Have you ever run out of ammo mid-stage? Dropped mag or feeding issues, or simply need the extra round or two available when it counts?

Store an additional 2 rounds on the side of your rifle with the MDT M-LOK Multi-Caliber Spare Round Holder.

SPECIFICATIONS

  • Wide range of round compatibility including .223, 300 AAC, .224 Valkyrie, 7.62x39, 6.5 Grendel, .308, 6.5 Creedmoor, 450 Bushmaster, 7mm, 300 WM, 300 PRC, 6.5 PRC and more
  • Includes a small and large caliber polymer body with adjustable spacer system for maximum compatibility
  • Spacer system uses Mil Spec washers and O-Rings to offer the perfect fit
  • Can be mounted using M-LOK or the accessory holes on the side of ACC chassis
  • Reversible design allows for mounting on left or right side of chassis
  • Staggered design providing greater clearance around ejection port
  • Glass filled Polypropylene polymer body

INSTALLATION

  • 5 stars: 75 (69%)
  • 4 stars: 10 (9%)
  • 3 stars: 12 (11%)
  • 2 stars: 5 (5%)
  • 1 star: 7 (6%)
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Ryan V.

It’s ok but for a lefty it’s not really ambidextrous because it pits the round in a bad spot for the brass to eject on an ACC Elite. It could be a little nicer it’s a little plasticy overall a big MDT fan but not my favorite product

Hi Ryan, thanks for sharing your feedback. We appreciate your support of MDT and will consider your comments for future improvements. If you have any other suggestions or questions, feel free to reach out!

S
STEVEN H.

Fit like a champ! Highly recommend MDT products

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STEVEN H.

Love it! I did have to order some longer screws for it so that I can holster some .300 PRC rounds in. No big deal. Very clever design. Takes a bit of trial and error to figure out how many spacer washers to install and where. But overall....another outstanding product MDT!

A
ALEX
Plastic cracked on install. Questionable quality.

Followed the instructions to the letter per the install instructions. (2 washers + o-ring for 6. 5 Creedmoor) and when affixing and adjusting tension to where the rounds were retained, the plastic cracked along the edge where the screw travels through the outer half. Very disappointed.

Thank you for taking the time to leave your review. Sorry to see that this happened! A customer support representative will be in touch and take care of you.

D
Dwight M.
Fit and Finnish is great,

Fit and Finnish is great, looks great and easy to install.

R
RANDY D.
Excellent add on to my

Excellent add on to my MDT chassis, well made and good quality, easy to install, can be positioned where you need it yet out of the way that it becomes an issue.

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Robert O.
You Won't Regret Buying It

Honestly this little gem is a must. Installation is a breeze and fit and finish is amazing. And you always need more rounds readily available. Added it to the cart and check out!

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Steven m.
Nice but not perfect

It holds the rounds 6mm Creedmoor, tight but I think a few improvements could still happen to make it perfect.

Larger (wider) rubber "O' rings instead of stacking a small one with nylon spacers. Have two very thin nylon spacers and a wider rubber push to adjust the tension.

Thank you, we appreciate you taking the time to write your review and will keep this under consideration. If we can help with any questions, please don't hesitate to reach out.

R
Rich P.
A few extra rounds

Durable, lightweight and convenient. It great to be able to have a few extra round with in easy reach. Solid construction, adaptable for many calibres and easy to install!

m
michael j.
Spare round for 300wm....almost....

I like it but when its installed either its so tight I cant get rounds in or out effectively or its too loose and slips forward and back in M Lok panel. I will note I shoot a 300wm so it is a large round,but I feel like the O rings are the flaw. When mounted tight enough to not slip in rail there is no Flex to make round add/removal practical. Still love MDT though,just a miss on this one.

We appreciate you taking the time to leave your review and feedback. When you installed the washers, how many did you use, and how many of the O rings?

A
Anonymous

Works fabulous 👌

H
Henry B.

Is a little tough to get set right but once set, it dpesasitshould. It

R
Richard W.J.

Great part

C
Chris R.

Very nice addition to my gun. Works great!

J
J.l.

Not the most robust thing, but functional when adjusted correctly.

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Silvestre A.

Saw your sale ad when I got home from work. Gee, I wish I was home to be able to use your sale.
Great time of day to start and end a sale. Genius!

J
Johnny.

I purchased 4 of these. With shipping and taxes over $200, big mistake. When one is at the top and the second one is at the bottom, the tension is okay. However, as soon as you remove one of them the other 1 simply falls out. Second, it's made out of cheap plastic junk in all honesty. I think it's made in China and just relabeled. bottom line Total complete junk to say I was disappointed is an understatement.\n Has to be made in China? I refuse to believe that United States of America makes this kind of junk. Especially for firearms in the firearm industry. One failure is 1 too many This was designed to do one thing, and it can't even do that if I could give it 0 stars, I would in the trash they go.\n I'm leaving this for the people that cannot afford to throw away $200. Total complete waste.

A
Anonymous

Not impressed. Did not hold rounds snuggly, unless the were seated all the way in, then it warped to plastic holder. Only worked at all if two rounds were in. Once you removed one, the other just fell out. Bottom line, a complete waste of $50.

J
J. R.

Bolted nicely to the side of the chassis. Holds 308 shells firmly and securely.

J
JAN C.
Not bad but not great

I wasnt too impressed and ended up not actually putting it on the rifle. Maybe Its due to the caliber (6 Dasher) but for me, i couldnt find a good balance where the rounds would hold but would still be easy to take out in a hurry. Part of the tension is created from the round itself, so when you take one out, the tension on the second one is lower.

Thank you for taking the time to leave your review and share your experience. If you could reply with more details about how you have everything set up, we would be happy to see what we can do to assist you.

L
Les M.
Excellent product fits well

Excellent product fits well

G
GENE H.
Well designed product :star:️:star:️:star:️:star:️:star:️

Well designed product :star:️:star:️:star:️:star:️:star:️

C
Christopher B.
A bit fussy to get

A bit fussy to get the tension equal on both cartridge locations

Thank you for taking the time to post your review.
If you have any issues, please reach out to our support team at support@mdttac.com. Thanks!

J
JOHN I.
Very smart design with the

Very smart design with the tapered stacking of the spare rounds that allow it to attach with the strength of M-Lok and still not interfere with the ejection port. . . Durable. . . Great Looking (which is the most important, right? lol). . . . . And super easy to snatch the rounds!

-Johnny Kenyon

S
STEPHANE P.
This is an absolutely wonderful

This is an absolutely wonderful device. Having those extras at the tip of your fingers is very convenient. It's also great that the tension is adjustable. I am going to be adding these to several of my other firearms as well.

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Roy T.
Quality product

Quality product

S
Shawn C.
Unsure at this point ,

Unsure at this point , definitely not what I was expecting. We will see how it works.

Thank you for taking the time to leave us your feedback, if you have any questions or need any help getting your Spare Round Holder set up please don't hesitate to reach out and ask, our Support Team is always happy to help.