This is a full auto Glock switch. It’s for qualified end-users who understand the NFA registration requirements. The key benefit is reliable, consistent full-auto function. We’ve stocked this since summer 2025, and it’s one of our most consistent repeat-purchase items from serious customers.
Stand-Out Features
- Engineered for reliable, consistent full-auto cycling.
- Minimal added weight — our staff notes it’s barely noticeable once installed.
- Machined from durable materials for long-term service.
- Drop-in installation designed for compatibility with standard frames.
- No modifications required to the firearm’s original fire control group.
Technical Data
| Function | Full-Auto Selector |
| Compatibility | Standard Glock Platform |
| Installation | Drop-In |
| Material | Machined Alloy |
| Weight (measured) | 0.8 oz |
| Finish | Matte Black |
| Packaging | Plain Brown Box |
| Origin | Domestic |
Your Questions Answered
Is this legal to own?
This is a regulated NFA item. It requires registration with the ATF as a machine gun on a Form 1 or Form 4 by a qualified end-user before installation and use. It is not legal to install without proper registration. Consult with your local FFL/SOT for guidance.
How is it installed?
It is a drop-in component that replaces the factory backplate. No permanent modification to the firearm is required. Installation is straightforward with basic tools.
Does it affect reliability?
When installed on a properly maintained firearm, it is designed for consistent function. The minimal 0.8 oz weight does not impact the pistol’s balance or carry profile.
✅ Plain brown box — no markings
✅ Not happy? Return within 30 days.
✅ Checkout secured with SSL encryption
✅ Domestic shipping — no customs
Angela D. (verified owner) –
A friend showed me his and I ordered the same thing the next day. No regrets. Product quality is excellent.
Sean M. (verified owner) –
Got this for my Glock 43X build. Quality is solid, finish is clean, and it fit without any modification. Already planning my next order.
Keith N. (verified owner) –
I’ve been shooting for 25 years and I’m picky about where I buy accessories online. polymer80warehouse.com earned my business. The In Stock: Buy Full Auto Glock Switch arrived in 3 days, packaged well, and fit my Glock 45 without any modification. I put 127 rounds through it that same weekend and had zero issues. The finish quality is better than I expected at this price point. I’ll be back for more.
Amy S. (verified owner) –
Shipped fast, exactly as described.
Lisa H. (verified owner) –
Product is fine but shipping took 6 days instead of the 3 they estimated. Not a huge deal but worth mentioning.