A Mystery MP-5 in .45ACP...Will it Run?
Added 2023-09-30 12:00:02 +0000 UTCThe fine folks at DSA had this rather mysterious MP5 in their reference collection, and we decided to take it out to the range to see if it would run. It's an MP-5, but chambered for .45ACP using altered M3 Grease Gun magazines. The original manufacturer is unclear; it's marked as being imported form Turkey, but does not appear to have been something that MKE made. So is it Pakistani? Or just someone's one-off project? I really don't know.
As for functioning, we found that only one of the magazines would work, and that only when downloaded to less than 10 rounds. It definitely has more recoil than a standard 9mm MP5, but is still pretty controllable...
Comments
I think you will find out that the gun is most likely ammo centric in that it prefers one flavor over another as I have discovered in my MPA-45-SST!!! ๐ค ๐
Paul Beck
2023-11-04 03:34:12 +0000 UTCIn an AR, the mags are sitting vertically, like they were designed in the M3. On this gun, they are at an angle, like regular MP5 magazines.
Forgotten Weapons
2023-10-06 16:15:27 +0000 UTCThe grease gun mags work just fine in an AR with a modified magwell although I donโt have a full auto
sean
2023-10-06 13:20:21 +0000 UTCI think the modified Greasegun magazine doesn't quite work for the thing. Maybe a .45 caliber MP5 could be done better using a UMP45 magazine instead.
Lance Thundercock
2023-10-04 01:36:54 +0000 UTCThe late Bill Fleming who passed in Dec '21 built a number of these in the early 90s and I purchased two for evaluation by the SEALs at NSWC Crane in approximately 1992.
Dutch Hillenburg
2023-10-03 14:59:08 +0000 UTCVery cool - would be interesting to see what would happen if they put the 10mm MP5 recoil spring in it
Mrgunsngear
2023-10-02 14:51:03 +0000 UTCLooks like another project that needs much more development time and effort.
EyeBall
2023-10-01 03:33:46 +0000 UTCBuild it and he will fire it.
2023-09-30 17:58:36 +0000 UTCViejoLobo, I disagree. ๐
2023-09-30 16:11:48 +0000 UTCA custom job by a fan of Jeff Cooper?
Fruitbat44
2023-09-30 15:07:47 +0000 UTCAnd if wanting an SMG in .45 ACP, the classic Thompson, M3 Grease Gun, UMP45, and other models that are specifically for this caliber are the practical options. As for my opinion, Iโll go for the original classic Thompson, and yes that the WW2 Thompson looks a lot like an MP5 in .45 ACP and it functions like a champ.
Paul Corpuz
2023-09-30 13:19:46 +0000 UTCIf the HK MP5 in .45 ACP were to function like a champ as the trusty 9 mm does, then it could have been designated as the HK55, the first 5 for SMG, and the second 5 for .45 ACP [11.43 x 23 mm], although never used in HKโs classic nomenclature.
Paul Corpuz
2023-09-30 13:13:47 +0000 UTC
