By Bob Walsh
The Gun of the Week this time around is the SIG 320 modular pistol.
This pistol was introduced in 2014 in 9mm, .357 SIG and .40 cal. Not quite one year later it was available in .45ACP. In 2017 the U. S. military went for this pistol in 9mm for its XM17 Modular Handgun System.
The pistol is very interesting in a couple of regards. There is a subunit called a Fire Control Unit which is the serialized part of the gun. The grip frames are not serialized and the basic grip frame is available in a standard, compact and sub-compact variation with the same fire control unit being moved from frame to frame. The pistol is easily adaptable from 9 mm to .357 auto to .40 auto. It is a striker fired pistol, which is not the norm for SIG. (The .45 ACP version is built on a different size format and is not interchangeable with the other pistols.)
The full-size variation weighs 29.4 ounces with an empty magazine inserted. The medium size variation (carry version) is 26 ounces. The subcompact weighs 25 ounces. The full-size pistol sports a 4.6 inch tube, the carry size 3.9 inches and the subcompact 3.6 inches. The polymer lower has three different grip sizes. The large size magazine holds 15 rounds of 9mm. the medium size holds 15 also, the subcompact holds 12 rounds.
The pistol does not normally have any manual safety. It is, however, available with it if desired as it is necessary for sale to the general public in many states. All models except the subcompact are built with an accessory rail on the dust cover for mounting a laser, light or whatever.
These have become an immensely popular weapon among the concealed carry crowd and it is making inroads in the police market, due largely to its adaptability. They did have a drop-safety issue that came to light which resulted in at least one large PD ordering its officers to stop carrying the gun. The issue has since been fixed. It seems that SIG probably has a winner here.