+4 Base Pad For Glock 21/41 .45 Cal OEM Magazines

$42.99 - $43.99
(72 reviews)
Current Stock:
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*Will not work with 10mm ammo. Our extensions are designed to work specifically with their intended magazine, the slightest off-angle may cause failure to feed or other malfunctions.*

GLOCK .45 +4

*Not for sale to California residents. A courtesy email will be sent to CA residents who place an order for product that has the capability of taking a magazine past ten rounds. Ultimately a refund will be issued. CA residents can only buy +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.

The pin set screws are set with Loctite® at the specific tension we recommend, and will generally never need an adjustment. Tightening the base pad screw is not recommended and may be difficult because the screw is set with Loctite®; trying to force the set screw to turn could result in stripping the screw. We do not warranty base pads for stripped heads on set screws or pins lost in result of tampering with the set screw.

*Remove the metal insert at the bottom before installation*

*Will not function with early generation Glock mags that have u-notch cut feed lips.*


- +10% stronger spring included.

- Overall weight 1.7oz.

- Length, 1 1/2 inch front side, 3/4 inch on back side.

- Patented proven push pin design.

- No specialty tools or devices required to disassemble.

- One piece design, no extra parts to possibly lose during disassembly.

- Fits the USPSA 140mm gauge.

- Ideal for full size magazines.

- Holds 17+1 rounds of .45ACP.

- 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 GLOCK base pad works on GLOCK models 21/41. This TTI base pad will add 4 extra rounds of .45 ACP to the magazine. This base pad does adds a little extra weight to the magazine which helps the empty mag drop free easier for faster reloads. This TTI GLOCK 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.


  • 5
    +4 for my G21 gen4

    Posted by Frank Crisp on Sep 14th 2021

    Great product! The flat black is sick!

  • 5
    17 Rounds of .45 Can't be Beat!

    Posted by James Hardee on Jul 29th 2021

    I have six of these now I think and they are great, especially when I have my silencer mounted as it balances the gun well (of course it changes as the mag empties, but it matters less while you are actively shooting). I keep buying them because they work, period.

  • 5
    Great Addition to Carry 41

    Posted by Fernando Najera on Jul 5th 2021

    The base pad is extremely well constructed and makes a wonderful addition to my G41 for daily carry. Being able to load 17 rounds of 2000fps 45acp instead of only 13 is an option I didn't know I had before these base pads and the peace of mind they bring is incalculable. I do recommend you read the instructions carefully the first time installing them because my stubbornness prevailed the first time and I nearly lost a nail. However after some careful reviewing of included instructions the nest 6 were a breeze to install.

  • 5
    Works Great

    Posted by Michael Herring on Jun 23rd 2021

    Well made comes with a very strong spring. TTI is the best.

  • 5
    Great +4 base pad

    Posted by Alex Samayoa on Jun 18th 2021

    Great product. Does what it's supposed to. Looks awesome.

  • 5
    Follow the instructions

    Posted by Rob Mathis on May 18th 2021

    Absolutely, hands down worth every cent. Just read the instructions. Install new spring and base pad and load half way and let sit over night then load the rest. Would definitely buy again.

  • 5
    Always the Best!

    Posted by Jim on Mar 22nd 2021

    These have a great fit and look awesome adding additional capacity. Using them in USPSA they are being dropped all the time and as tough as they are looking good.

  • 5
    Clever idea

    Posted by Ryan on Feb 27th 2021

    -Works with Suarez magwell to make a seamless fit and finish. -No more waiting for the mag to eject. - new mag springs are cheap maintenance on all mags. -extra weight is compensated by using lighter ammo( liberty munitions) but otherwise utilized to mitigate a bit of recoil. -The extension (w/ or w/o griptape) also allows for an extra grip on the mag for better reload. - gets them out of the belt much quicker.

  • 5
    Simply the best.

    Posted by Nick on Feb 18th 2021

    If you're wanting to run anything but the stock base pads, this is the only solution. Even if you aren't looking for more capacity, the spring, positive drop, and balance in the hand are nice upgrades in themselves. Smaller pads for CCW are great for that extra finger on the gun, and for those of us in the 45acp world I wish this worked with 9 round Glock 30/30s mags, but unfortunately they do not. Instead I run a Pearce pad on the 9 round for max concealment and grip, then one of these on a full size mag for the reload in case things get spicy.