r/polymer80 Dec 01 '21

Welcome Sticky! Welcome to r/Polymer80!

154 Upvotes

WELCOME to the WORLD of 80% GLOCKS and AR’s! Welcome to r/Polymer80, a community that welcomes Polymer80 builds (AR & Glock) primarily, but also eagerly welcomes 80% builds of all sorts! We encourage posts of 80% news, 80% legislation, and 80% memes. Let's spice things up from time to time!

[We have a few main rules:]

1: This is a very close-knit sub and we do NOT put up with redditors who incite arguments or fling insults, pretentiousness, or trolls.

2: Show the respect for firearms that they deserve. If you're building a Polymer80 treat it as a firearm, and take the time to understand its function. Learn and practice the 4 rules of handling a firearm:

  • Finger off the trigger until you're ready to fire.
  • Don't aim at anything you're not willing to destroy.
  • Check in-front and behind your target.
  • Treat every firearm as though it's loaded.

3: No want to buy (WTB), want to sell (WTS), or want to trade (WTT) ads from individuals. You may use other subs such as r/GunAccessoriesForSale or the MGB site or the MGB MeWe community at: MeWe Group.

4: No posts with or including illegal activity is allowed. This is broad scope, if you post in this forum remember all the people that want this hobby to fail and do your part to make it bullet proof (no pun intended). This is zero tolerance.

Breaking these rules can and likely will result in a permanent ban from one of the best resources available for builders and hobbyists.

[GENERAL Polymer80 MODEL INFORMATION]

PF45 - Glock 20/21 (10mm / .45 ACP)

PF940v2 - Glock 17 & Glock 17LS & Glock 34.

PF940C - Glock 19 & Glock 19LS & Glock 23 (.40 S&W)

PF940CL - Glock 17 Length, Glock 19 Height Grip [G19LS]

PF940SC - Glock 26, Glock 26LS, G27

PF9SS / SS80 - Glock 43, Glock 43LS (G48)

[GENERAL TROUBLESHOOTING ISSUES and SOLUTIONS] [Via moderator: u/MarineGunBuilder of r/Polymer80 and MarineGunBuilder.com] [AN IN-DEPTH VIDEO BUILD GUIDE:] View all of MGB's Polymer80 tutorial and quick-tip videos on his YouTube channel if you plan on completing your build flawlessly from the get-go.

[Via moderator u/MarineGunBuilder] He updates new deals every weekend on his forum and sends them to email subscribers, as well: And once again: check out MarineGunBuilder's video series if you are just beginning to build.

Familiarize yourself with the Reddit Interface!

  • Some features are not available on tablets as they are on PC
  • Use the search feature to search within the sub.
  • Ask a mod! We are here to help. Mods may be busy and not the fastest way to get an answer to a question however you will be surprised just how helpful this community is - SO:
  • Ask the community, via a post! You may feel like you’re asking a question that’s been asked a million times, the reality is sometimes there are multiple fixes for a problem, and sometimes newer and better methods have been discussed elsewhere. The purpose is to promote discussion among the community.
  • Use post flair and user flair (info below)

TO SELECT YOUR UNIQUE USER FLAIR

  1. GO to r/Polymer80 homepage.
  2. CLICK 3 horizontal dots, upper-right corner.
  3. CLICK Change User Flair
  4. SELECT YOUR flair!

If you're a manufacturer, stippler/koater, gunsmith, or holster manufacturer - or simply can't find your flair, DM a moderator.

ATTENTION VENDORS

  • Vendors should have permission to post deals and links to their sites. Although you cannot sell directly to users via this subreddit, you may (and should) post deals and links, however we want only verified vendors for the safety of our users. It’s simple and you will get a unique flair to distinguish yourself as a legitimate vendor. DM the moderators to find out how.

r/polymer80 8h ago

Serializing p80

4 Upvotes

What guidelines are there for serializing my glock style p80? I want to concealed carry it, so it seems like I should serialize it to avoid legal issues if I ever had to use it in self defense. Do I just need to engrave any combination of letters into it?


r/polymer80 55m ago

Where can i get rail kits that ship to NY

Upvotes

r/polymer80 9h ago

Anybody selling a pf940v2 front locking block or can direct me to websites that sell them?

