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Yesterday 6:37:05 PM EDT
Yeah so I'm impulsive I guess.  I went to the local shop just now to pick up a transfer and there was an HK Mark 23 in the used case.  I put it on layaway.  I just bought a modular suppressor and I didn't have anything 45 ACP with a threaded barrel.  That's reason enough, right?  

What do I need to know, look out for, etc?  Never owned anything like it.
THANK YOU FOR YOUR ATTENTION TO THIS MATTER
Yesterday 6:38:43 PM EDT
[Last Edit: MFRecon2][Edited] [#1]
Because you got little girly hands

Well.. that's the reason I don't have one
Yesterday 6:40:59 PM EDT
[#2]
What is layaway?
Yesterday 6:42:12 PM EDT
[#3]
Cause the HK45 or HK45C are better pistols?
Yesterday 6:43:24 PM EDT
[#4]
It was built as an offensive handgun…

Of course you need it!
a loaded gun won’t set you free, so you say…
Yesterday 6:45:06 PM EDT
[#5]
Quote History
Originally Posted By eurotrash:
What is layaway?
View Quote



A former member, God rest his soul, 7mary3, had a hilarious definition of layaway I won't be sharing as to preserve my membership
I've met cats and dogs smarter than Cory and Trevor.
Yesterday 6:45:29 PM EDT
[#6]
Likely the most durable handgun on earth.
Yesterday 6:45:42 PM EDT
[Last Edit: Glockman4][Edited] [#7]
Needs a 16x1 RH piston. Whatever you have on the current suppressor probably won’t fit.

Wouldn’t be HK if it wasn’t proprietary and cost extra.
Yesterday 6:46:15 PM EDT
[#8]
Get an usp in 9mm. 45 is silly in 2026.
Yesterday 6:47:53 PM EDT
[#9]
Quote History
Originally Posted By tac556:
It was built as an offensive handgun…

Of course you need it!
View Quote


And a crew served weapon
"The villainy you teach me, I will execute, and it shall go hard but I will better the instruction"
Yesterday 6:48:01 PM EDT
[#10]
If the price is right, there’s not much I won’t buy.  I picked up a Mk23 a couple years ago, shot it once and put it in the back of the safe.  I don’t care anything about suppressing it, so no help there.
https://www.guntechtips.com
Yesterday 6:50:50 PM EDT
[#11]
Quote History
Originally Posted By MFRecon2:
Because you got little girly hands

Well.. that's the reason I don't have one
View Quote

Same.  Small hands and a huge hand gun.  If you can comfortably shoot a bigger semi auto, get that thing.
Yesterday 6:51:12 PM EDT
[#12]
I shot a Mk23, USP45 and HK45 all against each other back to back - the HK45 was hands down the best of them. Suppressed or not. You give up two rounds but gain ergonomics, comfort, and the ability to use HK P30L holsters to carry it if you want. And a normal Euro 45acp thread to boot. (16x1LH)

If you want one just to have one, go for it, no one will blame you...but if you plan on actually shooting it a bunch, get an HK45. It literally took all the lessons learned from the Mk23 program that were then rolled into the USP45, distilled it all, and put it in a better package.
"Oh, bother," said Pooh, as he pulled the pin on another grenade...
Yesterday 6:51:15 PM EDT
[#13]
Bruce approves,
Yesterday 6:56:32 PM EDT
[#14]
Quote History
Originally Posted By eurotrash:
What is layaway?
View Quote


OP is poor
Yesterday 7:02:55 PM EDT
[Last Edit: Stryfe][Edited] [#15]
Quote History
Originally Posted By gettysburg30:


OP is poor
View Quote View All Quotes
View All Quotes
Quote History
Originally Posted By gettysburg30:
Originally Posted By eurotrash:
What is layaway?


