Addendum 2014

4.1.4 The M-LOK™ rail may not fit in the bottom, forward-most rectangular slots on the FN 15 DMR™ because the gas block will
interfere with the locking pieces of the rail. Additional M-LOK™ rails and accessories are available directly from Magpul®
(www.magpul.com
).
WARNING
Do not mount any sight, laser, or other device which interferes with normal operation of the rifle or extends beyond or in front of the
muzzle. Ensure any sight or device attached to this rail is firmly mounted.
CAUTION
Use care when disassembling the upper and lower receivers as described in Section 18.1 of your Owner’s Manual when the Midwest Industries
SSM™ rail is installed. Damage may occur to the rail and the lower receiver if done improperly. A pinch hazard may also be present.
4.2 Disassembly: FN does not recommend removing or disassembling the Midwest Industries, Inc. SSM M-LOK ™ for normal maintenance as it
is installed with retaining compound. It should remain attached to the upper receiver for normal maintenance.
When the rifle is disassembled as explained in Section 18.1, extra care should be taken when separating the upper and lower receivers.
Because of the mounting device on the rail, there is less clearance between the rail and the lower receiver. If the upper receiver is pivoted
on the front take-down pin as shown in Figure 20 of the Owner’s Manual, the rail may come in contact with the lower receiver causing
damage to the rail, the lower receiver and potentially pinching your hand. Please use caution.
5. Magpul® MBUS Pro™ Sights
Instructions for the attached Magpul® MBUS Pro™ Sights are packed with your FN 15™ DMR. Please follow these instructions and use caution
when installing, making adjustments to or removing the sights.
WARNING
Before making any adjustments to or removing the sights, lasers or other devices on the rifle, place the “safety” in the on safe position, remove
the magazine, open the action and ensure the chamber is empty as explained in Section 15.1 of your Owner’s Manual. Always keep the muzzle
pointed in a safe direction. Failure to follow these warnings may result in serious injury or death.
6. Magazine Notes
The FN 15™ is tested with aluminum GI pattern, mil-spec magazines to drop free. Other types of magazines, polymer or otherwise, may not
drop free if they do not meet mil-spec. for dimension.
The supplied Magpul® PMAG™ GenM3 magazine may not initially drop completely free from the magazine well. After repeated insertions, the
PMAG™ will begin to “wear-in” and may drop free when the magazine release is pressed. During this break-in period, the magazine may have
to be pulled from the magazine well in order to remove it.