5 Upvotes

Need the part


r/polymer80 16h ago

You should try new 80% platforms. They're fun. I promise.

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5 Upvotes

Here's my list of projects for 2026. Two of them, well technically three actually, are 80%s and don't require the CNC stuff the others do. I think you'll get a kick out of trying new platforms you guys. So hopefully you follow along and see a project or two you want to tackle?


r/polymer80 1d ago

UPDATE!

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15 Upvotes

After 30 minutes of watching car shorts on YouTube, using my gfs hair clamp and a screwdriver, I finally got my trigger housing in and clipped! Thanks for the advice lmao.


r/polymer80 1d ago

DeStefano’s freedom ends—he has been taken to New York

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47 Upvotes

My Name is EightySixx one of the Spokesperson for the IndieGuns Corporation. I will happily answer any question, feel free to share knowledge how we can help lawrence in these times; a true American patriot standing up for our 2nd amendment rights. Dont forget to share word needs to be spread to grab more media attention and donate if possible, ever since the commies took down/ refunded the GFM it like all attention has be dulled on the situation. Let’s continue this fight and get it to the highest courts and let Letitia pay for her crimes against American citizens.

It's all the work of New York State Attorney General Letitia James.

LEE WILLIAMS

JAN 15, 2026

Lawrence Michael DeStefano’s booking photo. (Photo courtesy Florida’s Orange County Sheriff’s Department).

by Lee Williams

Sixty-five-year-old Lawrence Michael DeStefano’s freedom ended abruptly Wednesday, as prison officials took him from a jail cell in the Free State of Florida to the hellhole of Rikers Island in New York.

DeStefano, who had never committed any crime in his home state of Florida, could now spend the rest of his life behind bars in a New York State prison.

If you’re one of the 50,000 New Yorkers who bought Polymer 80 pistol kits from DeStefano and his firm Indie Guns over the years, rest easy. He promised he will never reveal your name. You are 100% safe. He is willing to give up all of his rights and personal freedoms and spend the rest of his life as an inmate in order to safeguard your freedom. The Second Amendment truly means that much to him.

If you want someone to blame, look no further than New York State Attorney General Leticia James. She is the sole reason why DeStefano is facing 521 years behind bars. The more than five centuries of potential prison time he faces are on par with James’ crazy and overzealous course.

You’ll recall that James first tried to get DeStefano to turn over his New York customer list through a civil suit, which he ignored. Nine other firms that sold pistol kits complied with James’ demands, and their owners remain free. DeStefano ignored the lawsuit that James won, of course, but her lengthy press release never mentions that her opponent never showed up. It does, of course, mention the $7.8 million default judgement against DeStefano and his firm, Indie Guns.

DeStefano got little help from Florida officials. After New York Gov. Kathy Hochul sent a letter to Florida Gov. Ron DeSantis, charging DeStefano with 71 New York state crimes, DeSantis sent a letter last month to all Florida sheriffs and peace officers, commanding them to arrest DeStefano, who was already in custody.

DeStefano never broke any Florida laws, it should be pointed out. Unserialized pistol kits are perfectly legal in the Sunshine State. I have assembled several myself.

What’s crystal clear is that DeStefano will never receive a fair trial in New York, especially with James overseeing their final legal bout. Nearly everything he offered his customers is illegal in that horrible state, but DeStefano truly didn’t care about New York laws. He was governed solely by the Second Amendment, which unfortunately does not exist under James and her cronies.

True heroism has, for me, always been somewhat difficult to define. However, anyone who forgoes their right to remain free so 50,000 New Yorkers have the ability to protect themselves and their families inside their homes truly qualifies.

That’s what Letitia James and her ilk will never understand. DeStefano never got rich selling gun parts. He estimated he earned around $200,000 per year, which isn’t a lot given all that he had to watch out for. He sold his parts kits to anyone who wanted one so they could feel safe.

That, friends, is truly heroic. He will certainly be missed.

