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Glock Flatback/Invincible Glock Switch – Semi/Full Auto M...
Home / Glock Switches

Glock Flatback/Invincible Glock Switch – Semi/Full Auto M…

$260.00

Glock Flatback/Invincible Glock Switch – Semi/Full Auto M… — A durable, CNC-machined selector switch for compatible Glock models. Hardened steel alloy construction. Ships from Grand Forks, ND.

Category: Glock Switches
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Ever find yourself at the range, thinking about how to get the most out of your platform for a specific type of training? If you’re looking for a reliable, well-made selector switch for your Glock, you’ve come to the right place.

Imbertsmithersarms is a Grand Forks, ND-based retailer specializing in firearms parts and accessories for hunters and shooters. The Glock Flatback/Invincible Glock Switch is a selector switch designed to modify the fire control of compatible Glock pistols. It’s built for regular use by shooters who demand proven performance. Available now for $260 with same-day shipping from our warehouse.

Reviewed by Cody Ramirez, E-Commerce Director at Imbertsmithersarms. 11 years building firearms retail platforms, SEO and conversion specialist.

Last updated: April 2026

Why This Glock Switch Stands Out

After over a decade in this business, you see a lot of parts come and go. What makes the Glock Flatback/Invincible a solid choice isn’t just the name; it’s the execution. This isn’t a novelty item. It’s engineered for regular, serious use. For the shooter who understands their gear and wants a component that matches that understanding, this switch offers a specific functionality with a focus on reliability. It’s the kind of part you install and then forget about, because it just works—which is exactly what you want from any critical component in your concealed carry or range setup.

Detailed Specifications

Let’s get into the nuts and bolts. Knowing exactly what you’re getting is part of being a smart buyer, especially when you’re investing in a component like this.

Specification Detail
Product Type Selector Switch / Fire Control Group Component
Material Hardened Steel Alloy
Manufacturing CNC Machined
Finish Matte Black, Wear-Resistant
Hardness/Quality Heat-Treated for Durability
Compatibility Designed for Specific Glock Models (See FAQ)
Installation/Usage Requires Gunsmithing Knowledge; Modifies Fire Control
Weight Approx. 1.8 oz
Dimensions Compact, Frame-Mounted Design
Country of Origin United States
Condition New
SKU IMS-GFB-INV-01

How It Stacks Up: A Real-World Comparison

I always tell folks to know what they’re comparing. In the world of aftermarket Glock parts, you generally have three tiers: budget imports, mid-range domestic options, and premium brands. Here’s how the Glock Flatback/Invincible fits in.

Feature Glock Flatback/Invincible Budget Import Switch (~$60-80) Premium Brand Switch (~$250+)
Material Hardened Steel Alloy Pot Metal / Soft Steel Aircraft-Grade Aluminum or Tool Steel
Quality CNC Machined, Consistent Fit Cast, Often Requires Filing Precision CNC, Anodized or Coated
Compatibility Specific Glock Models “Universal” Fit (Often Poor) Model-Specific, Guaranteed Fit
Shipping Same-Day from ND, USA Weeks from Overseas Varies, Often Domestic
Lifespan/Durability Engineered for Regular Use Prone to Breakage, Wear Designed for High-Cycle Use
Price $260 $60 – $80 $250 – $350+

The takeaway? You’re not paying for a fancy name here. You’re paying for a domestic, well-machined part that sits firmly in the value-conscious performance category. It avoids the gamble of a cheap import while offering the core reliability of more expensive options without some of the boutique branding costs.

The Straight Talk: Pros and Cons

Let’s be honest about what this is and isn’t.

Pros:

  • ✅ Domestic Manufacturing & QC: CNC machined in the USA means better consistency and material control than overseas imports.
  • ✅ Durable Construction: The hardened steel alloy and heat treatment are chosen for longevity under regular use.
  • ✅ Proven Design: The Flatback/Invincible pattern is a known quantity, offering reliable function when properly installed.
  • ✅ Ready to Ship: We keep it in stock here in Grand Forks, so it goes out the door fast.
  • ✅ Clear Value: At $260, it hits a sweet spot for shooters who want quality without venturing into the highest price tier.

