A Beautiful Factory Semiauto SIG MKPO (Ad-free)
Added 2025-02-24 12:00:05 +0000 UTCDuring the 1930s, SIG Neuhausen made a series of really beautiful submachine guns. They were the MK series, offered in either 500mm / 19.7 inch barrels for military use or 300mm / 11.8 inch for police use. The first pattern was the MK-O, which had a rate-reducing system built into the action (which looks initially much like a delayed blowback system but isn't). These proved too expensive, and a simplified plain high rate of fire model was introduced, the MK-S.
This example is a very rare factory semiautomatic model purchased and imported by Sam Cummings. The vast majority of the MK guns were fully automatic, but semiauto was a factory option, as police use was one of the intended markets.
Comments
you know what. that OAL looks about just right! "great quality..." short: typical swiss made. yeah the thing is gorgeous. I'd say 7,63 or the 9mauser.
Guido Schriewer
2025-02-24 20:49:45 +0000 UTCWell, you just gave me a "grail gun" to think about getting someday. Thanks, Ian! :D
Grumpy Conquistador
2025-02-24 19:11:55 +0000 UTCYour comments about "I don't think it means what they think it means" wrt the delayed blow-back system seem [to me, at least] to have overlooked your earlier statement that the particular carbine under review was chambered in the weakest of the options, 7.62 Luger [ie, something that only requires a blow-back recoil system.] The length of the back end of the locking piece you're indicating at 8:48 is the sole determinant of how much "locking" is going on: a longer tail on the locking piece means a shorter free-recoil throw of the entire bolt/locking piece system, meaning a long tail on the LP means more chamber support of the case, and more mechanical disadvantage to the carrier getting shoved back to unlock. Given a set of cartridges w/ the same OAL but widely differing chamber pressures, the only differences would be in the length of the tail on the locking piece and the barrel [chambering reamer.] Quite elegant, really!
Bruce Brodnax
2025-02-24 18:36:07 +0000 UTC“We need a submachinegun, but make it Art Deco.”
Plan9fromkansas
2025-02-24 17:38:04 +0000 UTC
