https://www.optics-trade.eu/en/riflescopes/crossbow-scopes.html

1. June, 2020Crossbow scopes

2. GENERAL FEATURES OF CROSSBOW SCOPES
•Compact and light,
•1-inch (25.4mm) tube,
•Objective lens diameter of 32–36 mm,
•Fixed or variable magnification,
•In variable magnification crossbow
scopes, max. Magnification does not surpass 8x,
•Parallax is fixed, mostly at 30 m of distance,
•Eye-relief suited for crossbow use (around 70 mm).
A crossbow with a mounted scope (source: sightmark.com)

3. RETICLES IN CROSSBOW SCOPES
•Dots or lines for the arrow drop (or both),
•Arrow is subjected to a huge drop even at close distances,
•A big portion of the reticle is illuminated (not just the centre).
An example of a crossbow scope reticle

4. MOUNTING ON CROSSBOWS
•The mounting platform (Picatinny rail) is located abovce the flight groove of the
crossbow,
•Attachment of the scope with two Picatinny rings,
•A scope allows the user to be much more accurate.