quality and customer satisfaction. Stay tuned for new offerings and developments, and thank you for rooting for us to become a major player in the industry. Your support means everything!

Ian Rodriguez

09/05/2023, 20:23

5

What do you like about the product?

5.56 and 300 BLK ran great suppressed and unsuppressed. Back to get more 5.56 and try the 9mm.

What would you like us to improve?

N/A

Comment

The hats awesome!

Bray Wilkins

09/05/2023, 20:22

5

What do you like about the product?

Well, you guys aren't another Fudd company and the ammo ran smooth as butter. So I am back for more.

What would you like us to improve?

no

Comment

Thanks for the sweet gifts.

Larry Golden

09/05/2023, 20:20

5

What do you like about the product?

Shot all 500 5.56 rounds and back for more. Ya'll killed it with this package. Thank you!

What would you like us to improve?

N

Comment

Back for more! Should be all I need to say.

Robert Boothby

09/05/2023, 20:17

5

What do you like about the product?

Excellent customer service. Was so pumped when it arrived. The gifts felt like Christmas in August. Took it out to the range and my groups were tight. My rifle has an appetite for more.

What would you like us to improve?

Nope

Comment

Getting my 3rd Can now, ya'll have a lifetime customer.

Frank Castle

09/05/2023, 20:14

5

What do you like about the product?

I ran the first 300 in full auto on a number of different host weapons. My rifles ate all the 5.56 I could give it without stopping. Will be buying more now.

What would you like us to improve?

I mean, maybe the next free gift is a velcro patch with your kick ass logo on it?

Comment

Can't wait to try the 300 BLK now.

5.56X45MM, 55GR, Mark-1 - 500CT

Featuring ARMSCOR BATCH: