Watching this as a host for my AA .22 kit.

Sent from my SM-T280 using Tapatalk

 

The slide lock spring channel will not be there . The design uses a small spring in the center of the slide lock channel as on their cl940v2. There is a bright orange card that says small spring included in package. That’s the slide lock spring. Glock offers a trigger housing for a gen 4 - 21sf is #5406 or a full size 21. The 5406 is the one you want

 

• Is the spring like those on the 42 and 43?
• So the PF45 takes Gen 3 slides but uses gen 4 trigger housing?

If yes to above questions, that's very interesting. My guess is the reviewer on Midway didn't read/follow the instructions. I look forward to seeing some more reviews!

 

I believe it’s the same as the 42/43 very easy to see when you look down in the mold.
As for the trigger housing I attached a pic from Glock’s catalog . As you’ll see they no longer offer a gen 3 housing for the 21sf. I’m not sure what the difference is , if any . However I have a gen 3 g21 housing as well as the gen 4 5406. Ill compare the 2. Even though the gen 3 is way too big.

That being said the 5406 is the only housing Glock offers for the 21sf. I was frustrated that my rails were jacked so I called it a night. I have a Zev drop in trigger with housing on the way. I’m interested to see what housing they’re using.

 

5406 is correct. https://www.brownells.com/handgun-p...s/trigger-parts/trigger-housings/trigger-housing-w-ejector-gen-4-prod42591.aspx the PF45 uses the #5406 because it is actually a 'Slim Frame' and this was a good decision by p80. The new takedown spring is annoying when installing a gen3 lasermax guiderod. You gotta cut a notch in the polymer for the red tab on your lasermax.

 

5406 is correct. GLOCK Trigger Housing w/Ejector, Gen 4 | Brownells the PF45 uses the #5406 because it is actually a 'Slim Frame' and this was a good decision by p80. The new takedown spring is annoying when installing a gen3 lasermax guiderod. You gotta cut a notch in the polymer for the red tab on your lasermax.

I'm planning to install the gen3 lasermax guiderod into my pf45 frame. Do you have a pic showing what you had to do for the notch in the polymer for the red tab of the lasermax?

 

...
There's also the Lone Wolf Timberwolf large frame, but I haven't seen any reviews for it either.

That's the one I'm watching for reviews on.

Are all the frame internals on the G21 and G30 in the same place?

I'd love to hack off the extra length of the G21 sized Timberwolf dust cover and put my G30S slide on it.

 

I believe the locking lug geometry is different so it won't work.

 

I just assembled it and yes the 5406 is the rite housing. I still have something a little out of whack with the rear rails but everything functions

 

I just assembled it and yes the 5406 is the rite housing. I still have something a little out of whack with the rear rails but everything functions

Very helpful info. Thanks for posting and for the photos. Please keep us updated.

 

If it works well i may get one for my .22 conversion kit

 

I may be in for one of these if I can line up a G41-style build. I'm happy with the 9mm P80's so far.

 

Here’s a parts list for the pf45, Glock part numbers.

 

You dont need the plastic trigger housing pin 1774 because the pf45 kit comes with one. The kit also includes an identical pin that holds the front of the locking block rail system. These 2 pins are 3mm diameter and similar to the oem locking block pin but without the recessed center. Thank you Chas

 

so if i have the lower PF45 frame , what else do i need to complete the build?

 

That was probably a typo for you, but, the locking block pins are 3mm, the trigger pin is the only 4mm pin.

 

The ejector is a bit high. I’ll take a little material off and shoot it. Another member has the same issue, with the same fix. Well see . I’m still waiting for some parts.

 

The used kit I installed had an ejector already shiney on top from scuffing the oem slide. A lot of scuffing compared to a new ejector. They must have placed that ejector as high as possible for the larger casing?

 

I may be in for one of these if I can line up a G41-style build. I'm happy with the 9mm P80's so far.

Is your 41 a Gen3? If not the Gen 4 uppers will work if u open up the guide rod channel but frame is paper thin in the channel above the picatinny rail. It’s now becomes a dust cover only.

 

Sorry for the confusion. I don't have a Glock 41, but would buy this new frame once somebody (like 80P Builder maybe) offers a G41 length slide.

 

Stormlake Pistol Barrel for Glock 21/21SF 45ACP-To-10mm Conversion 6.02 in. Extended Length 34018

https://www.opticsplanet.com/storml...m/stormlake-glock-21-21sf-45acp-to-10mm-conversion-6-02-in-extended-length.html

G21 parts kit
https://everygunpart.com/glock-glock-21-semi-auto-black-6240.html

Just need a 10mm extractor and you in at $800ish with a "G40".

 

Resurrecting an old thread.

Finally ordered a PF45 and trying to get all my frame parts together. Already have several, but a couple of questions if anyone knows or recalls assembling one.

• What would be the correct extended slide stop lever? On a couple of sites, they have the "regular" version for the SF frames, and I guess a larger one for the non-SF 20/21 frames. Since the PF45 takes an SF trigger housing, not sure which extended slide stop to choose.
• What extended mag release are folks using for this frame? Again, looking at a couple of sites, the factory extended mag release says it's not for Gen 4 or 21SF models. Prefer to stay with polymer. Looks like the armorer's parts list doesn't list an extended one for the large frames.

Any replies appreciated.

 

You'll need a frame parts kit, magazine, slide, barrel, and slide parts kit. And sights. Can't recall if the slide parts kit contains sights.

IIRC, the two differences in parts between the PF45 and standard G20/21 frame are the slide lock spring and the trigger housing needs modification. The P80 instructions explain the slide lock spring, but the instructions don't mention the trigger housing.

Marine Gun Builder has a good YT video on modifying the trigger housing.

Good luck.

 

I have been collecting bits and pieces for 3 months to do a few builds. I have a P45. I found this community to be VERY informative. Check them out Gunsmith | Marine Gun Builder there is a YouTube channels from the same community too.

 

I considered the PF45 but it was much easier to purchase a Glock 21, which I recently did after putting it off for about 2 years. After almost 500 rounds in about a month and a half, has provided me with no issues and came fully assembled and complete right out of the box.

Now, I leave all things 80% for other people to waste parts and money on.

 

I built one and have run 200+ rounds through it. Shoots very well, no malfunctions. Easier to shoot and more accurate than my 1911 Commander, plus can hold more ammo!

 

I've got on PF45 frame with another on the way (as of last night). I haven't built one, yet. From what I understand, the trigger housing needs some modification to fit the frame. I figure to build one in .45-ACP and the other in 10-mm.

I have been collecting bits and pieces for 3 months to do a few builds. I have a P45. I found this community to be VERY informative. Check them out Gunsmith | Marine Gun Builder there is a YouTube channels from the same community too.

Unfortunately, the Marine Gun Builder forum was shut down by the owner. There is a new forum with many of the same very knowledgeable members. See link in my signature.

 

I recently built one as well, got a better price on the "Cobalt" color, which looks brown to me. I paired it with a Tungsten Rockslide w/ Venom optic cut and a LW barrel. I had read about the LW frame parts kit/trigger causing a problem, but have not had any with this build. I also used their slide completion kit. I'll note they offer two frame kits- the more expensive one comes with the locking block, which is not needed for the PF45. At the time I built mine, there were zero reasonably priced OEM triggers w/ bar, so the kit was the only way to build it.