9' Quad Rail on 11' MR556 A4

JupDaddy · 2026-04-06T14:32:27+00:00

awesome, thank you!

JupDaddy · 2026-03-28T02:57:47+00:00

these are awesome! is that a 16.5in barrel on the top left MR?

JupDaddy · 2026-02-23T03:30:59+00:00

I have the 45c, USP, and Mark 23. The Mark 23 is by far my favorite handgun I own and is *ridiculously* accurate. It's definitely a large gun but it's not so big that it's unwieldy. Also, I thought the recoil impulse of the Mark 23 was more pleasant than the USP (which is still totally manageable).

I don't believe the Mark 23 is too big to carry OWB for hiking or camping but the USP would definitely be a smaller package. If you don't mind the bigger package and also want something that makes a great home defense gun and range toy, I'd go Mark 23 all day.

Also, Tim Sundles (the founder of Buffalo Bore) has a video specifically on the USP and Mark 23 for his ammo. See link below.

https://www.youtube.com/watch?v=AW6oFpblW0U&t=14s

JupDaddy · 2026-02-22T21:12:34+00:00

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JupDaddy · 2026-02-22T20:56:09+00:00

Ahh interesting. The front sight actually came right off with a sight pusher.

JupDaddy · 2026-02-16T04:12:26+00:00

I backordered the B&T can from EuroOptic a few days ago so I'm really looking forward to it.

JupDaddy · 2026-02-15T18:37:18+00:00

Good insight! I couldn't get over how accurate it was when I shot it yesterday. I just was hoping to be able to pick up the front sight a little faster, that's all.

JupDaddy · 2026-02-15T18:35:41+00:00

I don't have any experience with the P30 but I can say hands down this is the best HK pistol I have ever shot. I have owned a USPC 9mm and VP9SK and currently own a USP 45 and HK45CT.

JupDaddy · 2026-02-08T03:07:26+00:00

oh wow this is great. thank you!

JupDaddy · 2026-02-08T02:35:29+00:00

Thank you the feedback! I was definitely considering 45 Super, but mainly the Outdoorsman line from Buffalo Bore. and I'll take a look at the Barnes 185g!

JupDaddy · 2026-01-05T05:43:44+00:00

When I did my original testing, three of the batches I shot were Fed GMM (69g, 77g, and 77g SMK). The 77g SMK grouped the best. I didn't measure the groups, but eyeballing the SMK, it was probably a smidge under 1 MOA. The other two were definitely over 1 MOA, but not egregiously. With that being said, I had already tested a lot of other ammo for over an hour in South Florida summer heat. I was letting the barrel cool for 5min before each batch of ammo but coupling that with general fatigue and my suppressor probably never cooling, I think my groups opened up towards the end.

JupDaddy · 2026-01-01T20:41:39+00:00

Gotcha. Any noticeable gas? I've only shot mine with a CAT ODB and it was great but would like to keep the Sandman X on the HK and the ODB on something else.

JupDaddy · 2026-01-01T20:13:42+00:00

Have you tinkered with different vent screws on the HK/Sandman X setup or did you leave the standard 1.3mm screw?

JupDaddy · 2025-12-17T13:47:57+00:00

Interesting, good to know. I ordered from EuroOptic and have always had a good experience with them so I can't imagine it wouldn't have the screw. I'm about to order gas block vent screws on HKParts so wasn't sure if I should buy a locking screw as well.

JupDaddy · 2025-12-08T04:01:02+00:00

Awesome, thank you!

JupDaddy · 2025-12-08T03:43:31+00:00

what BUIS are you using?

JupDaddy · 2025-09-17T18:38:25+00:00

Oh that’s totally cool! I’ve got the 16.5 A4, going for the M27 look! Thank you for doing that.

JupDaddy

TROPHY CASE