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Adversary Holster (A-3)

(74 customer reviews) 74 reviews Add your review


  • Sweat/Body Shield
  • Custom Molded to each weapon
  • Covers the full length barrel & Trigger guard
  • Heavy Duty Nylon stitching for better retention

See more details below in the description


Gun Make & Model (A-E) (1911’s)

You will find only manufactures that start with the letter A-E in this box. If you do not see your manufacture listed that starts with the letters A-E, than please contact us through email or phone. We get new manufactures weapons in daily. You can reach us at (336)879-2166 or

Gun Make & Model (F-J)

You will find only manufactures that start with the letter F-J in this box. If you do not see your manufacture listed that starts with the letters F-J, than please contact us through email or phone. We get new manufactures weapons in daily. You can reach us at (336)879-2166 or

Gun Make & Model (K-O)

You will find only manufactures that start with the letter K-O in this box. If you do not see your manufacture listed that starts with the letters K-O, than please contact us through email or phone. We get new manufactures weapons in daily. You can reach us at (336)879-2166 or

Gun Make & Model (P-R)

You will find only manufactures that start with the letters P-R in this box. If you do not see your manufacture listed that starts with the letters P-R, then please contact us through email or phone. We get new manufactures weapons in daily. You can reach us at (336)879-2166 or

Gun Make & Model (“S”)

You will find only manufactures that start with the letter “S” in this box. If you do not see your manufacture listed that starts with the letter “S”, then please contact us through email. Please indicate your exact make and model of your weapon (especially revolvers) at checkout in the comment box.

Gun Make & Model (T-Z)

You will find only manufactures that start with the letter T-Z in this box. If you do not see your manufacture listed that starts with the letter T-Z, then please contact us through email or phone. We get new manufactures weapons in daily. You can reach us at (336)879-2166 or

Attachment (Laser Light)

When you come to checkout there will be a comment box, there you can type your exact make and model of your laser if it’s red or green laser etc. Also, if your weapon has different keys (like on a picatinny rail) that the laser/light can slide onto please let us know and send us a picture through email

Threaded Barrel/Red Dot Sight/Aftermarket Sights

**What is a red dot sight? Type of non-magnifying reflector (or reflex) sight for firearms, and other devices that require aiming, that gives the user an aimpoint in the form of an illuminated red dot.
**FAQ: If your Gun Make & Model option has the weapon and RMR together (ie: Sig Sauer P320 Full Size RX) please choose NO, so you do not get charged twice for the same attachment.
**Please type the Red Dot that you below
**If you have any aftermarket sights (night sights, suppressor sights, big dot sights) higher sights than normal, than please choose “YES” and specify your make and model
**Please keep in mind that once the order is received, the manufactures will check over the order to make sure all the options that you choose will function properly when manufacturing. Some options may not work properly when manufactured. This is something that we may not know until the holster is being built.

Grip Laser

If your laser is a grip laser and mounted on the grip of the weapon than please choose “YES” and specify your make and model of your laser.

ECR Instant On Viridian Lasers

Enhanced Combat Readiness (ECR) now part of every universal Viridian laser. This can only be used with the Viridian C Series, X Series Gen 2 and Gen 3, and Reactor Series are equipped with INSTANT-ON technology and activate. Please see FAQ page and our BLOG page for more info. Will not work on E-series.

Shooting Hand * 

Color * 

Stitching Color * 

Wanna spice up your holster a little, or have a different holster than anyone else? Make the holster unique and custom by adding some color stitching to the front of the holster only. Each color is made with heavy duty nylon thread, to resist easy tearing or dry rot damage. Keep in mind that colored thread may affect the color of the holster, the holster could be lighter or darker because its a different dying processing and so the dye will not run onto the thread.

Stitching * 

Double stitching is a second line of stitching. This will aid in better retention and long term use of the holster. (extra $15.99)

Holster Attachment * 

How to Carry the Holster? * 

MTR can add a custom cant to the holster for a inside the waistband (IWB) small of back (SOB) carry position.

Internal Liner

When we craft a holster we use the smooth bull hide leather on the outside and the ruffer portion on the inside. When someone adds a liner we add a second layer of thinner bullhide leather and use the smooth side inside the holster with the two ruff sides against each other. This process is to enable is a smooth drawing of the weapon, instead of suede having some friction when drawing. Secondly, suede tends to not mold as easy on the inside as the bullhide, enabling less retention. The bullhide leather molds with great detail and definition in the leather. The bullhide leather is not as thick as the suede causing better concealment of the holster when wearing.

