Custom 10 Rd 9mm RIA Blued Mags - Factory Dimpled
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These are high quality, high reliability magazines for Armscor Rock Island Armory (RIA) High Capacity HC A2-style 9mm pistols, such as the RIA 51679 Tac Ultra FS and 56645 Pro Match.  Specfically, these are for the A2 HC pistols that use the 17 round 54180 magazine and are designed for smooth reliable feeding. They are not for the traditional 8-round 1911 pistols (I would recommend Wilson Combat or Tripp Cobras if you have one of those pistols and lots of websites carry one or the other).

These mags hold 10 Rounds and have a blued finish.  These magazine tubes are dimpled at the factory to limit capacity to 10 rounds and can be disassembled.  We do sell 19 round magazines with a block and the base plate secured by an aluminum pop rivet preventing disassembly.  These mags are specifically made for shooters in locales that require a 10 round limit.  Again, these are different from our other 10 round magazines due to the dimples pressed in at the factory - they are the "dents" you see in the sides of the tubes in the photos. 

These are compatible with Para Ordnance or "Para" style P18 magazines.  If you have a pistol that uses Para style magazines, these should work with them.  I would recommend searching the web to confirm if Para style mags work directly in your pistol or require modification. The mag lips are short so the round is not fully supported - RIA pistols do not require that for example.  If your model of pistol requires the cartridge to be fully supported, these will not work.

Each of these mags were tested specifically with the RIA 56645 Pro Ultra Match or 41679 Tac Ultra FS.  

You must choose the thickness of Dawson base plate that you want.  +100, +200, +300.  The +100 fits flush with the bottom of the feed ramp.

Click here for a blog post that has quite a few photos of mags and the different sizes of base plates.

Please ALWAYS Test Your Magazines

I do have something I want every reader/buyer to remember:  PLEASE Always test the magazines before you need to rely on them - you must verify that a given combination of pistol, ammo and magazine are reliable and this is true for any firearm. My liability is limited to the purchase price of the magazine and they are warranted against manufacturing defects only (not including any required feed lip tuning) for 90 days. 

Do you have a brand new pistol?

A brand new RIA pistol will have feeding problems right out of the box because it does need to wear in and this may take 100-200 rounds.  When you get a new RIA pistol, be sure to clean and lube it.  I would then recommend cycling the slide a few hundred times (literally) to help smooth things out before you get to the range the first time.   It may still have some feeding problems after this but they will be a lot fewer.  By the way, the need to wear in or break in is very common in firearms so don't get discouraged right away.

Dawson Plates and Wolff Springs + Arredondo Competition Followers and Springs

We do sell Dawson base plates, Wolff Springs and Aredondo followers and springs that you purchase separately if you are interested.  Click here for that page.

  • Regulations

Due to irrational firearm hysteria, we can't ship magazines to locations listed in the USCCA magazine limit guide page that prohibit magazines of this size (16 rounds is my stated capacity) plus try to maintain a list of other areas. I will not ship disassembled "magazine kits" to those locations either - sorry. I can't export them either - I hate having to put all this legal stuff in but I must.  It is the buyer's responsibility to ensure compliance with all applicable laws and regulations before buying these magazines.

The following are the limits per state that we are aware of - and please email us if something has changed:

  • California: We can no longer sell magazines to California due to liability issues
  • Colorado: 15 rounds
  • Connecticut: 10 rounds
  • Delaware:  17 rounds
  • Hawaii: 10 rounds
  • Illinois: We will look up your city and county to see if you have limits.  For example, Chicago and Cook Country are limited to 10 rounds.  
  • Maryland: 10 rounds
  • Massachusetts: 10 rounds
  • New Jersey: 10 rounds
  • New York: 10 rounds
  • Oregon:  Measure 114 is temporarily restrained
  • Rhode Island:  10 rounds
  • Vermont - 15 rounds for pistols
  • Washington D.C.: 10 rounds
  • Washington State: 10 rounds

This product is export controlled by US Government Export Regulations.  We will not export to any country.

Terms and Limit of Liability

This is for one magazine - the pistol in the photos is not included.  We are not liable for any damage or injury resulting from use or misuse of this magazine.  The buyer assumes all liability.

Please do not use Paypal to purchase magazines.  We do take American Express, Master Card, and Visa so please use one of those methods.  Sorry - Paypal's policies do not allow for many firearms and parts transactions but we have quite a few pro-gun customers who do like to use them for other products we sell.


  • Item #: RIA9mmP18HCBlue_10rdDimpled

Custom 10 Rd 9mm RIA Blued Mags - Factory Dimpled

Price: $54.99
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