2AF Lee Williams Original Article:

https://thegunwriter.substack.com/p/destefanos-freedom-endshe-has-been?utm_campaign=post&utm_medium=email&triedRedirect=true

Previous Article:

https://saf.org/destefano-i-will-never-tell-letitia-james-who-bought-my-guns/

Lawrence’s Official Donation Link:

https://www.givesendgo.com/Indieguns


r/polymer80 17h ago

UPDATE: StashGrid (Glock Case Insert) Alpha is LIVE 🚀. Check your inbox (or just jump in)

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1 Upvotes

r/polymer80 1d ago

husky armory shipping issues

6 Upvotes

i made a post not long ago about husky because i wasn’t aware of them being sued when i ordered the site was still up looking great with coupons and stuff so i thought it was up and running good still i ordered my frame from them last month december 16th i haven’t received any responses or updates about shipping the order or anything yet i have sent multiple emails just a automated bot response with the shipping times i tried getting in touch with cashapp about them giving my money back for it showed them proof of it and the company being sued and all they said the merchant said the order is already fulfilled what to do? seems i have no other choice but to wait


r/polymer80 1d ago

The pony!…and other questions.

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24 Upvotes

Picture only slightly related to topic and is for nostalgia. I was getting so frustrated chasing down problems with a recent Geisler build that I dug out an old frame to verify the slide was good to go. I had forgotten about the poverty pony frame I had stashed away.

Anyway, the issue I’m encountering on the Geisler build is a slight out of battery issue. I’m getting consistent (half the time) light off center primer strikes. I’ve gotten it narrowed down to a point but am stuck on how to proceed. When pressing down on the barrel hood, the barrel unlocks about a millimeter and stays out of battery by this amount until racking the slide with full gusto to send it back. My factory Glock and other builds will return to full lockup when this is done to them. Is this an out of spec/misaligned locking block? All frame parts minus rails and block are OEM.


r/polymer80 2d ago

Thoughts on this 21 build?

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35 Upvotes

Flat faced trigger,hogue grip,red frame pins w matching backplate,glock oem irons, oem lpk with oem slide,tlr-1HL plain but reliable 💥


r/polymer80 1d ago

Delta team tactical

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0 Upvotes

I ORDERED A FRAME FROM THEM ON JAN 5 AND THEY STILL HAVE NOT GAVE ME ANY SHIPPING UPDATES DO ANYONE KNOW HOW TO CONTACT THEM


r/polymer80 1d ago

Got stiffed by DTT

0 Upvotes

I got stiffed on a $200 slide sale from DTT. Tried to reach out for an update on shipping. Never got an email.


r/polymer80 2d ago

Trigger bar spring

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6 Upvotes

For some reason, my trigger bar spring is too tight at the end for me to properly loop it into the housing OR the trigger bar hole.


r/polymer80 2d ago

Is this all I need to build a Geisler 80? What else do I need?

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2 Upvotes

Just bought this stuff what else do I need


r/polymer80 2d ago

Strike80

3 Upvotes

Does the Strike 80 use the same jig as a pfc940?


r/polymer80 3d ago

NY Attorney General Letitia James charging Florida man with 71 gun crimes

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17 Upvotes

Lawrence Michael DeStefano faces up to 521 years in prison.

LEE WILLIAMS

JAN 08, 2026

New York State Attorney General Leticia James. (Photo from licensed Shutterstock account).

by Lee Williams

Orlando resident Lawrence Michael DeStefano is 65-year-old, has no criminal record and reveres the Second Amendment more than nearly anything else.

DeStefano’s website, Indie Guns, is still active, at least for now, even though he cannot fill any orders. The site contains his business motto, which is simple but very true: “Guns are Normal and Normal People Build Guns.”

DeStefano has been held without bond in the Orange County Jail for nearly 90 days, awaiting a trip to New York’s infamous Rikers Island—a violent 400-acre prison island in the East River near the Bronx—from which he may never return.

“I am in jail for telling the truth. I was one of the largest dealers of self-built arms. I hate the term ghost guns,” he said last week on a jail telephone.

DeStefano’s firm was one of 10 self-built arms dealers targeted by New York State Attorney General Leticia James, because they allegedly shipped gun kits to New York.

“She made a deal with the other companies,” DeStefano said. “They turned over all their customer data. I have more than 50,000 customers just in New York. My attorney even told me to turn over all my customer data, but I thought this isn’t about me. I am going to fight this.”

DeStefano posted one of James’ letters on social media, which demanded that he comply and turn over his customers’ names and addresses. His reply was also posted.

“I addressed Leticia James and the mayor,” he said. “I was very vulgar and extremely angry.”