Holster End

The holster end means that the barrel of your weapon will be cover, but you have the option to having the holster end sewn at the bottom or leaving it open. This is a preference of choice. Leaving the holster end open is good for target shooting. This will allow for debris to exit the barrel of the weapon after shooting a lot. Flip side, if carry the weapon in a pouch or outdoors (riding a horse, bike, hunting, etc.), one may want to enclose the bottom. So debris will not enter the barrel of the weapon. (Please see FAQ page for more information).

Exotic Leather

Choosing exotic leather will increase the strength and durability of the holster. . The exotic leathers listed below is some of the strongest leathers available! The texture is much more defined than the others leathers. Exotic leather is a dense material that helps resist moisture and scratch proof. Well worth every penny! Learn more about the function, texture, trim vs full and colors on our FAQ & BLOG page. One of our most expensive leathers available is alligator, please call for prices and colors available.

Thumb Break Strap

On large DA (double action) weapons the thumb break is placed decocked. Smaller SA/DA (single action/double action) weapons the thumb break is placed cocked and locked. If you would like your thumb break placed differently, then please add that in the comment section. If you order a holster with a thumb break there is no returns or exchanges or refunds under any condition.


Adversary Holster (A-3) is made for all small weapons and intended for IWB (inside the waistband) carry. This holster comes with a heavy duty powder-coated black single holster clip. One can upgrade the holster attachment to our Ulticlip, this will able you to clip the holster onto any material (boot, pants, etc). The Ulticlip helps for better concealment of the clip because the belt will go over the clip and will not show. Adversary holster (a-3) comes with a double layered reinforced sweat shield/body shield, this helps for long term use of the holster. This enables the weapon to NOT touch the body and your body from touching the weapon. No more sharp edges rubbing up against the body. And no more “Wohoo” because the weapon is cold and touching you. Natural body oils (sweat) is very acid and can cause internal rusting inside of the slide of hammer of the weapon. Keep in mind if your weapon is stainless steel, sometimes the internal parts of the weapon is not stainless steel.

MTR Custom Leather does not stop there with the quality, MTR ensures on the Adversary Holster (A-3), that the entire barrel is completely covered, to prevent any damage of the barrel and sight. Also helps with the draw, one does not have to worry about the sight catching when drawing. Quality is a must, therefore, we use heavy duty nylon stitching, to ensure long term durability of the holster. One can add double stitching to the holster, this will increase the retention of the weapon in the holster.

Check out the fine details on the holster. We use 20 tons of pressure to acquire the best retention on the weapon while seated into the holster. The Adversary is hand molded to each weapon to ensure the fine details in the holster to fit nice tight like a glove. The holster clips can fit up to 1-1/2 gunbelt(2 layer) or 1-3/4 regular belt (1 layer).This is the newest and affordable holster on the market.

What is the difference between IWB Palm in or out?

Ask yourself. When you go to draw your weapon is the palm of your hand facing inward towards your body or outwards away from the body?

Vertical drawing is good for appendix carry, or if you would like to draw the weapon straight up. however, some people like a slight cant forward because it’s easier on there elbow/shoulder and can be faster

If your carrying the weapon sob (small of the back) then I would recommend adding the cant

Don’t forget about the upgrade on the holster clips. The new UltiClip can be placed in the Adversary A-3 holster. The ulitclip is more like a suspender clamp, that clips directly onto the pants not the belt. This way you wear the holster without if wanted. This is great for jogging pants, boots, bed side, vehicle, etc. CHECK OUT THE VIDEO BELOW. CHECK OUT OUR FAQ PAGE AND BLOG PAGE FOR MORE VIDEOS AND INFORMATION ABOUT ULTICLIPS.

If you would like for your holster to be tuckable, than check out our A-3A Tuckable Adversary Holster 


Weight 1 lbs
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74 reviews for Adversary Holster (A-3)

  1. Jimmy S. (verified owner)

    disappointed with the holster mouth. the web site says reinforced mouth but it collapses. The mouth reinforcement like on my a3 tuckable is much better.

    • MTR Custom Leather

      MTR is very sorry for the mouth of the holster not staying open when drawing the weapon IWB. This holster is only reinforced on the back side of the holster instead of all the around the mouth of the holster to create less bulk when wearing IWB. You are correct that the A-3A holster does have the full reinforced mouthpiece around the opening of the holster. If you would like to return the regular A-3 for the A-3A we can do that for you if you like. We want you to be satisfied with your purchased from us! Thank you for your business with us and we hope to continue the business in the future!

