Race Master / Alpha-X Insert Block Assembly (Magnetic)
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Manufacturer: Double-Alpha Academy
Race Master / Alpha-X Insert Block Assembly (Magnetic)Reviews: 4.8 of 5 Stars!(4.863)
49.95In stock! Order now!

Race Master / Alpha-X Insert Block Assembly (Magnetic)

PLEASE NOTE: If you are ordering a holster or an insert block for a CZ TS checkmate or CZ TS Orange, please contact us first with a picture of your trigger guard area. CZ seem to be using two styles of frames for these pistols ,and without seeing your gun, we will not know which insert model you need. More details here: Click here for more details.

Over the years, we occasionally heard from customers the following complaint: “sometimes, when I try to re-holster my gun, the slide lock is down, and I have to lift it manually”. This complaint was almost exclusively from Tanfoglio or Sig shooters.

As it turns out, the issue never was that the slide lock had fallen down, but rather that the edge of the trigger guard on these guns, being steel and often a little sharper than plastic guns, was catching on the upper tooth of the slide lock – rather than sliding past it to engage on the lower tooth, as it should. As a result, the slide lock would move down under the trigger guard, rather than engaging on it, forcing the user to first lift the slide lock all the way up before re-holstering.

This issue is caused because the slide lock is only lifted on the draw as far as it needs to go to release the gun. That means that upper tooth is displaced sideways only as far as was needed – and no more. Not all the way to the upper end of the track. 

So – after some trial and error, research and development, we are pleased to offer you the new Magnetic Upgrade option for your Racer or Race-Master holsters.

This system incorporates a pair of powerful magnets, which are positioned to reject each other – creating what feels like a spring-loaded system – and two very distinct positions for the slide lock – all the way down – and ALL the way up.

Now, as the gun is released on the draw – the magnets continue to push the slide lock upwards – higher than the gun itself pulled it – thereby ensuring that when you come to re-holster, there is no chance of catching that upper tooth as you holster. 

An additional benefit of this magnetic system is a distinctive “click” which is heard as you holster. Something that is common with other holsters, and requested by some for the Race Master as well.


Read the following instructions carefully before using this holster or Insert Block:

  • Never holster a loaded firearm without first engaging its safety.
  • Check periodically to ensure your safety is functioning correctly.
  • Never disengage the safety of the firearm until well clear of the holster and the muzzle is pointing down range.
  • Make sure you are fully familiar with the correct use, and adjustment of your DAA Holster before attempting to use it with a loaded firearm.
  • Make sure that you have the correct holster/Insert model for your type of firearm.
  • Do not use a holster that is unsuited to your firearm, as that could result in unreliable retention or release which could lead to a fatal accident.
  • Never use a trigger shoe or a widened trigger with this holster.
  • Double check that the retention and release work well, particularly if any modifications have been made to your firearm.
  • Care must be taken to ensure the gun is placed properly when returned to the holster. It if it is not positioned correctly, it will not be held securely and may fall out.
  • Never holster the gun quickly or with force, as that increases the chance of making contact with the trigger.
  • Any adjustment or modification to the holster design may render it unsafe or cause malfunction.
  • Take care that the firearm is not dislodged or knocked when holstered, particularly when the holster’s safety lever is unlocked. As this holster has no muzzle support, take care that the muzzle of the gun is not bumped upwards, as this may dislodge the gun from the holster
  • Keep your fingers well clear of the trigger when holstering and drawing the firearm.
  • The holster should be locked when running or jumping with a holstered gun, or you should keep your hand on the gun’s grip to prevent it accidentally falling.
  • Handling a loaded firearm, and drawing it from a holster is inherently dangerous. You do so entirely at your own risk and responsibility.  
  • Liability is limited only to the replacement of this holster or parts thereof. No additional warranties are expressed or implied by the manufacturer or the distributors.


Showing: 1 - 5 of 63
Race Master / Alpha-X Insert Block Assembly (Magnetic)
Vladimir Furman
Date Added: Friday 01 February, 2019
Purchased 2 Inserts - for CZ Czechmate and Tanfoglio Xtreme custom gold team. For CZ it is perfect. No need to adjust at all. Can use also for TS Orange. Win Tanfoglio it is a big design mistake. If you have any Tan Xtreme line gun with square trigger guard be ready to spend a lot of time to cut off at least 1/8\" along the entire side of the block in order to fit it. [DAA reply]: wrong insert was ordered - you should have selected the Stock III insert and not Stock II.
Rating: (2 of 5 Stars!)
Race Master / Alpha-X Insert Block Assembly (Magnetic)
Bruce Cranmer
Date Added: Friday 07 December, 2018
As always, your products are high quality and work as advertised. I own several magnetic block assemblies and change them per activity to use the weapon best suited for the course of fire. I love the complete rig and will only use your products in competition. Thank you for your attention to detail and craftsmanship!
Rating: (5 of 5 Stars!)
Race Master / Alpha-X Insert Block Assembly (Magnetic)
John R
Date Added: Tuesday 02 October, 2018
I love that you can swap out the blocks. Giving options for different firearms usage. I compete in USPSA Open Division and have swapped out pistols on occasion. These Alpha-X inserts work perfectly every time.
Rating: (5 of 5 Stars!)
Race Master / Alpha-X Insert Block Assembly (Magnetic)
Date Added: Monday 01 October, 2018
Excellent product, I had to adjust a little bit to fit my Tanfoglio Stock 1.
Rating: (5 of 5 Stars!)
Race Master / Alpha-X Insert Block Assembly (Magnetic)
Don Buchanan
Date Added: Tuesday 21 August, 2018
bought the insert for a Race Master to fit a Tanfoglio Gold Team open gun. I found it easy to install, it locks up tight but comes out like greased lightning when the beep sounds would definitely recommend this setup to anyone looking for a fast holster that is also very secure.
Rating: (5 of 5 Stars!)
Showing: 1 - 5 of 63

Race Master / Alpha-X Insert Block Assembly (Magnetic)

Full Name:
E-Mail Address:
Telephone Number
Alpha Dynamics USA
2908 Betz Court, Orefield, PA 18069
Phone: (888) 628-3233 or (610) 366-9752
Fax: (610) 366-9680
E-mail: sales@cedhk.com
Models and Fitting

Q: I have one of the newer Sig X5 models. Will the Sig X5 insert block fir the new model?

A:, yes it will. In fact, we tested the new Sig X5 and X6 models and they all fit to the X5 insert block.