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  • Glock Firing Pin Safety Upgrade with Firing Pin Block Spring
  • Firing Pin Safety Upgrade and Firing Pin Block Spring for Glock
  • OEM Firing Pin Safety Comparison Graphic
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Polished Stainless Steel Firing Pin Safety for Glock Gen 1–4 | M*CARBO

review-star review-star review-star review-star review-star
(4.80) 5 reviews
Price: $15.99
in-stock-product Availability: Discontinued

Retail: Retail: $20.00

You Save: $4.01 (20.1%)


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Product Information

About This Item

Compatible with Glock Gen 1–4 small-frame pistols (9mm, .40 S&W, .357 SIG & .45 GAP). Not compatible with G42 or G43. Verify model compatibility prior to installation.

  • Experience a smoother trigger action with a fully polished firing pin safety and precision mating surface.
  • The enhanced mating surface design combined with the M*CARBO custom lighter firing pin block spring delivers an approximate 15% reduction in trigger pull weight.
  • CNC-machined from hardened stainless steel for improved wear resistance and long service life.
  • Elevate accuracy and overall pistol performance with this internal upgrade.
  • For an even shorter length of pull, consider pairing with the M*CARBO Gen 3–4 Flat Trigger.
  • Proudly made in the USA — a top choice among M*CARBO's Glock-focused upgrades.
  • Do you want us to install the parts for you?
  • Protected by the M*CARBO 100% Lifetime Guarantee
  • Fast Same Day Shipping!
  • Made in the USA!

WHAT'S IN THE KIT:

  • 1 — Polished Firing Pin Safety (stainless steel)
  • 1 — Custom lighter firing pin block spring

Compatibility Chart

DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.

Description

Polished Firing Pin Safety for Glock Gen 1–4

Compatible with Glock Gen 1–4 small-frame pistols (9mm, .40 S&W, .357 SIG & .45 GAP). Not compatible with G42 or G43. Verify model compatibility prior to installation.

Upgrade your pistol with the M*CARBO polished stainless-steel firing pin safety — engineered with an enhanced mating surface that, when paired with the M*CARBO custom lighter firing pin block spring, delivers approximately a 15% reduction in trigger pull weight for a smoother, more consistent action.

OEM firing pin safety comparison

  • Precision-polished, hardened stainless-steel construction for reduced friction and superior wear resistance.
  • Approx. 15% lighter than OEM when used with M*CARBO’s lighter firing pin block spring, producing a smoother, more predictable trigger pull.
  • Improved mating-surface geometry and tighter tolerances for consistent sear engagement and release.
  • Drop-in replacement for Gen 1–4 firing pin safety assemblies — direct fit for compatible frames.
  • Works well with other M*CARBO trigger enhancements (channel liners, spring kits, flat triggers) to fine-tune trigger feel.
  • Made in the USA and tested by M*CARBO for reliability under normal use.

Suggestion: For an even shorter length of pull, pair this upgrade with the M*CARBO Gen 3–4 Flat Trigger.

WHAT'S IN THE KIT:

  • 1 — Polished Stainless Steel Firing Pin Safety
  • 1 — Custom Lighter Firing Pin Block Spring
  • 1 — Installation / Instructions Sheet

*Verify model compatibility before installation. Professional installation recommended if you are not experienced with internal parts.*

DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.

M*CARBO No Hassle 100% Lifetime Guarantee:

The Polished Stainless Steel Firing Pin Safety for Glock Gen 1–4 | M*CARBO is protected by the M*CARBO No Hassle 100% Lifetime Guarantee.

Drop Tested and Approved:

Polished Stainless Steel Firing Pin Safety for Glock Gen 1–4 | M*CARBO is drop Tested according to SAAMI Standard Z299.5 rating (12" & 48").

Tested and Approved:

The Polished Stainless Steel Firing Pin Safety for Glock Gen 1–4 | M*CARBO has been tested repeatedly to ensure reliable operation and safety.

Veteran Owned and Operated Business:

American made Polished Stainless Steel Firing Pin Safety for Glock Gen 1–4 | M*CARBO is designed and manufactured by Combat Veterans. We will donate a portion of your purchase to the Military Foundations we humbly support.

