He’s just picking on your choice of words. Don’t take offense, it’s kinda the price of admission.
waffenamts, show us all of these. full view of rifle’s right & left sides. From what you’ve shown us so far, it appears to be a rifle put together from parts of others, postwar. (very common) For us to tell you intelligently (hopefully why you’ve come here) what you have, we need to see EVERYTHING.
“Mauser” can have multiple meanings, it can refer to the design or be made at the Mauser main factory in Oberndorf am Neckar, like a “jeep” could have been built by Willys Overland Corp, or by Ford or GM.
now where to begin? multiple waa#s or e/#s indicate inspection & acceptance of a part or process, the 2nd (or 3rd, as on the right side of the receiver above the woodline) indicates acceptance of an assembly.
pic 2 showing the trigger guard, e/655 x 2, e655 was the inspector code after e63 team was sent to the Czech ‘protectorate’ to inspect rifles made at Brno/Brunn 1
pic of barrel code- 37 would be the year, Kp would be a code for the blank maker, 145 the lot number. Krupp made LOTS of war materiel, but I’m not sure they made barrels for model 98 rifles, they made “bigger guns”, submarines, tanks, ships. eagle/4 was the inspector for Berlin Suhler Werke, or BSW. typically there’s another pair of letters after the lot#, for the firm that turned the forged barrel blank into a finished barrel. (gundrilling & rifling being specialty operations)
pic after the barrel code is the rear sight sleeve, typically that lower case ‘l’ means the part was made by subcontractor Astrawerke, the script ‘E’ I’ll leave to others.
pic of top of bolt root: ‘5588’ is the sn of the rifle it came from, ‘x’ is the “block letter”, rifles were made in blocks of 10,000, starting in January of the year made (we want to see the top of the receiver) first block has no letter (no letter block) 2nd block is suffix ‘a’, then ‘b’, this one is ‘x’. If there’s a larger X on the receiver front ring, that indicates capture by russians. the stacked waas on the underside of the root tell us that the bolt body was inspected by e63, the assembly by e655, which makes chronologic sense.
back to the magazine follower: as previously stated, this is an ‘imperial’ part, ie ww1 Gewehr 98 part, reused later, at least once. looks like the last 2 digits were stamped out & restamped w/a new sn, & the corner for ‘hold open’ has been filed down. (in battle, it’s easy to miss that the magazine is empty, too much noise & you’re scared to death. the hold open corner makes it obvious that you need a new 5 round clip of ammo) this is a common mod for hunting rifle use.
broken record player but the more we see the more we can tell you.