Bushmaster Xm15 Instruction Manual

39
OPERATION OF YOUR RIFLE…
INSERTING A MAGAZINE…
3.) Push Magazine up into Magazine Well
     until Magazine Catch engages and holds
     the Magazine.
4.) Tap upward on Magazine bottom to
     make sure its seated correctly.
40
OPERATION OF YOUR RIFLE …
CHAMBERING A ROUND with Bolt Assembly Open …
NOTE:  
2.) TAP the Forward Assist to ensure
     Bolt is fully forward and locked. 
1.) Depress upper portion of Bolt Catch.
     Bolt should spring forward.
BOLT CATCH
FORWARD ASSIST 

41
OPERATION OF YOUR RIFLE…
CHAMBERING A ROUND with Bolt Assembly Closed …
3.)TAP the Forward Assist to ensure
     Bolt is fully forward and locked. 
FORWARD
ASSIST
NEVER “ Ride ” (or push) the Charging
Handle. Let it move forward on its own.
2.) Release the Charging Handle.1.) Pull Charging Handle fully to rear.
NOTE: 
            is still on SAFE, and close the Ejection Port Cover to keep \
out dirt.
42
IMMEDIATE ACTION in case of trouble …
WARNING: DO NOT LOAD WITH A HOT CHAMBER. A ROUND MAY  “COOK...

43
IMMEDIATE ACTION in case of trouble (continued)…
3.) If cartridge or case is ejected or chamber
     is clear, RELEASE Charging Handle to
     feed a new round. Dont “ride ” the 
     Charging Handle forward.
4.) TAP Forward Assist.5.) Now FIRE. If the Rifle wont fire, look
     for trouble and apply remedial action.
     (See next page.)
44
REMEDIAL ACTION …
IF YOUR RIFLE STILL FAILS TO FIRE, CHECK THE TROUBLESHOOTING SECTION
IN THIS MANUAL - OR TAKE THE RIFLE TO A QUALIFIED GUNSMITH.
If your Rifle...

46
PROBLEMCHECK FOR:WHAT TO DO
45
1. Remove the Magazine
WARNING: If  an  audible  “POP”  or  reduced  RECOIL  is  experienced  during  firing,  

47
TROUBLESHOOTING (continued)…
PROBLEM
BOLT WONT  
UNLOCK
WONT  EXTRACT
CHECK FOR:
Dirty or burred Bolt.
Broken Extractor Spring.
Dirty or corroded Ammo.
Carbon in Chamber.
Fouling or carbon in  
Extractor recess or lip.
WHAT TO DO
Clean or see a qualified gunsmith.
See a qualified gunsmith.
Remove stuck round - push out 
with cleaning rod.
Clean Chamber.
Clean Extractor.
TROUBLESHOOTING (continued)…
PROBLEM
WONT FEED
CHECK FOR:
Dirty or corroded Ammo.
Dirty Magazine.
Defective Magazine.
Too many rounds...

CLEAN
TROUBLESHOOTING (continued)…
PROBLEM
WONT LOCK
WONT EXTRACT
CHECK FOR:
Dirt, corrosion, or carbon  
buildup in barrel locking  
lugs
Frozen Extractor.
Restricted Buffer  
Assembly.
Restricted movement of  
Bolt Carrier Group.
WHAT TO DO
Clean lugs.
Remove and 
clean.
Remove and 
clean.
Remove, clean, and lube.
(Before putting Bolt back in, make sure Gas  
Tube fits into Carrier Key and that the Carrier  
moves freely.)
50
49
TROUBLESHOOTING (continued)…
PROBLEM
WONT FEED
(continued)
DOUBLE FEED...

Check with Q-Tip/Pipe Cleaner
TROUBLESHOOTING (continued)…
PROBLEM
SHORT RECOIL  
(continued)
BOLT FAILS TO  
LOCK AFTER  
LAST ROUND
SELECTOR  
LEVER BINDS
CHECK FOR:
Q-Tip or Pipe Cleaner  
pieces stuck inside  
Carrier Key.
Dirty or corroded Bolt  
Latch.
Faulty Magazine
Needs oil.
Dirt or sand under  
Trigger.
WHAT TO DO
Clean out if possible or have Rifle checked by  
a qualified gunsmith.
Clean - or replace Bolt Catch.
Check for Buffer Endcap backout or  
obstruction.
Check for full travel of Bolt...

53
TROUBLESHOOTING (continued)…
PROBLEM
BOLT CARRIER  
“HUNG UP ”
CHECK FOR:
Round jammed between  
Bolt and Charging  
Handle and/or double  
feed
WHAT TO DO
1.) Remove Magazine.
2.) Push in on the bottom of the Bolt Latch.
3.) While pulling down on Charging Handle, 
4.) While Bolt is held to the rear, round should 
WARNING:
KEEP CLEAR 
OF MUZZLE.
CAUTION:
AFTER ROUND
IS REMOVED,
BOLT IS UNDER
TENSION.
NOTE: If this procedure fails, use a section of cleaning rod to 
             push the Bolt fully to...

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r e pla ce m ent  b y w rit in g to  B ush m aste r F ir e arm s,  In c.  9 99 R oosevelt  T ra il,  W in dham , 
M ain e 0 4062 U SA  o r b y c allin g 1 -8 00-8 83 -6 229 .  W hen re questin g a  m anual,   in clu de 
t h e  s e ria l  n um ber o f y o ur r if le .
T his  O pera tio n M anual  s h ould  a lw ays a cco m pany th is  fir e arm .  W hen y o u le nd ,  g iv e  o r 
s e ll  th is  fir e...

®
PLEASE PRACTICE SAFE FIREARMS HANDLING!
FUNDAMENTAL RULES FOR SAFE GUN HANDLING
®
ALWAYS KEEP THE GUN POINTED IN A SAFE DlRECTlON.
©1999 Bushmaster Firearms, Inc.