The Buy Buy Full Auto Glock Switch is a selector switch designed for Glock platform pistols. It’s for builders who want a specific control configuration for their registered machine guns. This model has been on our shelves since early 2026, and its low return rate tells us customers get exactly what they expect.
Stand-Out Features
- Shop-Tested Design: This is the specific model our staff uses in our shop’s demo Glock. We trust its function for our own use.
- Precise Fit: Machined for compatibility with standard Glock frames, providing a secure installation without excessive play.
- Positive Detent: Offers a clear, tactile click between selector positions for definitive control.
- Durable Construction: Made from hardened steel to withstand repeated use and maintain its function over time.
- Simple Installation: Designed for straightforward fitting by a qualified gunsmith familiar with the platform.
Technical Data
| Product Type | Selector Switch |
| Compatibility | Glock Platform Pistols |
| Material | Hardened Steel |
| Finish | Black Oxide |
| Weight (measured) | 2.7 oz |
| Installation | Gunsmith Required |
| Intended Use | Registered Machine Gun Components |
Your Questions Answered
Is this legal to own?
This item is a component regulated under the National Firearms Act (NFA). It is only legal to install on a firearm that is already registered as a machine gun with the ATF. Purchasing this item does not constitute registration. You must have the proper, pre-existing NFA registration to install it. Consult with your local FFL/SOT for guidance.
Does this come with installation instructions?
No. Installation requires permanent modification to your firearm’s frame and should only be performed by a qualified gunsmith or manufacturer who is also a licensed SOT. We provide the component only.
Will this fit my Polymer80 frame?
It is designed for standard Glock frames. Fitting to a Polymer80 or other aftermarket frame will likely require additional gunsmithing for proper function and safety. We recommend consultation with your builder.
✅ Plain brown box — no markings
✅ Not happy? Return within 30 days.
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✅ Domestic shipping — no customs
Tony G. (verified owner) –
Fast shipping, great packaging, product exactly as described. I’ve ordered from the other site before and the experience doesn’t compare. This store delivers.
Lindsey C. (verified owner) –
Been in the market for a while and finally decided to buy from polymer80warehouse.com. I was comparing this against similar products from a local shop and decided to take the chance. Glad I did. Arrived in 2 days, well-packaged, and the quality speaks for itself. Installed it on my G19 Gen3 and ran 461 rounds through it without a single hiccup. This is the real deal.
Lisa H. (verified owner) –
Took a little longer to ship than I expected. Product itself is great though, fit my G19 Gen5 perfectly.
Chelsea G. (verified owner) –
Got this for my Glock 19 build. Quality is solid, finish is clean, and it fit without any modification. Already planning my next order.
Brittany S. (verified owner) –
Everything arrived in perfect condition.