Moving the Holosun SCS MOS between pistols
Page last updated . Data compiled September 2026 by the site administrator.
You already own it. Here is what changes from one slide to the next: the plate, the screw thread at each joint, the torque, the tools and any thread trap. 2 kinds of slide, covering 16 pistols, grouped by how the optic mounts and then alphabetically. Nothing is ranked. The Holosun SCS MOS page has its specs and the per-pair answers.
Mounts straight to the slide
GLOCK MOS — 10 mm / .45 frames
Direct Direct mount
4 slides: GLOCK 20 Gen5 MOS (10 mm), GLOCK 21 Gen5 MOS (.45), GLOCK 40 MOS (10 mm), GLOCK 41 MOS (.45)
- Optic → slide
- per SCS kitSupplied with the optic.
- Optic torque
- per Holosun manual
- Tools
- Torque wrench, Driver bits, Calipers, Degreaser, Witness-mark paint or lacquer
- To mount
- $300–450approximate street prices, September 2026
GLOCK MOS — standard & full size
Direct Direct mount
12 slides: GLOCK 19 Gen5 MOS, GLOCK 17 Gen5 MOS, GLOCK 45 Gen5 MOS, GLOCK 47 Gen5 MOS, GLOCK 49 Gen5 MOS, GLOCK 19X MOS, GLOCK 34 Gen5 MOS, GLOCK 26 Gen5 MOS, GLOCK 17 / 19 / 34 Gen4 MOS, GLOCK 22 / 23 Gen5 MOS (.40), GLOCK 35 Gen5 MOS (.40), GLOCK 44 MOS (.22 LR)
- Optic → slide
- per SCS kitSupplied with the optic.
- Optic torque
- per Holosun manual
- Tools
- Torque wrench, Driver bits, Calipers, Degreaser, Witness-mark paint or lacquer
- To mount
- $300–450approximate street prices, September 2026
Steps and safety: installing a red dot, from the makers' manuals. Mounting an optic is gunsmithing; confirm the pistol is unloaded first. Screw length is never listed here because it depends on the whole stack: each pair's build sheet has a calculator that works from your own caliper readings.