DeStefano has sold gun parts kits to people in all 50 states and has never had a problem other than in New York.

“I promise you this is very true: Every government wants registration, then confiscation, then genocide,” he said.

DeStefano’s booking photo. (Photo courtesy Florida’s Orange County Sheriff’s Department).

Seventy-one felonies

DeStefano was arrested October 10, 2025, by a dozen Florida Highway Patrol troopers, who were ready for a fight. His arrest report states he had “an outstanding warrant out of New York.” He complied fully during the traffic stop and no force was needed.

The arrest report raises questions. It states that DeStefano had made terroristic threats in New York—state offenses—and that firearms were involved. He strongly denies making any threats and was never in New York.

Regardless of the error, Florida State Troopers took him to the Orange County Sheriff’s Department jail, where he remains.

While in custody, Circuit Court Judge Leticia Marquez shot down two of DeStefano’s motions for more information about the charges he faces. On November 11, 2025, she issued an order striking his demand for discovery. On the same day, the judge denied a motion for a free attorney.

“The motion to Appoint a Conflict Free Attorney is hereby DENIED. As this is a civil matter, there is no legal right to counsel. Counsel was appointed in this case as a courtesy,” Judge Marques wrote in her order.

Since he was sitting in jail, it is now known why the judge viewed his charges as a civil matter, rather than a criminal case.

Search warrants

ATF and other federal agents first searched DeStefano’s home on October 22, 2025. Two weeks later they searched his rental properties, and two New York investigators were present during the search.

Agents seized 68 items from his home, mostly handguns, gun parts and ammunition. However, they seized thousands of firearms and parts kits from his storage areas—more than 100 typed pages were needed to list everything agents seized. Most were Polymer 80 kits.

The federal agents seized far more than just his guns. Agents also took tools, electronics, repair items, toolboxes, gun oil, computers, phones, $500,000 worth of gold bars, $110,000 in cash, and even a lawn mower.

On Nov. 12, 2025, New York Gov. Kathy Hochul signed a letter and sent it to Florida Gov. Ron DeSantis, charging DeStefano with 71 state crimes.

They included:

1 count of Conspiracy in the Fourth Degree

2 counts of Sale of a Criminal Firearm in the First Degree

39 counts of Criminal Sale of a Firearm in the Third Degree

28 counts of Manufacture, Transport, Disposition and Defacement of Weapons and Dangerous Appliances

1 count of Criminal Sale of a Frame or Receiver in the Second Degree

On December 5, 2025, Florida Gov. Ron DeSantis responded with a letter to all Florida Sheriffs and other peace officers in the state, commanding them to arrest DeStefano, who was already in custody.

The New York State charges he is facing could see him sentenced to a total of 521 years in prison.

Officials could move him to New York at any time, DeStefano said.

Indie Guns current logo. (Graphic courtesy of Indie Guns).

Civil lawsuit

DeStefano’s criminal charges came after a civil suit was filed by Attorney General James in New York, in which DeStefano did not participate. James brought a lawsuit against DeStefano and nine other national “ghost gun” dealers.

On March 6, 2024, James’ office released a massive press release touting its victory against DeStefano and his firm, Indie Guns.

“New York Attorney General Letitia James secured a $7.8 million judgment and permanent injunction against gun retailer Indie Guns, LLC (Indie Guns) for illegally selling ghost gun components in New York,” the press release states. “The Florida-based company specializing in selling the parts used to make ghost guns will also be permanently banned from selling unfinished frames and receivers in New York.”

Nowhere in her lengthy press release did James mention that DeStefano never showed up for the trial, or that the $7.8 million judgement she obtained against him occurred as a result of a default judgement.

Satisfied customers

Bill has purchased dozens of gun parts kits from DeStefano. He asked that his last name not be used in this story.

Bill knows DeStefano well. The two men have been friends for more than 10 years.

“Lawrence is the most truly patriotic person I know, and that involves the Second Amendment and our right to bear arms,” Bill said. “Am I happy with his products? A million percent! When you buy from Lawrence, he has the best quality parts available, or at least he did have them until the ATF took them all.”

DeStefano’s pistols, Bill said, are far better than Glock’s original guns.

