Custom S10 Series Glock 43X MOS

A factory Glock® 43X MOS, CNC grip-chopped by Shield Arms so the 10-round S10 magazine sits flush. Ships to your FFL with two S10 magazines, S10 magwell and steel mag catch. Runs S-Series magazines up to 25 rounds.
SKU: G43XMOS-S10
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$649.95
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Buy now, pay later Available at checkout on orders over $150

What Is the Custom S10 Series Glock® 43X MOS?

It's a factory Glock® 43X MOS that Shield Arms converts for deep concealment. We CNC-chop the grip so the patented 10-round S10 magazine sits flush, install an S10 magwell and a black nitride steel mag catch, test-fire the pistol, and ship it to your FFL with two S10 magazines. The same pistol still runs S15 and S20 magazines, up to 25 rounds.

  • Base pistol: Factory Glock® 43X MOS, 9mm
  • Ships with: (2) S10 magazines, S10 magwell, steel mag catch
  • Lead time: Currently 3–4 weeks
  • Transfer: Ships to your FFL
Deep Concealment

A 43X MOS With a Shorter Grip

The grip is the part of a carry pistol that prints. The Custom S10 shortens it, and the S10 magazine is sized to sit flush in that shorter grip, so you carry 10 rounds with nothing hanging out the bottom. You keep everything that makes the 43X MOS a good carry gun: the slim frame, the optics-ready slide and the factory Glock® internals.

Already own a 43X or 48? Send it to us for the S10 Grip Chop Service instead. Want a complete pistol, built and shipped to your dealer? This is it.

How It's Built

Built to Order in Bigfork

  1. 1

    Start With a 43X MOS

    Every build begins with a factory Glock® 43X MOS: optics-ready slide, slim mounting rail, 9mm.

  2. 2

    CNC Grip Chop

    We machine the grip frame to the S10 length, then fit the S10 magwell and a steel mag catch, right or left hand.

  3. 3

    Your Package and Finish

    Pro-Carry and Elite-Carry upgrades are installed, and any Cerakote is applied in-house.

  4. 4

    Test-Fired, Shipped to Your FFL

    Every pistol is test-fired, then ships to your dealer with two S10 magazines.

Magazine Compatibility

One Pistol, 10 to 25 Rounds

The S10 sits flush at 10. Every S-Series magazine and extension still fits the chopped grip, so you choose how many rounds to carry each day.

* S15 options run with the S15 Magazine Grip Chop Sleeve.

S10Included   10 S10 +2Pre-installed    12 S10 +5 / S15*Two options    15 S15 +2*Pre-installed    17 S15 +5* / S20Two options    20 S15 +10*Pre-installed    25   S10 flush capacity   Added rounds
Packages

Choose Your Package

Every package is a complete Custom S10 Series 43X MOS with two S10 magazines, the S10 magwell and a black nitride steel mag catch. Pro-Carry adds night sights. Elite-Carry adds a threaded barrel and a trigger upgrade.

Included Enhanced Pro-Carry Elite-Carry
Glock® 43X MOS with CNC grip chop ✓ ✓ ✓
(2) S10 magazines ✓ ✓ ✓
S10 magwell ✓ ✓ ✓
Black nitride steel mag catch ✓ ✓ ✓
AmeriGlo I-Dot night sights — ✓ ✓
Black nitride threaded barrel — — ✓
McNally trigger — — ✓

Finish Options

The standard finish is Glock's factory nDLC. Or have the pistol Cerakoted in-house in one of our patterns. Each is applied by hand, so no two pistols look alike.

Factory nDLC (standard) Graphite Black Fallout Montana Mud Pineland

Compare

Custom S10 vs. a Factory Glock® 43X MOS

Feature Custom S10 Series Factory 43X MOS
Grip length Shortened for the S10 Factory length
Mag catch Steel, installed Polymer
Magwell S10 magwell, installed None
Shield Arms magazines S10, S20, and S15 with the sleeve; up to 25 rounds S15 and S20 with a steel catch
Options Three packages, in-house Cerakote Factory configuration
Know Before You Order

A Permanently Modified Firearm

  • The grip chop is permanent; the frame can't be restored to factory configuration.
  • The modification may void the factory Glock® warranty.
  • As a complete firearm, it ships to a licensed FFL dealer for transfer.
  • Don't run factory Glock® magazines in it. Use S-Series magazines.
  • Built to order; lead time is currently 3–4 weeks.
  • You're responsible for following all federal, state and local firearm and magazine laws.

