Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Enjoy our FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart
SIG SAUER Ambi Mag Catch Assy, M400, 516
Currently Unavailable View Product
Compare (0)
Most Helpful Positive Review Good for Lefties
This is the same part that comes on the MPX (and other SIG weapons). I'm retired military and a leftie. Wish this part had been on every rifle I'd ever been issued. Works great. You need to be somewhat more intentional about manually locking the bolt back (because of the proximity to the bolt ...
Read More...
Most Helpful Negative Review It’s just okay
I bought this one and a norgon clone to see what I liked best being a left handed shooter. I ended up keeping the norgon. This one definitely works but it’s much more difficult to drop a mag with. You have to use the very tip of your finger and push straight in. Not a big deal at all but with the no...
Read More...
Show
Sort by
Filter by

Great product! Satisfied

by Tkwon, from CA, United States Written on December 2, 2020
Awesome mag release I have zero complaints easy to install no problems whatsoever. I installed it on my aero precision featureless build and it works wonderfully. I wish the mag release button was a tiny bit bigger but I could always just get a bigger one separately and replace it in the near future.
Would recommend: Yes
Was it helpful to you? Yes | No

Best ambi mag catch I've found

by Badtrevor, from OR, United States Written on September 2, 2019
These work really well, much better than others I've tried off that auction site. The only hangup is if you are using an oversize bolt catch the levers will be very close. No probs with mil.spec.catches. Not the best looking part but its function is top notch.
Pros:
  • Firm hold on mags, easy left hand releases
Cons:
  • Ambi lever sticks out a bit
  • Not ideal with oversize bolt catches
Best Used for:
  • Keeping mags in yer rifle
Would recommend: Yes
Was it helpful to you? Yes | No

A good ambi mag release...

by Dave, from VA, United States Written on July 27, 2019
I was given a Sig release and I tried it. I felt it was easier to use than the Norgon that I had been using. The only thing is that I don't know how the Sig Sauer will hold up to rough use. Time will tell...
Would recommend: Yes
Was it helpful to you? Yes | No

Works surprisingly well

by Phil, from AK, United States Written on May 19, 2019
I was pleasantly surprised by how effective this simple addition made to my AR. In all honesty, it’s not as easy to manipulate the button as a standard mag release button but it definitely works. With training, the mag release will definitely come in handy.
Pros:
  • EASY INSTALL
  • it works
Cons:
  • Kind of hard to manipulate
Would recommend: Yes
Was it helpful to you? Yes | No

Amazing ambi-catch

by Franz, Verified Owner from WV, United States Written on March 28, 2019
This mag catch, wether actually made by SIG or not is the same type used by SIG for their rifles, it's completely useable on any standard lower (some billets may not work). I have this on several lowers including FMK poly, Anderson, Aero, and Ruger. It's must better than the hinged style that can cause weak lock up on the mags and require harder seating. Over all this works exactly like milspec catch with a cam lever that sits right below the BHO lock. It clears my SI extended bolt catch with no clearance issues either.
Pros:
  • Solid lock up
  • left hand friendly
Cons:
  • can scratch finish
Would recommend: Yes
1 of 1 found the following review helpful.
Was it helpful to you? Yes | No

Sig ambi-mag release

by Rick, from GA, United States Written on January 27, 2019
If you have an ar lower and are looking for a ambidextrous magazine release this is very well made. It is machined with a paddle attachment so pressing with your left hand to release the mag is a breeze. I am using it and also comparing to five other release models I currently own. I'm impressed with this one over 2 of them already.
Pros:
  • Easy to use & operate
Cons:
  • none can see
Best Used for:
  • Left and Right hand shooters
Would recommend: Yes
2 of 2 found the following review helpful.
Was it helpful to you? Yes | No

Perfect product

by Marcus, from TN, United States Written on January 19, 2019
Great product, very well made and handy. Having an ambi magazine release is very helpful especially when practicing with your off hand. You will not realize how handy it is until you have installed it. I advise everyone who can to purchase this item.
Would recommend: Yes
1 of 1 found the following review helpful.
Was it helpful to you? Yes | No

sig I amdexterous magazine release

by Derek Sousa, Verified Owner from FL, United States Written on January 18, 2019
Awesome product I would buy more I’ve bought three of them and will buy more. It was everything I wanted other than the springs not being included along with the button but other than that awesome working product
Pros:
  • awesome
Cons:
  • No spring or button
Best Used for:
  • lefty shooters
Would recommend: Yes
1 of 1 found the following review helpful.
Was it helpful to you? Yes | No

Works as it should.

by Seth, from OH, United States Written on January 18, 2019
Easy install. Smooth operation. Exactly what I was looking for. Definitely worth the money considering the alternatives are much more expensive and not better in anyway. I’ve had the KAC, Norgon and Troy and this is on par with all of them and better than the Norgon and Troy by far.
Pros:
  • Easy of use. Simple. Button is good size.
Cons:
  • None
Best Used for:
  • Left handed shooters.
Would recommend: Yes
3 of 3 found the following review helpful.
Was it helpful to you? Yes | No

Great Part

by Rob d, from MI, United States Written on December 13, 2018
Great part works as expected makes it easy to drop the mag no matter what hand your shooting with
Easy to install I used a seekins button with it. Finish matches the ar I installed on

Not much else to say about it
Would recommend: Yes
Was it helpful to you? Yes | No
There are no reviews that match your criteria. Would you like to review this product?