The Glock 27 is the .40 subcompact, a popular backup and carry gun, the 26's size with a heavier round. It recoils sharply for its size, and a sight picture that you pick up again quickly is the most useful upgrade you can give it.
Choosing sights
A fiber optic front is the fastest to see in daylight. Tritium vials glow at night, which suits a gun carried every day. Blank sets give a clean, plain picture. All are in Sights for Glock 27, with co-witness heights for MOS slides.
Plates
A MOS slide swaps its cover for a plate cut for your optic's footprint. Optics ready plates for Glock 27 covers small carry optics as well as full size ones.
Mounts
For slides without a cut, Red dot mounts for Glock 27 lists dovetail mounts. They take the rear sight's place, so the dot becomes your sight.
Frequently asked questions
Is a dot useful on a subcompact?
It removes the short sight radius problem and is quick to find once practised.
Do 26 sights fit the 27?
Many Glock sights fit both; check each product's model list.