Walther Model 9

The Walther Model 9 was a striker fired semi-automatic pistol produced by Walther arms and chambered in .25 ACP. The decision to use a striker vs. that of an internal hammer like on the Walther Model 8 was to reduce overall size of the gun, but sacrificed reliability. If the striker spring is compressed for extended periods of time it can weaken and not have enough force to ignite the primer causing a miss-fire.[2] This can be avoided by not keeping the pistol cocked when not in use. It has a 6 round detachable box magazine. The Model 9 is similar in size and function to the Baby Browning pistol which is only slightly larger. The Browning is also chambered in the .25 ACP cartridge.

Walther Model 9
A Walther Model 9 pistol with a loaded magazine and a 2 Euro coin
Type	Semi-automatic pistol
Place of origin	Germany
Production history
Designed	1921[1]
Manufacturer	Walther
Produced	1921-1945[1]
No. built	appx. 200,000
Specifications
Mass	9.2 oz (260 g)[1]
Length	3.9 in (9.9 cm)[1]
Barrel length	2 in (5.1 cm)[1]
Width	0.669291 in (1.70000 cm)[1]
Height	2.75591 in (7.0000 cm)[1]
Cartridge	.25 ACP[1]
Caliber	.25 (6.35 mm)
Action	Blowback-operated semi-automatic
Feed system	6-round magazine
Sights	fixed