S10 +5 Pre-Installed Magazine Extension

A Shield Arms S10 magazine with the +5 extension pre-installed: 15 rounds, ready to load. For Shield grip-chopped Glock® 43X and 48 pistols. Requires a steel mag catch. Made in the USA.
SKU: S10-ME-5INS
*
  • Not available
  • Not available
  • Not available
  • Not available
  • Not available
  • Not available
Availability: In stock
$68.95
i h
Buy now, pay later Available at checkout on orders over $150
Compatibility

Fits Shield Arms Grip-Chopped Pistols Only

S10 magazines fit only Glock® 43X and 48 pistols grip-chopped by Shield Arms. They won't fit a factory frame or another shop's grip chop. Need a pistol that takes it? See the S10 Grip Chop Service or the complete Custom S10 Series Glock® 43X MOS.

What Is the S10 +5 Pre-Installed Magazine?

It's a Shield Arms S10 magazine with our +5 extension already installed, so it holds 15 rounds and arrives ready to load. It runs in Shield Arms grip-chopped Glock® 43X and 48 pistols with a steel mag catch, and comes with a lifetime warranty and Spring for Life. Made in the USA.

  • Capacity: 15 rounds of 9mm
  • Fits: Shield Arms grip-chopped Glock® 43X and 48
  • In the box: S10 magazine, +5 extension installed, 10-coil power spring
  • Requires: A Shield Arms steel mag catch
S10 +5 Pre-Installed

Fifteen Rounds, Ready to Load

The S10 sits flush at 10 for deep concealment. This version comes with the +5 extension already fitted, giving you a 15-round spare for your pouch, or a carry mag for days when concealment matters less. Nothing to install: load it and go.

Features

What You're Getting

  • Installed and Sprung

    The +5 extension comes already fitted to the S10, with a 10-coil power spring installed.

  • Easy-Access Floor Plate

    Reach the spring and follower for cleaning or service without taking the extension off the magazine.

  • Index Cuts

    Cuts on the extension body give you a better grip when you draw the magazine from a pouch.

  • Billet 6061 Aluminum

    The extension is machined from billet aluminum with a Type II anodized finish. Made in the USA.

S10 Family

Flush at 10. Extend When You Want More.

Pre-installed magazines arrive ready to load. Want something shorter? The S10 +2 Pre-Installed holds 12.

A grip-chopped pistol also runs S15 and S20 magazines, up to 25 rounds. See every option.

Required

Run It With a Steel Mag Catch

S10 magazines are steel, and the factory polymer catch isn't compatible with them. Install our Standard S15 Mag Catch or Premium S15 Steel Mag Catch, both made in the USA. Another manufacturer's catch, or a first-generation aluminum catch, may cause reliability issues. Pistols converted by our Grip Chop Service come back with a steel catch already installed.

Need a Grip-Chopped Pistol?

The S10 Grip Chop Service

Send us your factory Glock® 43X or 48. We CNC-trim the grip, install an S10 magwell and a standard steel mag catch, test-fire the pistol, and ship it back with two S10 magazines. The converted pistol runs S10, S15 and S20 magazines. OEM Glock® 43X and 48 frames only; we recommend a factory Glock® slide stop for the best S10 function.

See the Grip Chop Service or skip the shipping with a complete Custom S10 Series Glock® 43X MOS.

Specifications

Capacity 15 rounds, 9mm (S10 plus 5)
Compatible pistols Shield Arms grip-chopped Glock® 43X and 48 only
Magazine Shield Arms S10, steel body
Extension +5, pre-installed
Spring 10-coil power spring, installed
Extension material Billet 6061 aluminum, Type II anodized
Floor plate Easy access, no need to remove the extension for cleaning
Grip Index cuts for drawing from a pouch
Mag catch Shield Arms steel catch required
Made in USA
Warranty Lifetime warranty plus Spring for Life
Questions

S10 +5 Pre-Installed FAQ

Will it fit my factory Glock® 43X or 48?

No. S10 magazines fit only pistols grip-chopped by Shield Arms. Our S10 Grip Chop Service converts the pistol you own.

Will it work in another shop's grip chop?

No. S10 products are only compatible with Shield Arms grip-chopped Glock® 43X and 48 pistols.

Pre-installed or extension only?

Pre-installed gets you a complete 15-round magazine. Already own an S10? The S10 +5 Extension upgrades it.

Do I need a steel mag catch?

Yes. The factory polymer catch isn't compatible with steel S10 magazines. Use a Shield Arms Standard or Premium steel catch.

Do I have to remove the extension to clean it?

No. The easy-access floor plate opens to the spring and follower with the extension still on the magazine.

What's covered?

A lifetime warranty against defects, plus free replacement springs for life through Spring for Life.