  2. Anonymous (verified owner)

  3. Carlos Castillo (verified owner)

    Great workmanship! Unfortunately, a little too long for the wait

  4. David C. (verified owner)

    The best inside the waistband holster on the market! It stays where you put it and is super comfortable.

  5. JOHN S. (verified owner)

    This is the 4th holster I’ve purchased from MTR, and I couldn’t be happier. It is unbelievably well made and it fits my gun like a glove. And, I know it will stand the test of time, just as the 3 previous purchases have.

  6. Kelly W. (verified owner)

    Love this holster. This is my EDC now and I couldn’t be happier. It holds my Hellcat firmly but the release when drawing is very smooth.

  7. Joseph Castelli (verified owner)

    Once you put your t shirt over this is disappears , love my new holster.

  8. Thomas Harmon (verified owner)

    Great fit as normal and comfortable to carry daily. What else do you need?

  9. JOHN SIMONSON (verified owner)

    Another MTR holster, and I couldn’t be happier. High quality at a reasonable price, and it fits the gun perfectly. I highly recommend them.

  10. Anonymous (verified owner)

    Much better quality than I expected! Well constructed and fits perfectly.

  11. Roy G. (verified owner)

    Great Product and a Perfect Fit – as always! Thank you!

  12. vurtilopmer

    I?¦ve recently started a site, the information you offer on this site has helped me greatly. Thanks for all of your time & work.

  13. Anonymous (verified owner)

    Very good quality leather, well assembled, comfortable to wear. A big step up over major brand name holsters.

  14. Geoffrey Simmons (verified owner)

    Great fit, utility clip binds a bit when opening and closing, but hopefully that will improve over time with break-in. Lengthy wait for delivery unless you pay the express shipping. Excellent quality leather and stitching.

  15. David Lambert (verified owner)

    Fantastic as always!! Thanks

  16. David R. (verified owner)

  17. John L. (verified owner)

  18. Bruce W. (verified owner)

    Very well made. The fit is excellent. Would buy again from this company.

  19. Dr. Ronald Weinstein (verified owner)

    Very well made holster for my M&P Shield EZ-9. The holster accommodates my rail-mounted laser with ease. Worth the wait for custom quality.

  20. Craig (verified owner)

    This is the third MTR holster I’ve purchased. I am very happy with the quality and comfort while in use. I would highly recommend anyone looking for a holster to shop MTR’s site.

  21. Eric M. (verified owner)

    Ordered this holster for a SIG P227 SAS. It fits the gun perfectly and is surprisingly comfortable for everyday wear with a near full-size pistol

  22. Eric M. (verified owner)

    Excellent holster for appendix carry of a snub-nose revolver. I wanted something with a belt clip for times when a sticky holster isn’t sufficient. This does the job perfectly – functions exactly the way I want, and doesn’t add too much bulk for IWB carry.

  23. Anonymous (verified owner)

  24. Rick H. (verified owner)

    So I got this holster for my wife carry 357 in absolutely loved it. She said it was very comfortable The Way I Are initial public post that she uses the most. Just loved the holsters that would have gotten from y’all over the years

  25. Matt (verified owner)

    This is my second MTR holster and I am very satisfied with the quality and customer service.

  26. Dagoberto Diaz (verified owner)

    Like your product I have bought three holsters from you. However the one thing I do not like that it takes a long time to produce unless you pay more for it to be done sooner which is to expensive to do.

  27. julio (verified owner)

    A very good holster for the money, fits like a glove!👍

  28. Andy (verified owner)

    Wonderful quality and fantastic customer service. I ordered the wrong holster originally called their customer service and got it straightened out. Great company to work with.

  29. Gregory Potter (verified owner)

  30. Kevin B. (verified owner)

    After adding a threaded barrel and crimson trace laser to my H & K VP 40 it became more of an obstacle to find a good holster that fit correctly. I tried a kydex first and with the laser it was too tight and made it difficult to draw my pistol. This leather holster fits perfect and makes me feel more comfortable to carry my .40 now.

  31. Lew (verified owner)

    Fits my Hellcat OSP like a glove. Concealment, retention, quality materials, and handmade in the USA by a skilled craftsman make this holster a must have for every day carry. I’ll be ordering another one for my M&P Shield 9 soon.

