Owner’s Manual 2020

9.4 LOADED CHAMBER INDICATOR

The 503 is equipped with a visual

loaded chamber indicator consisting

of a half round cut located in the

hood of the barrel directly in front of

the breach face. This allows the

operator to see the rim of a cartridge

through the cut if a cartridge is

present.

Note: The movement of the extractor

in the FN 503 is not sufficient to

readily determine whether or not the

pistol is loaded (Figure 30).

9.5 MAGAZINE

The FN 503 has a standard magazine

capacity of 6 rounds and is equipped

with witness holes along the side of

the magazine to allow for the

estimation of rounds remaining in the

magazine. An extended capacity 8

round magazine is also offered

(Figure 31).

Larger capacity FN 503 magazines

will function in FN 503 pistols

capable of accepting smaller capacity

magazines of the same caliber.

FN 503 magazines not specifically covered in this manual should be

covered by an addendum included with this manual or with the magazine.

If the magazine that you have is not covered in this manual or by an

addendum, information can be found on the FN website or by contacting FN

customer service.

FIGURE 30

FIGURE 31