r/polymer80 • u/Infamous-Paint7263 • 17h ago
This thing shoots so flat 😍
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r/polymer80 • u/BombSquadJohnny7 • Dec 01 '21
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:
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!
TO SELECT YOUR UNIQUE USER FLAIR
If you're a manufacturer, stippler/koater, gunsmith, or holster manufacturer - or simply can't find your flair, DM a moderator.
ATTENTION VENDORS
r/polymer80 • u/Infamous-Paint7263 • 17h ago
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r/polymer80 • u/eastmade_mike • 9h ago
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This is my first geisler defense build & Ive been working on it for a few days now. For some reason when go to rack it that slide locks in place ( without the slide release). I have all pins in correctly & Ive shaved the lower good so i don’t understand the issue can anyone help? ( i have pictures of the internals as well)
r/polymer80 • u/CriticalFalcon9017 • 1d ago
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r/polymer80 • u/Az3r_ • 1d ago
Recently added a steel city arsenal magwell to my pf940c and overall the ergonomics are incredible, changes the entire grip feel but in a more secure/stable way. I’m curious what magazine extensions work with it, I’ve been between purchasing the Glock Store extensions or the Sheild Arms extensions. My main concern is the top ridge / lips of the magazine extension blocking the magazine from being inserted fully due to hitting the magwell. If anyone has a similar set up and any advice I’d love to hear it.
r/polymer80 • u/Ill-Violinist89 • 1d ago
r/polymer80 • u/1mRJay • 3d ago
r/polymer80 • u/Traditional_Towel114 • 3d ago
So I just finished building this 3d 26 a few days ago, finished my p80 17 2 months ago. I live Ina state where 3d printing/ghost guns/built guns arnt banned, so any build suggestions??
r/polymer80 • u/Sysmithers • 4d ago
The front locking block that came with my 76% is too big. It looks like its for a 17. Any recs on where I can find one? Ive never used the slit ones.
r/polymer80 • u/West-Juggernaut-1920 • 3d ago
So I’m looking into grabbing a Geisler Defense frame, but most people say the front rails sit really high. Then I see other people’s builds, and everything looks nice and flush. Is it just hit or miss, or is there something people do to make them fit?
r/polymer80 • u/Right-Ad687 • 3d ago
IS Ghostgunjigs legit because I ordered the jig and I accidentally forgot to put building name and I sent a email telling them that a couple hours ago and I still nvr got a response?
r/polymer80 • u/TapirTamer • 5d ago
r/polymer80 • u/jellybuty • 5d ago
when removing material from the cavity that the trigger housing goes in, make sure to remove material until the RRM and trigger housing is easy to insert and remove from the cavity. if the cavity is too tight, it could cause the connector spring to be compressed, leading to trigger reset failures.
this doesnt happen with one-piece RRMs because its impossible to fit the RRM in until more than enough material has been removed, ensuring enough space is always available with builds utilizing them!
r/polymer80 • u/More_Trade839 • 5d ago
As stated my brother totally screwed up this p 80 build and told me I can have it if I can fix it .. is there a way to Jb weld and redo this or is it trash? I told him to put the tools down because to me it looks like he totally screwed it .. any way it’s fixable ? I’d love to make it usable even if it doesn’t look pretty .. any help appreciated
r/polymer80 • u/Objective-Run-7384 • 5d ago
I would probably go a different route if I were to build another. thoughts?
r/polymer80 • u/Agitated-Bar-6909 • 5d ago
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shooting just fine . the p80 im using is mine that i built just like all of you .
r/polymer80 • u/Fresh-Produce-2048 • 7d ago
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Dagger slide with dust cover, 17 round mag with a +5 extension.
r/polymer80 • u/kreaturkillur • 6d ago
Guys I looked it up, but couldn't find any info. How do I shim my takedown lever on geisler gen 2?
Just found out today after bending and polishing my rear rails that when I dry fire my slide releases, meaning I'm having takedown lever issues...
I seen something in here about shimming the takedown lever, but couldn't find any info on how to do it properly.
r/polymer80 • u/Arpey75 • 6d ago
Hi, I have a recently built PF940v2 with all OE Glock internals, a Faxon barrel and a Brownell’s optic cut slide. The pistol operates fine and then the slide locks as though the mag is empty. The problem is the mag is not empty, furthermore the trigger seems to fail to reset during these failures. Once I release the slide lock a new round is chambered and the pistol will fire. Any ideas as to what is going on?
r/polymer80 • u/kreaturkillur • 7d ago
This slide is from my peanut butter geisler, but I got a jelly themed slide coming in the mail soon... Stay posted!
r/polymer80 • u/xChillyPhilx • 7d ago
GST-9. Please see all of my pics. I polished my ramp and sides. Most I ever got was 3 rounds out of it. I never tried another magazine yet though. Tried 2 different kinds of ammo. Doesn’t lock back after last round, but it’ll lock back with an empty magazine. Any help please? Driving me nuts! Thanks all!