  32. Andre Felton (verified owner)

    Awesome fit!

  33. Gordy (verified owner)

    Very nice fit high quality costom holster that fits my abnormal setup (crimson trace light guard).

  34. Clem F. (verified owner)

  35. Erik N. (verified owner)

    Excellent fit and finish. This is my third holster of this type. The quality changed me from using kydex to all leather.

  36. Bryan Barnett (verified owner)

    Love it will be a return customer Old school quality made with modern accessorys

  37. Anonymous (verified owner)

  38. John T wortham (verified owner)

  39. Robert E. (verified owner)

    Very well made – about as low-profile as you could get

  40. Anonymous (verified owner)

    Excellent workmanship a very good holster!

  41. Sheron D. (verified owner)

    The best leather holster ever!

  42. Charles Davis (verified owner)

  43. FREDERICK ISAVIAN (verified owner)

  44. Clark T. (verified owner)

    Excellent quality holster with a perfect fit.

  45. Tyler (verified owner)

  46. William R. (verified owner)

    Nice quality holster but 90 days is a bit long for delivery.

  47. Samuel Kinkead (verified owner)

    great product.

  48. John D. (verified owner)

    This is my third purchase from MTR. Absolutely the best made holster on the market.

  49. Joseph S. (verified owner)

    It was worth the wait, fits the gun perfectly

  50. Chad (verified owner)

    Over all looks good but I’m concerned about the leather that goes over and across the magazine release button.

  51. Eric B. (verified owner)

    I’m extremely happy with this holster! The quality and appearance are beyond what I expected and my pistol fits perfectly.

  52. SERGIO COLLI (verified owner)

  53. Preston Pegram (verified owner)

    Great product, reasonably priced.

  54. Joseph Seres (verified owner)

    This was the 3rd holster ordered — perfect in every way.

  55. monty (verified owner)

  56. Joseph Seres (verified owner)

    I bought this holster for my son. He was amazed. He stated that it was like the holster was molded to fit the gun — an absolute perfect fit!!

  57. michael w. (verified owner)

    This holster is a beautiful concealed carry holster. There are many options that you can have to personal the holster to your liking. Try that limited edition copper color thread it really looks good with black leather

  58. MARCOS A MELENDEZ VARGAS (verified owner)

  59. Phillip (verified owner)

  60. Robert Barnett (verified owner)

    Fits like a glove….. They said it would take 3 weeks before shipping, I got it in a week….. Awesome company, go with them!

  61. Paula L. (verified owner)

    Love my MTR holster. This is the fourth holster I have purchased and very pleased with each one. American made and quality.

  62. Eric B. (verified owner)

    My 2nd MTR Adversary and I’d buy again! Great craftsmanship!

  63. tim (verified owner)

  64. Preston (verified owner)

    Great piece of kit! I’m staking my life on it.

  65. MARCOS A MELENDEZ VARGAS (verified owner)

  66. Preston (verified owner)

    Great product

  67. Joseph A. (verified owner)

    Fits my pistol well. Good quality and am very happy with my purchase. Will definitely use this vendor again.

  68. Hugh Thompson (verified owner)

    High quality, perfect fit, comfortable! This is my third MTR!

  69. Ocie (verified owner)

    This is the 2nd MTR I have bought for my wife ,for a 2nd pistol she loves the 1st one so much 😍

  70. Elmo H. (verified owner)

    Very pleased so far with the entire experience doing business with MTR.

    1) Communications with MTR are direct and honest, no obscure or deceptive verbage!

    2) Delivery estimates are based on current back order workload. Actual receipt date was one day less than original earliest ship date estimate!

    3) ,Holster FITS my German pistol perfectly, selected materials and workmanship are of the highest quality. (See photos, to follow this communication).

    Based on my first experience, I am recommending and suggesting all my family, friends, and associates try MTR for their leatherwork needs.

    May God Continue Blessing your families and business efforts.

  71. Donald (verified owner)

    This is my second holster from MTR . This holster like my first one fits pistol like a glove ! Their holster quality is above price point they have just the right amount of retention to hold pistol firmly . They also have enough rigidity to reholster after pulling weapon from undercover carry and they are 100 % Made in U S A !

  72. Julius S. (verified owner)

    Fits perfect, conceals perfect, comfortable. Will purchase in future.

  73. William (verified owner)

    Good Quality, Good Fit, Good Price

  74. JAMES R. (verified owner)

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