OP,
The P229 platform of 90's vintage will accept the wide dual taper magazine for the 357/40 & will be rail less of which the frames were manuf in Germany & so marked on the RH side above the dust cover.
The 9x19 con-version Bbl will be marked 229-1 as are the magazines.
The P229 R is of Railed frame design & accepts the Bbls/mags listed above.
The M11-A1 is a Rail less P229 9x19 of wide mag well design.
P 229 Carry is of P228 Locking Insert configuration for 9x19 & uses P228 magazines.
The P228 is of 9x19 persuasion & has the narrow mag well that will accept P226 magazines.
The Locking insert & Bbl lug is different than the P229-1 9x19 Locking insert & bbl lug & are not drop in replacements.
Any P228/229/M11-A1 is capable of 22LR,9x19,357SIG,40S&W top ends since the Locking Inserts,Bbl lug & magazine upper taper.