Big Optics for Competition Practice
Train like a pro with the Sig Sauer P226 X-Five Open and BSA RD 42
By Dennis Adler
The BSA RD 42 adds a little more weight to counter the slide’s recoil and the much larger 42mm ocular lens is considerably faster to pick up for each successive shot. It makes the Sig Sauer P226 X-Five CO2 model a more accurate target pistol at 21 feet.
Most competitive shooters in Bianchi Cup, IPSC, USPSA, IDPA, and ISSF, (which includes 10 meter air pistol competition), will use optics on revolvers and semi-autos (depending upon the Division). The choices of optics vary from Mini Reflex sights, (which are mounted to the top of the slide on a recessed mount, or on an optics bridge), to larger red dot scopes. Mini Reflex sights have become the most popular, but many competitors still like the larger objective lens of a round red dot scope. Outside of competition shooting, Mini Reflex sights have also found their place in law enforcement, military and even civilian CCW use because of their small unobtrusive size. A growing number of semi-autos are also coming from manufacturers with modular optics systems (MOS) built in. The MOS design uses an interchangeable mounting platform that fits into a section of the slide that has been machined out. Competition gun builders call this a “melt.” It is intended to keep the optics mounting plate flush with the top of the slide, and thus lower the optics height to be more in line with the bore. While this is now the most often seen pistol design in Open Class Division shooting, many competitors, including some world champions, still defer to larger red dot scopes. In the last test of the Sig Sauer P226 X-Five Open, the gun was equipped with the Walther MRS, which is a reflex sight, though not as small as the C-More Systems STS used on the Tanfoglio Gold Custom in Airgun Experience No. 77. This time the combination will be the Sig Sauer P226 X-Five Open and BSA RD 42 red dot scope.