ODA Green

Used on: magazine extensions, magwells

ODA's (Operational Detachment Alpha) are the boots on the ground operational teams of a Special Forces Group. This color began as a special run for a deployed ODA. In continued support we have decided to continue the color as a standard offering and donate a portion of the proceeds to The Green Beret Foundation. Finish is anodized in green.

QPQ Nitrocarburizing Surface Treatment

Used on: magazines, barrels, slides

QPQ Nitrocarburizing is a type of surface treatment used to enhance the durability and corrosion resistance of metal parts. The process involves heating the metal in a controlled environment, where nitrogen and carbon are introduced to the surface of the metal. This forms a thin layer of a hard compound called "nitrides," which increase the surface hardness of the metal.

During the QPQ Nitrocarburizing process, the metal is immersed in a special salt bath and heated to high temperatures. The salt bath contains a mixture of chemicals that release nitrogen and carbon, which penetrate the surface of the metal. The process is carefully controlled to ensure that the nitrogen and carbon penetrate to a specific depth, creating a uniform layer of nitrides on the metal's surface.

The resulting nitride layer provides many benefits to the metal parts, including increased hardness, wear resistance, and corrosion resistance. This treatment helps to increase the lifespan and durability of metal parts, making them more reliable and long-lasting.

Any “scuffing” you see in the surface finish is completely normal, and will not affect the durability or corrosion resistance of the steel.

Electroless Nickel Plating

Used on: magazines

Silver electroless plating offers superior electrical conductivity and corrosion protection with excellent deposit uniformity and adhesion properties. This bright, reflective finish provides outstanding solderability and contact resistance while maintaining the consistent thickness and coverage that electroless plating processes are known for. Black electroless nickel plating provides these same exceptional deposit properties - including lubricity, hardness, and corrosion resistance - but with a fully conductive and uniform black surface finish that combines superior performance with an attractive dark appearance.

This item is controlled for export by the International Traffic in Arms Regulations (ITAR). Please check your state and local laws regarding magazine capacity restrictions.

Freedom Restricted States

If you live in a state that restricts magazine capacity we cannot ship to you unless you are law enforcement or otherwise exempt. If you are exempt from your state's ban please send us a copy of your documentation or official email to [email protected]. Please include your order number.

If you purchase from a ban state and you are NOT exempt, we will cancel your order and charge you a 5% cancellation fee.

Notice

GLOCK® is a federally registered trademark of GLOCK, Inc. and is one of many trademarks owned by GLOCK, Inc. and GLOCK Ges.m.b.H.  Neither Shield Arms nor this site are affiliated in any manner with, or otherwise endorsed by GLOCK, Inc. or GLOCK Ges.m.b.H.  The use of "GLOCK" on this and associated pages on our website is merely to advertise the sale of GLOCK® pistols, parts, or components. For additional genuine GLOCK, Inc. and GLOCK Ges.m.b.H products and parts, visit www.glock.com.

Installation Help

Not sure how to install this product? Our step-by-step guides and video walkthroughs make it simple.

View Installation Guides →
Customers who bought this item also bought
Premium S15 Steel Mag Catch for Glock® 43X / 48 - Nitride

Premium S15 Steel Mag Catch for Glock 43X/48

Premium hand-specific steel mag catch for Shield Arms S15 magazines. Enhanced ergonomics with extended knurling, beveled edges for smooth reloads, and increased magazine engagement. Not compatible with OEM magazines. Select left or right hand. Made in USA, lifetime warranty.
$36.95
S10 +2 Pre-Installed Magazine Extension - Black

S10 +2 Pre-Installed Magazine Extension

A Shield Arms S10 magazine with the +2 extension pre-installed: 12 rounds, ready to load. For Shield grip-chopped Glock® 43X and 48 pistols. Requires a steel mag catch. Made in the USA.
$68.95
SA Premium Magwell - Glock 43X/48 - Black

Premium Magwell for Glock 43X / 48

Our widest magwell for the Glock 43X and 48, CNC-machined from 6061-T6 aluminum in Bigfork, Montana. Drop-in install with included hardware; runs S15, S20 and factory mags.
$79.95
S10 Magazine - 10 Round Magazine for Glock® 43X / 48

S10 Magazine for Modified Glock 43X / 48

Patented 10-round steel magazine that sits flush in a Shield Arms grip-chopped Glock® 43X or 48. Extends to 12 or 15 rounds with S10 extensions. Requires a steel mag catch. Made in the USA.
$35.95
S15 Magazine GEN 3 With Grip Chop Sleeve - Nitrocarb

S15 Magazine GEN 3 With Grip Chop Sleeve

Our patented 15-round S15 Gen 3 steel magazine, packaged with a Grip Chop Sleeve for a better grip on Shield Arms grip-chopped Glock® 43X and 48 pistols. Requires a steel mag catch. Made in the USA.
$49.95

FREE SHIPPING FOR ORDERS OVER $100!