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Due to the current Political and Health crisis, All our distribution network (Our Vendors) are experiencing long delays in shipping our orders. This means that you will see a lot of out of stock items. We do not know when most of these items will be back in stock UNLESS our orders have already shipped. Due to the lack of supply, we no longer offer any wholesale pricing. We will resume this program once our supply chain gets back to normal.

Our Current Shipping Delays is Between 1-9 Business Days (Sat & Sun Are Not Business Days). We're doing as best to get everyones orders shipped out. If you're order hasn't pass the 9 Business Days mark, Please do not email us on the status, where its at or when it will ship. These emails will be ignored. Please also keep in mind that USPS, UPS, FEDEX are separate entity. We have no control over how they do their business. Everyone is experiencing delays so please be patient.


What do you have in stock?

All of the items that gets restocked and new arrivals will fall under "LATEST RESTOCK" page. We also have a banner located in front of our website. Most of these items are ready to ship. Currently have same day - 2 days shipping time. This will depend on how many orders we have to go through per day. 

How about items not located "Latest Restock" Banner?

We are estimating shipping delays up to 3-4 weeks (estimated) for all other items NOT located the "LATEST RESTOCK" category.  If you are not willing to wait, please at this time we ask you DO NOT order. Again, this is just an estimate. For some orders, it may take only days but other orders might take the full 3-4weeks, or even longer. The entire gun industry is on a dry spell right now with an inventory level due to this pandemic/panic buying. We are constantly searching for new vendors and even retailers to purchase some of these back-ordered items from. Please do not send us an inquiry on when your order will be ready. We will contact you once it's available or at the very least, we will let you know if there's a new ETA for your order.

Do you offer local pick up or Will Calls?

We're currently NOT offering any local pick ups or will calls.

About Builders Kit:

These are called BUILDERS Kits and not called “Assemble Kit” for a reason. You will need to file/sand/polish p80 frames/parts in order to make it work. Esp. for the subcompact, almost 100% of the time you will have to modify the locking block. If you are not capable of doing this then DO not buy these kits. It is your SOLE responsibility to figure out how to install any of the parts you've purchased from us. We can't tell you how to fix a non-resetting trigger, or how to install a slide parts kit. Please do your own due diligence and Search online prior to purchasing any of the builders kits. We will not assemble any slide parts kits at this time. All our build kits will have Channel Liners already installed. If we have time, then we will also install sights (if they're available). You can figure out the rest. Simple google search usually does the job. Again, if you’re not capable of doing this then DO not purchase any of these build kits. We STRONGLY RECOMMEND to go on and searching  "marinegunbuilder". Watch all of his build kit related videos. It will help you understand what to look for when you're building your kit. 

What does it mean when items are "grayed" on your product page?

It means that those item is out of stock. If you see the following items in gray under the builders kit:

  • Slide Option
  • Frame Option
  • Barrel Option

This means that the Entire Builders Kit is OUT OF STOCK. 

Our Builders Kit are a la cart. You get to pick if you want them with sights, upgraded ejector and lpk. If any of those items are "grayed out" then this means they're OUT OF STOCK. This means the kit will not come with whatever is out of stock. 

Whatever you see available on colors/slide style is what we currently have. Do not ask if we have this color if you see it out of stock. At this point we do not know when another restock but we will always make an announcement so make sure to follow/like us on Instagram and Facebook. We can’t individually remind you of when things are coming back so the fastest way is to do it on Social Media.

Warranty on any 80% frames & receivers:

Please keep in mind that once you drilled/cut/alter/modify your Polymer80 other than its original 80% form, it then becomes a "firearms" per ATF. This means that ALL Polymer80 frames are not refundable, no exchange, no returns. If you have any issues with your Polymer 80 frames and/or parts for your frame like 80% frame, jigs, drill bits, end mills, pins, springs and both front and rear locking block; You will need to contact Polymer80 directly at Polymer80 handles all warranty/RMA for all Polymer80 product lines including their lower parts kit, slides, barrels, etc. You need to inspect your order as soon as it arrives to you. If you somehow received the wrong frame and started to turn it into firearms, that item can no longer be returned. So please check your order asap!


To make a purchase from MDX ARMS, you certify the following is true:


  • You are a permanent resident or US citizen, nor have you renounced your citizenship.
  • You have never been convicted of a felony.
  • You have never been convicted of a crime punishable by more than one year in prison.
  • You have never been convicted of a domestic violence crime misdemeanor.
  • You have never been committed to a mental institution or adjudicated as mentally defective.
  • You are not currently under a court order restraining you from stalking, threatening, or harassing a child or an intimate partner.




1.) What do you have in stock?

Answer: We only update "Latest Restock' Page. If you can check out using that category then its in stock. 

2.) Can you let me know when you will get more stuff in? 

Answer: No, we will not let you know individually when we will have restock. Follow/Like us on Social Media for the latest arrivals. 

3.) I'm local, can I pay cash and pick up to your store?

Answer: We do not have a store. Online Only

4.) It shows out of stock online, can I still buy it from you?

Answer: If it shows out of stock, It means out of stock. No, you can not pay more to get cut in front of everyone. 

5.) I placed an order xxxx, when can I expect the order to ship? 

Answer: We process orders as we receive them. This means when we get to your order then that's when we will process it. If our shipping delay says xxx days, then just expect that. If we ship it any sooner then you're welcome! We do not like seeing orders waiting to be fulfilled so trust us, we want your stuff out of our shop. We normally will have Shipping Delay Updates posted on each product description and on our checkout page.

6.) My order online says "awaiting fulfillment, did my order go through? 

Answer: When you place an order, it will automatically go to "awaiting fulfillment" status. This means we have not processed your order. You will get an email confirmation saying that your order has Shipped once the label is created. For the most part, we create labels when your order is packed and ready to ship. We suggest to wait a full 24hrs before trying to track your package. In some cases if we get swamped, we will generate your tracking but it won't ship until we get that batch all ready to ship. Also, we will request signature required on your order to ensure its being received by someone at your physical address. We would hate for it to get stolen or delivered to the wrong address.

Please keep in mind that we're constantly working on getting everyone's orders out as fast as possible. We truly appreciate your continued support and your understanding in these crazy times. Stay Safe and Healthy!

MDX Arms Family!