What's the Worst POS firearm you ever owned?

[Vandal]

Rock Island 1911 Tactical. Wouldn't run reliably with their mags, Wilson mags or Chip McCormick mags. After it jammed up hard one day I ditched it and picked up a Kimber Stainless II. Oddly enough, the Kimber ran great.

[chuckman]

Ruger MkII 22/45

I hate this word--HATE--but it was the quintessential "jam-o-matic."

[Renegade]

AMT Hardballer.

[Don Robison]

S&W E series 1911. Giant POS, firing pin safety in it wouldn't function correctly after two trip to S&W it was always a guess on if it would go click or bang. Wouldn't own another one.

[TMS951]

Late Gen 2 Glock 23. Phase 3 malf, slammed unejected cartridge into the slide. Early Gen 3 Glock 31, same type of issue, the frame was the issue, it was out of time. The problem followed the frame amongst multiple uppers.

The above were meant to be good guns, but were total garbage. I have a wasr-10 ak the was 250$ and technically a POS, it however has been a great gun with no issues. I say this not being an AK guy and owning that one AK and probably 15 very high end ar15s.

[Vegas]

Ruger MkII 22/45

I hate this word--HATE--but it was the quintessential "jam-o-matic."

Mine was a MKIII 22/45. Finicky feeding and minute of barn door accuracy no matter the ammo.

[ramairthree]

Taurus Thunderbolt .357
It just is not made to have enough intrinsic stoppage at the tube, so an extra round can came out and cause MOAJs.
It also lacks repeatable precision in the action, causing rounds to sometimes not feed right.
If it had about 10% more time on the drawing board/R&D, and 10% more manufacturing effort, it would be really cool.
But periods of working great with too frequent jams relegates it to not even fun as a range toy.

S&W Model 15
I bought it in the 80s, it was made in the 70s. Must have been something wrong with it. The DA pull was so hard it was literally painful. One of the few guns I have ever sold.

P14-45s
Mid 1990s
Worked great. Liked it. So got a limited as well.
Then extraction issues. That don't get better no matter what extractor is placed or fitted now. The limited worked great. Then the front sight fell off. Any front sight replacement is so hard to fit, by the time it is fit, it will fall loosen up off within a few thousand rounds. Just not made for long term, heavy use when all is said I guess.

Mag fed shot guns.
Saiga 12 and my son's MKA 1919
Tons of fun when working
Tons of time dicking around when they are not

Romanian PSL
If I shoot corrosive ammo, not matter how well I clean it, it will get gunked up at the tip of the piston in the housing where it comes off the barrel. It will want to stick and not let the bolt be pulled back. And I hate the PSP scope. I don't feel like printing off pages of shit to go to the range with and mess with four screws sighting in some funky, offset scope.

Mag fed 30-30s, .225 Winchester, etc.
Not a damn one has ever fed for me. They become mag not fed single shots.

FA91 HK clone.
Loved the railed top, I hate the HK scope mount.
After a few dozen rounds it would heat up and I could not pull the op rod back.
The receiver was dx'ed and it became an expensive parts kit for a rifle built on a PTR receiver.

[Todd.K]

SKS. It fired with safety on and without the trigger being pulled. I think adding Chinese quality steel to a bad fire control design makes them all an AD waiting to happen.

[bighawk]

I went through a weird pocket pistol phase for a while and the Taurus 738 TCP .380 was by far the worst gun I have ever owned. I should have known better but the price suckered me in to trying it out.

[SteyrAUG]

Lesson learned: never EVER buy a parts gun. EVER.

Depends on the parts, depends who made it.

I have a few Bulgarian AK builds on Nodak receivers that are perfect. But if you aren't knowledgeable about such things, as a general rule avoiding parts kit guns is a good idea. I've seen some terrible ARs and FALs.