Thanks for all the information! I took some measurements of my various Lugers. The 1900 at the round part of the magwell at the top is 0.446" wide. All my other Lugers are about 0.475" wide at the same point. The feedway to clear the magazine button total width of the magwell on the 1900 is 0.630" The other Lugers is about 0.668". The font on the "C" at the end of the serial number is not a font I've seen on other Lugers. I wonder when this gun was re-built if it was "force matched" to the magazine as it would actually fit in the gun. The magazine with it has the later staked in follower button. OK, the frame and magazine are # 1396C with a capital roman "C". The barrel is unnumbered. Barrel extension/upper receiver 78. Breechblock 83. Center toggle link 40. Rear toggle 18, Sideplate 54. Trigger (narrow trigger) 72. Grip Safety 10. If I break any parts on this gun the replacement may actually make the gun more matching.
|