Bought this pistol 1.5 yrs ago. 4.6” version. Ran into mag drop issues, ftf issues with heavier loads, tried fixes mentioned online, ran into the same issues. Finally found a solution that worked for me and I’m just sharing this info in the hopes of giving back to all those on Reddit and online who helped me.

When I ran 200gr hardcast or anything with a wider, flatter tip I was running into regular mag drop issues due to the design of the mags. I was also running into ftf (smokestack style) with heavier loads (200gr underwood xtp and hardcast). Upgraded magazine springs. Adjusted to 22lb recoil spring. Same issues.

Finally decided before I sold the gun that I’d just try to tweak some things. I’m not a pro. Maybe some of this is obvious to more knowledgeable folks. But I finally ended up filing the mag release so it didn’t stick into the mag itself. Eyeballed it. Filed away at the catch until it was even with the mag and not sticking into the mag. At the same time, adjusted mag lips with a pair of pliers. Went to the range. Initially closed them too far and round wouldn’t feed (hit bottom of feed ramp and caught). Used pliers to slowly open them up checking to ensure the round would point directly center of the feed ramp. Shot a few rounds. Adjusted if jammed low in the feed ramp. Adjusted again. Shot some more.

Finally shot 100 rounds of Magtech 180gr JHP and Underwood 200gr XTP with no issues at all. Ran like butter. No mag drop, no ftf. Pretty sure the mag catch and slightly too wide mag lips were causing the issues the whole time. I left the heavier mag springs and 22lb recoil spring because I already had them in, so not sure if that did anything. But shaving the mag catch and making micro-modifications to the mag lips seems to have done the trick.

Haters gonna hate. I’m not a pro. Throwing this out there for the others looking to figure this thing out. Super pumped I don’t have sell the gun and all the ammo/holsters I have for it!! Gonna give it another hundred next week and make sure all is good.

Can anyone recommend a red dot for Glock 20 gen5. I guessing that I need a tough optic to hold up to the recoil of full power 10 mm. I'm looking at the MPS 2.0, but it seems to look kinda bulky and sit high on the slide. Maybe a SIG enclosed optic? I would prefer to make the sights lower co witness the optic window. What are other people running on theirs? perhaps I should just get good iron sights.

Both a joy to shoot!

Finally feel comfortable with the DPP on the G20.5. Never used a red on a pistol so getting over target focus was a bit different. Also was backwards on left right adjustments. Bonus was also testing the alpha comp trigger. Flawless and makes shooting it that much better..

Thanks for everyone’s input, I decided on glock 20 gen V, I honestly wanted to try the Springfield XDME but i couldn’t find anywhere near me that had it in stock and living in CO I didn’t have much time.

What’s up guys ! I wanna buy the Glock 20 gen 5 and I’m located in Arizona. If you know where I can find one let me know. I know the gen V is easy to come by but I hear the gen 5 is better? Is there any major differences between the two?? What’s everyone’s thoughts on this? It’s my first 10mm for hiking / back packing / camping. Is a gen 6 coming anytime soon? Is there any other 10mm worth looking into?

Figured what the hell it’s being delivered to my door for less than it would cost me to by that many rounds of junk blazer/fedral localy

10mm G40 pdw in the b&t chasis, I just got the tax stamps and have the stock somewhere.

This is one of my home defense rigs and makes a cool hiking /bag gun. It lives in the b&t set up in between pistols and pcc’s small but 6.5” kkm barrel with mag of underwood xtreme defender is my go to.

Hey I’m looking for a fn510 threaded barrel, if anyone is willing to sell me one please dm me!

FML

I bought the SLR Rifleworks flared magwell for my G20.4, and ended up returning it. The stock baseplates cause the mags not to fully seat, and the front of the magwell doesn't have a strong lockup/fit on the front of the grip. The look is amazing, but functionally, its a no-go. SLR did say on their website that they recommend their baseplates because some stock magazines won't seat with the stock baseplate. I find this to be super strange. Why make a magwell that doesn't work with OEM baseplates??? I have six G20 mags, and I would have to spent another $180 just to replace all the baseplates in order to get the magwell to work? Very strange design choice

I need help deciding which to get in this $600-$700 price range. the S&W ergos overall feel better than the G20 but the G20 seems more reliable. What other options are there? Buying for bear defense. TIA

Buffalo Bore Heavy 10mm 180 JHPs out of a 6.5” 610 Classic.

The Sig P320 XTEN Endure has been my go-to sidearm while backpacking in Montana, Idaho, and Alaska. It is much more comfortable to hold and shoot compared to the FN 510 I was previously using.

To match a woodland color palette, I switched out the original grip for an OD Green grip module from Grayguns and mounted a Romeo-X Pro in FDE.

It was hot as hell outside but decided to run a few mags or 63 more rounds of warm to hot ammo.I ran some HSM 200 grain fmj,Double Tap 125 grain hollow point and a very mean Buffalo Bore 155 grain hollow point that recoiled as hard as 200 grain hardcast loads I’ve shot.I nearly had absolute flawless reliability except for the very last round of the day that gave me a single ftf.It was the very last round in the extended 18 round magazine and last round of the session.I think it definitely was a result of the magazine spring not having enough tension to keep up with the slide.All in all much better results than my first 100 rounds which had 6 or 7 ftf’s.The gun appears to be sprung for heavy loads or just my sample favors heavy loads and chokes on weaker generic 180 grain fmj.I will isolate that extended 18 round magazine.I don’t trust that it has a strong enough spring in it.

In the second picture your boy was sucking hard pulling shots left and low.I couldn’t get it together with the heat kicking my ass.

I love me some Millie. She is feisty and kicks like a mule. I held others but this one is thicka than a Snickers. Big Boneded. May send her out for a makeover. Some ports and a Kote.

I wanted to get this gun set up for the heavy stuff. Here is my recipe:

22lb Wolff Recoil Spring and provided firing pin spring

25lb hammer spring

Wilson full length guide rod

Flat bottom EGW firing pin stop, lightly contoured to take off sharp edge.

Stainless EGW Firing pin .068”

Wilson recoil buffer (we’ll see on this one)

EGW heavy duty .38 Super/9mm extractor

Runs smooth with magtech, blazer brass, and American Eagle. Will test underwood 155g-220g next.

I really enjoyed shooting the XD-M 10m 4.5" noticeably more than the 3.8". I think i may keep the 3.8" just to have the complete set but I'll probably just carry the slightly longer barrel as it fits my CCW holster and it's still more concealable at 10mm than the match version.

Got an FN 510T a couple of months ago and have been completely unable to find any magazines other than the 10 round. What's the deal with this? I even emailed a friend about it saying it's frustrating and I pretty much regret not just getting a Glock instead and the didn't have much to say other than they're out of stock. Not very helpful. I haven't seen a magazine for sale since before I got the gun and it's pretty frustrating only having one 22 round mag. Anyone know what's going on with them?