ATTENTION:

You must be 18 yrs of age to purchase. We advise that all parts purchased from our inventory be installed and inspected by a qualified gunsmith. Modifying your weapon may be prohibited in your state. Do not modify your sear or hammer engagement surfaces, with or without the Polished Stainless Steel Firing Pin Safety for Glock Gen 1–4 | M*CARBO. Before installing please be sure to check all local state and federal laws. By installing this part you agree to take full responsibility for any and all legal, health and warranty consequences that may be incurred.

Reviews
Very nice
review-star review-star review-star review-star review-star
The original old one was pretty worn out and dirty. It was time to change for the better.
Great product.
review-star review-star review-star review-star review-star
Not the first item I have bought. Very satisfied with the quality of the product. I will continue to purchase items from MCarbo.
Works as advertised
review-star review-star review-star review-star review-star
Made a big difference in a stock Glock 19 just by dropping it in. The spring is lighter weight, but hasn't effected anything in a negative manner. Will be getting these for the rest of our Gen 3 Glocks.
New Firing Pin Safety
review-star review-star review-star review-star review-star
Installation was a snap.I don't think it reduced trigger pull as I had previously polished OEM firing pin safety..I installed in all three of my Glocks and am pleased.
For use in polymer 80%
review-star review-star review-star review-star review-star
No doubt you've run into slide drag issues on your polymer 80. This plunger corrects 2 of the problems.
You can find a YouTube video on polymer slide drag, that will solve the other 4 issue.
The only other part you'll need to buy is the 20# recoil spring
Questions & Answers
0 0
Question:
Do you offer the polished firing pin safety for Gen5 Glocks?
June April 26, 2023 8:47 PM
Answers
Unfortunately it is only for GEN 1-4 at the moment. We may offer a GEN 5 version in the future if their is enough demand for it.
Answered by
M*CARBO-Tech / April 28, 2023 11:33 AM
0 0
Question:
Is this user installable? Or does it require a gunsmith/armorer?
April 26, 2023 4:26 PM
Answers
If you are capable of disassembling your slide completely you can do it.
Answered by
Alan Dodson / April 29, 2023 8:17 AM

About This Item

Compatible with Glock Gen 1–4 small-frame pistols (9mm, .40 S&W, .357 SIG & .45 GAP). Not compatible with G42 or G43. Verify model compatibility prior to installation.

  • Experience a smoother trigger action with a fully polished firing pin safety and precision mating surface.
  • The enhanced mating surface design combined with the M*CARBO custom lighter firing pin block spring delivers an approximate 15% reduction in trigger pull weight.
  • CNC-machined from hardened stainless steel for improved wear resistance and long service life.
  • Elevate accuracy and overall pistol performance with this internal upgrade.
  • For an even shorter length of pull, consider pairing with the M*CARBO Gen 3–4 Flat Trigger.
  • Proudly made in the USA — a top choice among M*CARBO's Glock-focused upgrades.
  • Do you want us to install the parts for you?
  • Protected by the M*CARBO 100% Lifetime Guarantee
  • Fast Same Day Shipping!
  • Made in the USA!

WHAT'S IN THE KIT:

  • 1 — Polished Firing Pin Safety (stainless steel)
  • 1 — Custom lighter firing pin block spring

Compatibility Chart

DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.

Polished Firing Pin Safety for Glock Gen 1–4

Compatible with Glock Gen 1–4 small-frame pistols (9mm, .40 S&W, .357 SIG & .45 GAP). Not compatible with G42 or G43. Verify model compatibility prior to installation.

Upgrade your pistol with the M*CARBO polished stainless-steel firing pin safety — engineered with an enhanced mating surface that, when paired with the M*CARBO custom lighter firing pin block spring, delivers approximately a 15% reduction in trigger pull weight for a smoother, more consistent action.