OP is poor

In fairness OP might live where there's a waiting period
Or OP might be a cash bro and wasn't rolling with enough loot.
I on the other hand wouldn't buy one because i can't afford all the original accessories.
I went FNX45T because it was optic ready and 'Merican threaded.
Yesterday 7:11:56 PM EDT
[#16]
Quote History
Originally Posted By gettysburg30:
OP is poor
View Quote

OP was picking up a $1300 gun, that's why he was there!
THANK YOU FOR YOUR ATTENTION TO THIS MATTER
Yesterday 7:14:37 PM EDT
[#17]
Quote History
Originally Posted By cmeyer001:
Cause the HK45 or HK45C are better pistols?
View Quote


Yes.





Familiarity and prolonged exposure without incident leads to a loss of appreciation of risk.
Yesterday 7:21:08 PM EDT
[#18]
I need a MK23 too. And both an HK45 and HK45C.

In the meantime, I enjoy my USP45 Tactical.

Attached File
Yesterday 7:24:30 PM EDT
[#19]
Quote History
Originally Posted By eurotrash:
What is layaway?
View Quote


It is a way a man can have a store hold something so they can ask their wife for permission to buy it.

Yesterday 7:25:01 PM EDT
[#20]
Can't the MK23 shoot .45 Super?
Yesterday 7:34:25 PM EDT
[#21]
Just remember it has almost nothing in common with the USP 45.

Different mags, different thread pitch. Other than that, enjoy your new purchase.
Yesterday 7:37:33 PM EDT
[#22]
Quote History
Originally Posted By jagdterrier:
Can't the MK23 shoot .45 Super?
View Quote
It can.
Yesterday 7:38:57 PM EDT
[#23]
It's really not fun/comfortable to shoot
Looks cool though
PROUD AMMOSEXUAL
Founding father Tench Coxe
“Their swords, and every other terrible implement of the soldier, are the birthright of an American."
Yesterday 7:43:14 PM EDT
[#24]
Quote History
Originally Posted By JellyJugz:
Get an usp in 9mm. 45 is silly in 2026.
View Quote

Yesterday 7:47:50 PM EDT
[#25]
Perfect pocket gun.
Yesterday 7:50:14 PM EDT
[#26]
I don’t see any use for one. But I want one, and if I see one locally, I’ll get it. I have small/medium hands, but I can shoot the mk23 so so. I had a USP45 that i gave away, but I didn’t have any issue shooting it. Kinda regret that.
I had a spare OEM threaded barrel and five mags for it.
Bleeding edge of retardation
Yesterday 7:53:09 PM EDT
[#27]
Quote History
Originally Posted By Sticklebackbob:
I don’t see any use for one. But I want one, and if I see one locally, I’ll get it.
View Quote

yep that describes perfectly what just happened today
THANK YOU FOR YOUR ATTENTION TO THIS MATTER
Yesterday 7:56:51 PM EDT
[#28]
Mill it for a red dot.
"I miss the days of being able to shoot all commies" G.B.
Yesterday 8:01:29 PM EDT
[#29]
Quote History
Originally Posted By colklink:



A former member, God rest his soul, 7mary3, had a hilarious definition of layaway I won't be sharing as to preserve my membership
View Quote View All Quotes
View All Quotes
Quote History
Originally Posted By colklink:
Originally Posted By eurotrash:
What is layaway?



A former member, God rest his soul, 7mary3, had a hilarious definition of layaway I won't be sharing as to preserve my membership


7M3 died only?  

Yesterday 8:16:57 PM EDT
[#30]
Without reading previous comments:

Pro:
It’s huge
It’s awesome
Possibility that you can get a shoulder holster for it
Possibility that you can get a shoulder holster for it AND your suppressor

Con:
For that money you could get 3 glocks or 2 USP 9c
Also huge
Holsters are going to be difficult
45 has been met or superseded via newer tech 9mm / higher magazine capacity
High likelihood  it will be a safe queen and you won’t enjoy it like you would enjoy myriad of other things you could have done with your $2k.
Yesterday 8:18:38 PM EDT
[#31]
Quote History
Originally Posted By ken_mays:
If the price is right, there’s not much I won’t buy.  I picked up a Mk23 a couple years ago, shot it once and put it in the back of the safe.  I don’t care anything about suppressing it, so no help there.
View Quote


I just realized that is the guiding principle of my entire life……hmmm.
a loaded gun won’t set you free, so you say…
Yesterday 8:28:36 PM EDT
[#32]
Mine shot incredible groups.
Yesterday 8:30:49 PM EDT
[#33]
I went a bit more practical and grabbed a Glock 21 to itch my suppressed 45 pistol itch

Still waiting on the barrel, 11 week wait for a threaded KKM
Yesterday 8:41:44 PM EDT
[#34]
Quote History
Originally Posted By cmeyer001:
Cause the HK45 or HK45C are better pistols?
View Quote


Get both.



