I've got a 5904 that is well worn finish wise, but mechanically sound. It is my current truck gun. Trijicon sights that will need replacing soon. It feeds everything I put through it. Currently I am using 124 gr +P Golden Saber. All but one of my mags are factory stainless. I put Wolff springs in it. It replaced my stainless SW9VE in my truck. I also use a 6906 withe the same ammo as my nightstand gun.

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S&W's M1917,10-10,5904,SW9VE