OEM firing pin safety comparison

  • Precision-polished, hardened stainless-steel construction for reduced friction and superior wear resistance.
  • Approx. 15% lighter than OEM when used with M*CARBO’s lighter firing pin block spring, producing a smoother, more predictable trigger pull.
  • Improved mating-surface geometry and tighter tolerances for consistent sear engagement and release.
  • Drop-in replacement for Gen 1–4 firing pin safety assemblies — direct fit for compatible frames.
  • Works well with other M*CARBO trigger enhancements (channel liners, spring kits, flat triggers) to fine-tune trigger feel.
  • Made in the USA and tested by M*CARBO for reliability under normal use.

Suggestion: For an even shorter length of pull, pair this upgrade with the M*CARBO Gen 3–4 Flat Trigger.

WHAT'S IN THE KIT:

  • 1 — Polished Stainless Steel Firing Pin Safety
  • 1 — Custom Lighter Firing Pin Block Spring
  • 1 — Installation / Instructions Sheet

*Verify model compatibility before installation. Professional installation recommended if you are not experienced with internal parts.*

DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.

M*CARBO No Hassle 100% Lifetime Guarantee:

The Polished Stainless Steel Firing Pin Safety for Glock Gen 1–4 | M*CARBO is protected by the M*CARBO No Hassle 100% Lifetime Guarantee.

Drop Tested and Approved:

Polished Stainless Steel Firing Pin Safety for Glock Gen 1–4 | M*CARBO is drop Tested according to SAAMI Standard Z299.5 rating (12" & 48").

Tested and Approved:

The Polished Stainless Steel Firing Pin Safety for Glock Gen 1–4 | M*CARBO has been tested repeatedly to ensure reliable operation and safety.

Veteran Owned and Operated Business:

American made Polished Stainless Steel Firing Pin Safety for Glock Gen 1–4 | M*CARBO is designed and manufactured by Combat Veterans. We will donate a portion of your purchase to the Military Foundations we humbly support.

ATTENTION:

You must be 18 yrs of age to purchase. We advise that all parts purchased from our inventory be installed and inspected by a qualified gunsmith. Modifying your weapon may be prohibited in your state. Do not modify your sear or hammer engagement surfaces, with or without the Polished Stainless Steel Firing Pin Safety for Glock Gen 1–4 | M*CARBO. Before installing please be sure to check all local state and federal laws. By installing this part you agree to take full responsibility for any and all legal, health and warranty consequences that may be incurred.

Product Reviews (5)
review-star review-star review-star review-star review-star
4.80
Very nice
review-star review-star review-star review-star review-star
The original old one was pretty worn out and dirty. It was time to change for the better.
Great product.
review-star review-star review-star review-star review-star
Not the first item I have bought. Very satisfied with the quality of the product. I will continue to purchase items from MCarbo.
Works as advertised
review-star review-star review-star review-star review-star
Made a big difference in a stock Glock 19 just by dropping it in. The spring is lighter weight, but hasn't effected anything in a negative manner. Will be getting these for the rest of our Gen 3 Glocks.
New Firing Pin Safety
review-star review-star review-star review-star review-star
Installation was a snap.I don't think it reduced trigger pull as I had previously polished OEM firing pin safety..I installed in all three of my Glocks and am pleased.
For use in polymer 80%
review-star review-star review-star review-star review-star
No doubt you've run into slide drag issues on your polymer 80. This plunger corrects 2 of the problems.
You can find a YouTube video on polymer slide drag, that will solve the other 4 issue.
The only other part you'll need to buy is the 20# recoil spring

Questions & Answers

2 Questions

0 0
Question:
Do you offer the polished firing pin safety for Gen5 Glocks?
June April 26, 2023 8:47 PM
Answers
0 0
Unfortunately it is only for GEN 1-4 at the moment. We may offer a GEN 5 version in the future if their is enough demand for it.
Answered by
M*CARBO-Tech / April 28, 2023 11:33 AM
0 0
Question:
Is this user installable? Or does it require a gunsmith/armorer?
April 26, 2023 4:26 PM
Answers
0 0
If you are capable of disassembling your slide completely you can do it.
Answered by
Alan Dodson / April 29, 2023 8:17 AM