Addendum 2017

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5. Carrier Bolt Assembly is Nickel-Boron (NiB) coated for improved function, lubricity wear resistance and is laser marked.
6. Mega Arms Ambidextrous Slide Lock.
7. Magpul® MOE-SL® collapsible butt stock, MOE® pistol grip for increased ergonomics.
8. Timney trigger for improved accuracy.
9. Magpul® GenM3 PMAG™ for longer life and increase durability.
WARNING
Before installing any 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.
3. Buttstock Adjustment
The Magpul® MOE-SL® Carbine Stock is installed on the FN 15™ Competition in place of the standard carbine buttstock. The MOE-SL® is a six-
position collapsible stock that has a special anti-rattle feature and additional sling mounting options.
3.1 Adjusting and locking the buttstock
To adjust the length of the buttstock assembly, depress the locking lever to unlock the butt stock. It can be pressed from each side of the stock.
Press the lever up and hold it as you move the buttstock forward or aft to the desired position. Release the locking lever and the stock should lock
into one of the six positions.
WARNING
Before manipulating or making any stock adjustments, 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 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.
4. Mega Arms Handguard
The MEGA ARMS™ 16” light weight free-float forearm/rail assembly is installed on the FN 15™ Competition in place of the standard round hand-
guards. The Mega Arms™ rail assembly extends over a low profile gas block. It allows for mounting of sights and optics. Additional M-LOK™ slots fill
the rest of the rail. M-LOK™ mounting accessories and options are available directly from Magpul®. (www.magpul.com) Please refer to your
individual accessory’s instructions for correct mounting instructions.
WARNING
Use care when disassembling the upper and lower receivers as described in Section 18.1 of your Owner’s Manual when the Mega Arms™ rail is
installed. Damage may occur to the rail and the lower receiver if done improperly. A pinch hazard may also be present.
4.1 Disassembly:
FN does not recommend removing or disassembling the Mega Arms rail 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