Glock G17 Gen5 9mm vs Glock G47 Gen5 MOS 9mm

On paper these are the same gun in nearly every dimension. The Glock G17 Gen5 9mm and the Glock G47 Gen5 MOS 9mm both hold 17 rounds, both use a 4.49" barrel, both measure 7.95" long, 5.47" tall and 1.34" wide, and both list a 5.8 lb trigger and three magazines. Two things differ. The G47 is an MOS model and is cut for an optic, where this G17 Gen5 is not, and it carries a polymer white dot front and a white outline square-notch rear against the G17's fixed sights. The G47 is also 0.96 oz heavier (25.93 oz vs 24.97 oz) and lists a 6.65" sight radius against the G17's 6.5", a 0.15" difference.

Pick the Glock G17 Gen5 if:

• You are running irons and do not need an optic cut
• You want the lighter of the two by 0.96 oz (24.97 oz vs 25.93 oz)
• You want plain fixed sights rather than the G47's white dot and white outline

Pick the Glock G47 Gen5 MOS if:

• You plan to mount a red dot, since the G47 is optic ready and this G17 is not
• You want the marginally longer 6.65" sight radius for irons
• You want the white dot front and white outline square-notch rear from the factory

Capacity, barrel length, overall length, height, width and trigger pull are identical, so the optic cut is the decision. If a dot is going on the gun, the G47 is already cut for it; if not, there is nothing between them but 0.96 oz.