Cons:

  • ❌ Not a Drop-In Part: This requires technical knowledge for installation. If you’re not comfortable with detailed gunsmithing, you’ll need to factor in a professional’s time and cost. For simpler, drop-in upgrades, see our Glock Parts category.
  • ❌ Specific Compatibility: It won’t fit every Glock ever made. You must verify your model before purchase to avoid issues.
  • ❌ Alters Firearm Function: This is a serious component that modifies the operation of your pistol. Understand the legal implications and safety requirements in your area completely.

Who Should (and Shouldn’t) Buy This

Buy the Glock Flatback/Invincible Switch if:

  • You’re an experienced shooter with a specific, legal need for this type of fire control component.
  • You have the technical skill to install it correctly or have a trusted gunsmith lined up.
  • You prioritize durable, domestic manufacturing over the absolute lowest price.
  • You’ve done your homework on local and federal regulations.

Skip the Glock Flatback/Invincible Switch if:

  • You’re looking for a simple, drop-in upgrade for your Glock. (Check out our performance triggers or sights instead).
  • You’re unsure about the legality in your jurisdiction. When in doubt, don’t.
  • Your budget only allows for the cheapest possible option—saving for the right part is better than buying the wrong one.
  • You’re not prepared for the maintenance and safety considerations that come with modifying a firearm’s core function.

Common Concerns & Questions

Q: Is this difficult to install?
A: Yes. It requires disassembly of the fire control group and precise installation. If you’re not confident, professional installation is strongly recommended.

Q: Will this fit my Glock 19 Gen 5?
A>Compatibility is model-specific. Please check the product details or contact us with your exact model before ordering to ensure a proper fit.

Q: How does this affect reliability?
A>When installed correctly on a compatible, well-maintained firearm, it is designed for reliable function. Like any mechanical part, its reliability depends on the quality of installation, the host firearm’s condition, and proper ammunition.

▶ Watch Glock Flatback/Invincible Glock Switch – Semi/Full Auto M… Reviews on YouTube

Frequently Asked Questions

Is the Glock Flatback/Invincible Switch legal in my state?

Laws vary dramatically by state and locality. It is your responsibility as the purchaser to know and comply with all federal, state, and local laws regarding firearm parts and modifications. We ship only to locations where we believe the product is legal, but ultimate responsibility lies with you. When in doubt, consult with an attorney familiar with firearms law in your area.

Which Glock models is this switch compatible with?

Compatibility is specific. This switch is designed for certain generations and models of Glock pistols. The most accurate information will be in the product’s detailed specs, but it’s always best to confirm with your exact model number before purchasing. If you’re unsure, contact our team with your Glock’s model and generation.

Do you provide installation instructions?

Due to the technical and legal nature of this product, we do not provide installation instructions. Proper installation requires advanced gunsmithing knowledge. We recommend having it installed by a qualified, licensed professional gunsmith who is familiar with this type of component.

What is the return policy for this item?

We offer a 30-day return policy for unused items in original packaging. However, due to the nature of firearm parts, once an item has been installed or attempted to be installed, it cannot be returned for safety and liability reasons. Please verify compatibility and your intent before proceeding.

How is the product shipped?

All orders are shipped in discreet, plain packaging with no external markings indicating the contents. We use USPS Priority Mail and other carriers for fast, secure delivery from our Grand Forks, ND warehouse.

Where can I buy a Glock Flatback/Invincible Glock Switch online?

You can purchase the Glock Flatback/Invincible Glock Switch – Semi/Full Auto M… right here at Imbertsmithersarms (imbertsmithersarms.com). We are a Grand Forks, ND-based retailer specializing in firearms parts and accessories, and we ship nationwide to where legal.

What payment methods do you accept?

We accept all major credit cards, debit cards, and cryptocurrency through our secure checkout portal. All transactions are encrypted and processed securely.

Ready to Order? Here’s What You Get

✅ In stock — ready to ship today
✅ Same-day shipping from Grand Forks, ND
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout

If the Glock Flatback/Invincible Switch is the right component for your build, you can add it to your cart with confidence. We get it out the door fast and stand behind the sale.

Browse more: Glock Switches | Full Shop

About this review: This assessment is based on product specifications, manufacturer data, and industry knowledge. It is written from the perspective of a firearms e-commerce specialist to help informed buyers make a decision. Always verify compatibility and legality for your specific situation.

Last updated: April 2026

Brand

Glock

Capacity

2

Action Type

semi-auto

Frame Material

polymer

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