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AR15.COM
11/23/2025 12:04:08 AM EDT
....on a K245 lower hanging up when slide is all the way back. Suggestions?
11/23/2025 7:55:37 AM EDT
[#1]
Can you elaborate more? I purchased a full size and a compact a few months ago when PSA had them on sale. I’ve fired the full size without issues but have not taken the C model to the range.
“That’s not how it works. You buy more tools and power than you need and as you fuck everything up you gain the knowledge to become a better carpenter.”

Tveddy
11/23/2025 8:03:22 AM EDT
[#2]
Magazine?
11/23/2025 8:13:28 AM EDT
[#3]
Quote History
Originally Posted By Phillbilly:
Magazine?
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What I was thinking…
“That’s not how it works. You buy more tools and power than you need and as you fuck everything up you gain the knowledge to become a better carpenter.”

Tveddy
11/23/2025 10:59:43 PM EDT
[#4]
Quote History
Originally Posted By Curmudgeon762:
Can you elaborate more? I purchased a full size and a compact a few months ago when PSA had them on sale. I’ve fired the full size without issues but have not taken the C model to the range.
View Quote

Bought a full size. No issues racking slide or firing. Full size threaded barrels OOS. Went on SAR's website and ordered the compact slide, a threaded barrel, and the appropriate recoil rod/spring.
The compact slide hangs up when racking. No magazine in weapon.
Played around with it this PM. Might be tolerance stacking between the barrel and the slide. Unusual wear on the barrel and inside the slide. Oiled it up even more and worked the slide repeatedly.
Might have found the issue.
12/1/2025 6:17:01 PM EDT
[#5]
I finally got around to digging mine out and swapped slides etc between the two pistols. No issues that I can see as both seem to cycle the same without any indication of parts being poorly matched. That being said, both my standard and “compact” model have the SN on both the slide and frame. To me that indicates there is some degree of fitting the slides to the frames.


Really not much difference in size between the two.
“That’s not how it works. You buy more tools and power than you need and as you fuck everything up you gain the knowledge to become a better carpenter.”

Tveddy
12/8/2025 10:37:34 PM EDT
[#6]
Quote History
Originally Posted By Curmudgeon762:
I finally got around to digging mine out and swapped slides etc between the two pistols. No issues that I can see as both seem to cycle the same without any indication of parts being poorly matched. That being said, both my standard and “compact” model have the SN on both the slide and frame. To me that indicates there is some degree of fitting the slides to the frames. https://www.ar15.com/media/mediaFiles/563702/image-3668427.jpg


Really not much difference in size between the two.
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The difference between the two is SARUSA has K2C threaded barrels.....
1/3/2026 11:37:18 PM EDT
[#7]
Finally got it to the range. Functioned flawlessly with and without an omega45k. Already one of my favorite pistols. Now I need to research taller sites. ;)

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