Specifications

Base pistol Factory Glock® 43X MOS
Caliber 9x19mm (9mm Luger)
Included magazines (2) S10, 10 rounds each, flush
Also runs S10 +2 and +5; S20; S15, S15 +2, +5 and +10 with the S15 Grip Chop Sleeve
Barrel length 3.41 in (threaded barrel on Elite-Carry)
Overall length 6.50 in
Width 1.10 in
Optics MOS optics-ready slide
Rail Glock® Slim Mounting Rail
Sights Factory Glock® (AmeriGlo I-Dot on Pro-Carry and Elite-Carry)
Trigger Factory Glock® Safe Action (McNally on Elite-Carry)
Mag catch Black nitride standard steel, right or left hand
Magwell Shield Arms S10 magwell
Finish Factory nDLC, or Graphite Black, Fallout, Montana Mud or Pineland Cerakote
Testing Test-fired before shipping
Lead time Currently 3–4 weeks, built to order
Transfer Ships to your FFL dealer
Warranty Lifetime warranty on Shield Arms components; Spring for Life on the S10 magazines
Modified in Bigfork, Montana, USA
Questions

Custom S10 Series FAQ

How is it different from a factory Glock® 43X MOS?

The grip is CNC-shortened so the 10-round S10 magazine sits flush, and we install an S10 magwell and a steel mag catch. The slide, barrel and internals are factory Glock® unless your package upgrades them.

Can you convert the 43X I already own?

Yes. Our S10 Grip Chop Service converts factory Glock® 43X and 48 frames you send in, with the same packages.

Can I run S15 and S20 magazines?

Yes. The S20 runs as-is, and S15 magazines and extensions run with the S15 Grip Chop Sleeve, up to 25 rounds.

Can I use factory Glock® magazines?

No. Factory Glock® magazines shouldn't be used in a grip-chopped pistol. Run S-Series magazines.

How long will it take?

Each pistol is built to order, and lead time is currently 3–4 weeks. It's test-fired, then shipped to your FFL dealer.

Do I need an FFL?

Yes. It's a complete firearm, so you'll provide your FFL dealer's information at checkout and complete the transfer there. See how FFL transfers work.

Can I mount a red dot?

Yes. The 43X MOS slide is optics-ready, so you can mount a compatible micro red dot after delivery.

Can the grip chop be undone?

No. It's permanent, and it may void the factory Glock® warranty. Shield Arms components, including the S10 magazines, magwell and mag catch, carry our lifetime warranty.

Related

Built Around the S10

S10 Magazine Spare 10-round mags S10 +2 Pre-Installed 12 rounds, ready to load S10 +5 Pre-Installed 15 rounds, ready to load S15 with Grip Chop Sleeve 15 rounds for a chopped grip S20 Magazine 20 rounds, one piece S10 Grip Chop Service Convert a 43X or 48 you own

Learn more on the S10 system page, or watch the S10 Shop Talk video.

Firearm Transfers

Email your preferred FFL to [email protected]. Include:

  • Your name
  • Order number
  • FFL name and address
  • Copy of the FFL (if available)
Important — Please Read

This is a serialized item considered a firearm by the BATFE. This item must ship to a Federal Firearms License (FFL) holder. All BATFE, GCA & NFA rules apply.

You are responsible for checking with your local FFL to confirm this firearm is legal in your state and that your FFL will accept it on your behalf. Shield Arms is not responsible for shipping or administrative charges from packages refused by the FFL selected at checkout.

This item is controlled for export under the International Traffic in Arms Regulations (ITAR).

Products specifications
Firearms Manufacturer Glock
Firearms Model Glock 43X/48
Installation Help

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

View Installation Guides →
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