[splukutum]

i read somewhere that an mp5k's cylinder may use a barrel length ranging from 110mm to 170mm while MP5-A4,A5,SD5,SD6's cylinders may use a range between 229mm to 430mm

what about the barrel length which has a length in between those measurements mentioned above (171m to 228mm)? what cylinder type would one use?

the reason i'm asking this is because i plan on installing a tight bore barrel longer than my mp5k pdw's stock barrel (141mm) and would prefer to retain my stock cylinder and maximize its use IF POSSIBLE.

thanks!