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Base Pad For Sig Sauer MPX 9mm 30 Round Stock Magazine


Always Enjoy Free Shipping On Orders Of $200

Product Description

Not for sale to California residents. A courtesy email will be sent to CA residenta who place an order for a base pad that has the capability of taking a magazine past ten rounds. Ultimately a refund will be issued. CA residenta can only purchase +0 base pads or GLOCK 43 and GLOCK 42 base pads. The 43 and 42 base pads do not take the mag capacity past ten rounds. 

Installation Tip: Remove the stock MPX base plate and floor plate from the magazine so that only the spring and follower should be left. Slide the base pad onto the magazine and then finish pressing it into place abruptly and firmly. Easing the base pad onto the magazine may result in the spring not dropping fully into the pocket in the base pad.

TTI Firepower Sig MPX Carbine Magazine Extension
- Comes with extra power Silicon Carbide spring to enhance feeding and to ensure slide lock.

- Overall weight 4.7oz.

- Length, 2 inch.

- Patented, proven push-pin design.

- No tools needed, just push the pin down, slide the base pad onto the magazine and push the pin up to lock the base pad onto the magazine. Easily attaches and detaches from the magazine.

- No specialty tools, devices, or additional springs required for assembly/disassembly, simply pop off the basepad and remove the insert at the bottom of the spring and slide on the extension.

- One piece design; no small parts to keep track of.

- Minimal length addition to allow usage while in a prone position.

- Holds 40+1 in 9mm.

- The added weight helps the magazine drop free easier for faster reloads.

- CNC machined from billet aluminum.

- Hard anodized.

- Made in the USA.

This Taran Tactical Innovations Sig MPX Carbine base pad works on the Sig MPX stock 30 round 9mm magazine. This TTI base pad will add 10 extra rounds to your stock Sig MPX Carbine 30 round magazine. This TTI base pad does add a little extra weight to the magazine which helps the empty mag drop free easier for faster reloads. This TTI Sig MPX base pad, just like all of our base pads, is designed to give you the edge over your adversaries. We use our patented push pin design to lock the base pad to the magazine, which makes for easy field stripping and cleaning your magazines between stages. Just push down the pin, slide the base pad on and push the pin up to lock the base pad onto the magazine. Our one piece design is great because there are no extra parts or tools needed to attach the base pad to your magazine. The base pad itself is machined out of billet aluminum and is hard anodized to ensure durable long lasting color. All machining and manufacturing is done in the USA.

WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

Product Reviews

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  1. Simply the best modification for the MPX magazines!

    Posted by John on Nov 14th 2019

    The TTI magazine end cap is marvelous and helps the SBR function like a dream. I’m curious running a hybrid 46 on it and it releases quick drops straight, the fit and finish is perfect. I’ve also got the mag well adapter which is flawless as well. Get them both if you can. They are the best there is. Thanks again guys and sorry about the fire and speedy recovery!

  2. Amazing product!

    Posted by Scott Korbas on Aug 15th 2019

    This is a must have! Perfect fit and finish! Perfectly machined to have zero movement. Definitely aids in faster magazine drops and quicker roads. Easy to install!

  3. sig mpx mag extension

    Posted by mike in missouri on Jul 17th 2019

    The product is great. it did not list if it was for gen 1 or gen 2 mags so I took a chance. they fit on my gen 2 mags and added 10 extra rounds. good fit and finish. very happy with product. thank you.

  4. Excellent Product

    Posted by DO on Jun 10th 2019

    The fit and finish of the +10 base plates is perfect. I had no issues with installation. In addition to the extra capacity, I can't help but think that the aluminum base plate would add some extra durability to the mag should you drop it. I highly recommend this product

  5. It works

    Posted by BravoSeven on Mar 25th 2019

    I purchased the black 10 round magazine extension. Simple and easy install, extra power spring included to make up for the difference in length, fit and finish is perfect, and shipping was fast. I prefer Taran mag extensions over others I've purchased. I've already ordered more. If you want and/or need 10 more rounds for your MPX mag then you can't go wrong with Taran Tactical.

  6. The Best Sig Sauer MPX Mag Extension You Can Buy

    Posted by Robert W Olsen on Mar 14th 2019

    I bought another companies' MPX extension because I thought it was less expensive, but that company made you paid extra for the spring, so it ended up costing more. Taran's are less expensive and a better design. Stay with Taran Tactical. He makes the best.

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