Actually, get a lot.

"He had the right hand of the devil strapped tightly to his side."-The Last Cowboy
Yesterday 8:42:35 PM EDT
[Last Edit: colklink][Edited] [#35]
Quote History
Originally Posted By RiceBowl:


7M3 died only?  

View Quote



He was banned, and a few years later someone posted his obituary.

I've met cats and dogs smarter than Cory and Trevor.
Yesterday 8:45:30 PM EDT
[#36]
Because you hate shooting tight groups with negligible recoil?

As noted M16x1RH is uncommon thread pattern - thank Uncle Sniffles for that contract requirement to be RH threaded.
Yesterday 8:46:05 PM EDT
[#37]
Because they hate you and you suck?
Yesterday 8:48:25 PM EDT
[#38]
Quote History
Originally Posted By _Matt_:
I went a bit more practical and grabbed a Glock 21 to itch my suppressed 45 pistol itch

Still waiting on the barrel, 11 week wait for a threaded KKM
View Quote

I was just about to order one for my Glock 21 but not now!
THANK YOU FOR YOUR ATTENTION TO THIS MATTER
Yesterday 8:49:26 PM EDT
[#39]
I’ve got a P90L LEM and HK45C with a LEM kit for that yet to install.
If I saw a MK23 or any USP45 in the local used rack I’d probably pick it up too.
Good buy, OP.
Yesterday 8:50:13 PM EDT
[#40]
they're stupid and there is no real reason, which is exactly why you should have one in your collection. It's kind of like a desert eagle except you don't have to buy the spendy 50 AE ammo.
Yesterday 8:54:10 PM EDT
[#41]
Quote History
Originally Posted By akethan:
Mill it for a red dot.
View Quote


I did.

It's stupid accurate with an acro p2.
Yesterday 9:05:20 PM EDT
[#42]
Dewww etttttt

It’s just a cool ass gun, not practical, it’s heavy, as long as some PDWs but accurate as hell and nigh indestructible.

Attached File
Tax this dick. - Ben Franklin (probably)

SPC James 'Jimmy' Waters - D Co 1-32 3BCT 10th Mountain, KIA Sartak AFG 2011

SGT Shawn M Farrell II - A Co 1-32 3BCT 10th Mountain, KIA Nejrab AFG 2014
Yesterday 9:07:42 PM EDT
[#43]
Quote History
Originally Posted By _Matt_:
I went a bit more practical and grabbed a Glock 21 to itch my suppressed 45 pistol itch

Still waiting on the barrel, 11 week wait for a threaded KKM
View Quote

Familiarity and prolonged exposure without incident leads to a loss of appreciation of risk.
Yesterday 9:11:40 PM EDT
[#44]
Quote History
Originally Posted By akethan:
Mill it for a red dot.
View Quote



Hk parts has a mount that replaces the rear sight, for a rmr footprint. I just put one on mine. It fit up tight.
Yesterday 9:14:45 PM EDT
[#45]
You're going to love it. Yes, it's a big 45. But if it's anything like my USP45, it's just a tank that will run and run and run.

Stock up on mags. Expensive, yes. Worth it? Also yes. The Mark 23 is truly an end of the world sidearm.
Today 9:17:13 AM EDT
[#46]
Quote History
Originally Posted By eurotrash:
What is layaway?
View Quote

Kmart has it.
Today 9:21:55 AM EDT
[#47]
I have the complete set-up with a matching serial number KAC suppressor.

It’s a fist full of .45 for sure but easy to shoot, even with small, carny, hands like mine.
Life is short. If you are waiting for “someday”, it’s here!

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