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+3 Magazine Extension for SCCY CPX-3 and CPX-4 Pistols

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SCCY CPX-3 and CPX-4 +3 Mag Extension

You've asked and now we're answering. Introducing our newest +3 magazine extension for the SCCY 380 pistol series. Made from carbon fiber reinforced nylon, this economical mag extension is no slouch in the engineering department, with the material being one and half times stronger than aluminum. Not only does the extension add 3 rounds to your factory 10 round magazine, it also makes a nice space for your pinky to rest for a better grip. Get yours today!

Includes a set screw on the top rear for retention. Tighten the set screw clockwise until flush with the extension shoulder to allow clearance for the mag tube shoulder, install the extension, then turn the set screw counter-clockwise a turn or two to block the mag tube shoulder to keep the extension from sliding forward. Use a .050 allen wrench to make the adjustments.

*** Need of an .050 Allen Wrench? Please select it from the drop-down before adding the Extension to the cart. If you are ordering more than 1 Extension and need only 1 Allen Wrench please add 1 with an ".050 Allen Wrench" to the cart and then close the pop up to return to the listing and select "No Allen Wrench" and add the additional quantity of Mag Extensions needed to the cart. Tools are non-refundable. ***

*** A 20% restocking fee will be applied on returned magazine extensions that have been installed. Non-installed parts will receive a full refund (minus shipping). ***

Fits SCCY CPX-3 and CPX-4 380 Factory Magazines.

As always, proudly made right here in the USA.

Specifications

Parent SKU
GP-ME-CPX34
Brand
Galloway Precision
Country of Origin
USA
Assembly
Fletcher NC USA
Item Condition
Brand new in original packaging
Made from
Carbon Fiber Reinforced Nylon

- Weight
  0.3233 oz
- SKU
  GP-ME-CPX34
Product class
Galloway Precision Product
Add an .050 Allen Wrench
No Allen Wrench, .050 Allen Wrench
Manufacturers
- Manufacturer
  Galloway Precision

Product questions

Tom

Dec 7, 2021, 10:42

I don't get the extra piece that comes with the extension, Does it replace the original spring /plate holder; A simple drawing would have helped. Thanks

Administrator

Dec 7, 2021, 10:55

It replaces the stock spring plate so the spring will stack out nice and straight as it compresses.
errol lee

Aug 18, 2021, 09:07

what is the other thing that you show with this magazine extension? is it the follower on top of the spring?? I see it but don't see what it is for, you don't mention it in your instructions...

Administrator

Aug 19, 2021, 08:51

It is a floor plate designed to stack the spring inline rather than letting it walk around the inside of the mag and extension. Prevents it from hanging up on itself as it stacks basically.
Adrian Caster

Aug 16, 2021, 18:36

Is the spring supposed to show at the bottom once the magazine is fully loaded

Administrator

Aug 17, 2021, 09:17

Clearance for the follower is needed so the extension is designed the way it is to allow for the correct stroke and clearance.
Jonathan west

May 18, 2021, 22:25

I really want this i have the sccy cpx 3 and ive been looking for something that adds more capacity, so with this i can load my magazines to 13 safely, will this not mess up my magazines nor gun, and last please is there any youtube video on how to install or can you please explain i have no idea what i would be doing really want to order one

Administrator

May 19, 2021, 10:19

It is only for the 380 mags, the 9mm mags shoulders fold the wrong way and do not allow for an extension that adds capacity as a result. We wouldn't offer a product if it messed up a weapon.

The install is pretty straight forward, remove the stock floor plate via the owners manual info. Compress the spring with the spring plate, install the new extension and adjust the set screw to prevent the extension from moving when on an empty magazine.
Brad Cozart

Mar 25, 2021, 21:46

Since 380 is just 1mm shorter then a 9mm will your +3 magazine extension work on mags for a cpx-2?
Thank you

Administrator

Mar 26, 2021, 09:07

No, the 9mm shoulders are folded in on the 9mm mags so an extension that adds capacity is not possible or we would offer it. Just for reference 9x19mm ammo is 1.150 OAL while 380 acp is .975 all in inches. That is 29.20 mm and 24.765 mm so .380 ACP is about 4.5 mm shorter than standard 9x19

Customer reviews

Average rating:

5.00 (Votes: 1)

Rating of votes (1)

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David Brass

Sep 10, 2024, 12:27

Extensions fit perfectly and are well made. Maintains slide lock on last round, Nice upgrade.

*100% money back (less shipping) on all our products is offered by us against failure of our components or just displeasure our products did not meet your expectations or end needs within the first 30 days. Buy and don't like it, we will refund your purchase price minus shipping upon return, within 30 days of purchase of the complete unmodified parts in question, with the exception of Tool Kits, Tools, Installation Kits, and Closeout products which All Sales are Final. A 20% restocking fee will be applied to returned Triggers, Trigger Kits, Optic Mount Plates, and Guide Rods that have been installed and damaged. Non-installed/non-damaged parts will receive a full refund. If you choose to modify any of our parts without instruction from a Galloway Precision tech, the parts are not eligible for refund or replacement. Refunds are issued upon return within 2 business days back to the original credit card used to purchase the product. We may apply signature required to reduce lost orders for totals over 100.00 or replacement parts or apt addresses.

Despite every effort to provide accurate images of each product’s color and design, actual colors and design may vary slightly, due to different device screen settings, the lighting in the installation location, slight differences in product finishes over time and other factors. Galloway Precision will not accept responsibility for any color or design differences that are not factory faults. When purchasing from Galloway Precision, you agree to accept the small risk that there will be a slight variation between the actual color and design, and the representation on our website. In addition, please be aware that colors and textured finishes often vary between batches; for example slightly different shades of ‘Red’, different degrees of shininess, and different looks and feel for ‘metal/Printed products’ material.