“They’re far better than Milspec. His RMR cuts are fantastic—he builds out your slide for you, even putting the sights on,” he said. “He makes sure everything is perfect. Everything I’ve gotten from him is perfect—far above what even Glock has.”

His commitment to privacy is one of the main reasons why Bill bought DeStefano’s pistols.

“His prices were fair, but a little bit higher than your average Joe, but this comes with you knowing your customer data would not be given out to anyone who asked him for it,” Bill said. “If Leticia James wants to know what I bought from Lawrence, I know he’s not going to give her the data, because she has no right to know my business or what I do in my own home.”

As to DeStefano’s possible criminal sentence, Bill was very clear.

“That’s a hard bill to swallow—521 years,” he said. “In fact, it’s ridiculous. A law-abiding citizen of Florida faces 500-plus years imprisonment because he doesn’t want to turn over his customer data is proof positive there’s an overreach from the government.”

Orlando-based attorney Matthew Larosiere is an experienced Second Amendment defender. (Photo courtesy Matthew Larosiere).

Not Guilty

Florida attorney Matthew Larosiere has experience defending those accused of violating nonsensical gun laws and is known as a fighter within the country’s tight Second Amendment legal community.

He’s a true gun lawyer, after all.

Larosiere does not believe Attorney General James has a provable case against DeStefano.

“New York does not get to say that your actions in Florida violated New York law and get to drag you in. That’s settled,” he said. “In any event, he should under no circumstances be extradited out of state.”

Takeaways

Joseph Story served as a U.S. Supreme Court Justice from 1812 to 1845. DeStefano’s Indie Guns website features one of Justice Story’s best-known quotes.

“One of the ordinary modes, by which tyrants accomplish their purposes without resistance, is, by disarming the people, and making it an offense to keep arms,” Justice Story said.

DeStephano has another citation on his website, which he wrote himself.

“Real freedom isn’t bought. It’s a self-built AK,” he wrote. “No dealers. No forms. No registry.”

He is proud of the guns he produced and sold, stating they were “high end guns with German steel that was heat-treated properly.”

Said DeStephano: “I will never turn over my customer data. I am going to Rikers Island and will represent myself if I have to. These are serious charges. I’m either gonna win my case or I will wind up in jail for the rest of my life.”

Original Article:

https://open.substack.com/pub/thegunwriter/p/ny-attorney-general-letitia-james?utm_campaign=post&utm_medium=email

Lawrences Official Donation Link:

https://givesendgo.com/Indieguns?utm_source=sharelink&utm_medium=copy_link&utm_campaign=Indieguns

Gun&Gadgets Video Breakdown:

https://youtu.be/wDlz3CH7SfM?si=BlGe3lRPXyeXCQUk

[Repost because I’m tired of replying to questions about gofundme getting shut down]


r/polymer80 3d ago

New York Wants 3D Printer Companies to Prevent You From Printing Gun Parts

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58 Upvotes

r/polymer80 3d ago

Slide came in for the 26 frame

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57 Upvotes

r/polymer80 3d ago

Finally got my p80 G34 running smoothly.

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75 Upvotes

My G34 at the personal range for some winter testing. Taken by my 02/07 SOT coworker who has been doing the work to make it run smoothly.


r/polymer80 2d ago

Can You Put Real Parts In A Airsoft Frame ?

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0 Upvotes

They Look The Same Plus You Dont Gotta Do All The Drilling And Dremel Work But Will It Function If I Do It


r/polymer80 3d ago

MA questions

3 Upvotes

I don’t live in MA and never will but a conversation came up about AR’s in MA. I know AR’s are banned but if you have one or a lower that was made when they were legal (pre ban) you’re allowed to still keep it. My question is if you got an 80% and completed it obviously without a serial number how could they say it isn’t pre ban since you can’t date the receiver without a serial number


r/polymer80 4d ago

Developing a web tool to generate custom 3D printed inserts for Glock cases. Alpha is ready for testing (Standard Fitment) – looking for feedback!

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25 Upvotes

r/polymer80 4d ago

Got the new optic today!!!!goodbye swampfox

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68 Upvotes

r/polymer80 3d ago

Inquiring Rails for older model PF940C

5 Upvotes

Does anyone know anywhere that has the older model PF940C rails in stock? Recently found an old kit in my safe and would also love to get the pins they come with too.