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Part # BFIMANA2OP
Revision of 2005
PLEASE PRACTICE SAFE FIREARMS HANDLING!

BUSHMASTER OPERATING AND SAFETY INSTRUCTION MANUAL

For all BUSHMASTER XM15 and C15 Models

WARNING: BEFORE USING THlS FIREARM, READ AND FOLLOW THESE INSTRUCTIONS.

ABOUT YOUR BUSHMASTER RIFLE…

  • This Operating Manual covers all Bushmaster XM15 E2S and Carbon 15 models chambered for 5.56mm NATO/.223 Remington ammunition. They are lightweight, gas operated, air-cooled, magazine-fed rifles, carbines or pistols that are Semi-Automatic in operating mode (i.e., a single round will fire each time the trigger is pulled). Note: For Law Enforcement and Military markets, Bushmaster makes similar models in either Full-Automatic (continuous fire as long as the trigger is pulled) or Three Round Burst (a group of 3 shots will fire as long as the trigger is pulled) configurations. Sales of these models require special permits and are regulated by ATF.
  • On all models, the Upper And Lower Receivers are easily opened for cleaning and inspection. XM15 Models have forged aluminum Upper and Lower Receivers. Carbon 15 Models have Receivers that are injection molded from Carbon 15 Composite.
  • Most Bushmaster models feature fully adjustable rear sights / elevation adjustable front sights.
  • Barrels on XM15 and Carbon 15 Models are either chrome lined Chrome Moly Vanadium Steel or 416 Stainless Steel. They are usually button rifled 1 turn in 9” with a right hand twist - 6 lands and grooves. The Bolt Group locks into the Barrel Extension with 7 locking lugs.
  • All models can be configured with either 6 position Telescoping Buttstocks or solid A2 “Trapdoor” Buttstocks. Forends are of removable split design and are vented to allow heat dissipation. All models feature vertical pistol grips and detachable magazines. Magazine capacity is 30 rounds standard (depending on State Regulations), but all AR-15/M-16 Type magazines of capacities from 5 to 40 rounds will fit the Bushmaster and function in it.

Rifle Features & Controls - Identification / Location…

Typical Bushmaster XM15 E2S Rifle - 20" Bbl. with A2 Fixed Carry Handle

xm15_c15_01.png

Typical Bushmaster XM15 E2S A3 Type Rifle - “Flat-top” Upper Receiver w. 20" Barrel & Removable Carry Handle

xm15_c15_02.png

Bushmaster XM15 E2S M4 Type Carbine - 16" Barrel

xm15_c15_03.png

Note: ATF Regulations require a minimum barrel length of 16” on commercially available rifles and carbines. This 16” length can be a combination of barrel and permanently fixed (pinned & welded over) muzzle brake / flash suppressor as long as total length equals 16”.

Bushmaster Carbon 15 R97S Rifle

xm15_c15_05.png

 

NOTE: All Operating Controls on Carbon 15 Rifles and Pistols function the same manner as XM15 E2S Bushmaster models with Aluminum Receivers. Carbon 15 Safety Lever markings are red or white inset letters: S = SAFE (white letters on both sides of Receiver); F = FIRE (red letters on both sides of Receiver)

Bushmaster Carbon 15 P97S Pistol


xm15_c15_06.png

CLEARING YOUR RIFLE…

ALWAYS FOLLOW THE RULES OF SAFE GUN HANDLING. First, assume the gun you are handling is loaded, and then proceed - according to the following steps - to CLEAR YOUR RIFLE…

  1. Point Rifle in a SAFE DIRECTION! Place Safety Selector Lever on SAFE. NOTE: If the rifle is not cocked, the Safety Selector Lever cannot be pointed toward SAFE.
    xm15_c15_07-clearing-01.png
  2. Press Magazine Catch Button and pull Magazine down to remove.
    xm15_c15_08-clearing-02.png
  3. To Lock Bolt Open, Pull Charging Handle rearward. Press bottom of Bolt Catch and allow Bolt to move forward until it engages Bolt Catch. Return Charging Handle to forward. If you haven’t before, now place Safety Selector Lever on SAFE.
    xm15_c15_09-clearing-03.png

PREVENTATIVE MAINTENANCE CHECKS & SERVICES…

CHECK BEFORE YOU FIRE! …

  1. Check to see that there is NO EXCESSIVE OIL in the Bore. If there is, swab it out with a patch and the cleaning rod. ALWAYS CLEAN A NEW RIFLE BEFORE FIRING.
    WARNING!
    If the rifle is fired with oil - or water - in the barrel, excessive pressure will be created causing the rifle to explode.
  2. Retract the Bolt to ensure free movement between Bolt Carrier and Gas Tube.
    xm15_c15_10-preventive-01.png
  3. Perform Safety Function Check (below) to ensure that Safety Selector Lever works properly.

SAFETY FUNCTION CHECK…

UNLOAD RIFLE - REMOVE MAGAZINE - CHECK CHAMBER

  1. Remove Magazine if installed. Pull Charging Handle assembly to rear. Check that Chamber is clear. Let the Bolt and Bolt Carrier close. Do not pull Trigger. Leave Hammer in cocked position.
    WARNING: If Rifle fails any of the following tests, continued use of the Rifle could result in injury to, or death of, people around you.
  2. Place Selector Lever in SAFE position, point rifle ina safe direction, and pull Trigger.
    THE HAMMER SHOULD NOT FALL.
    xm15_c15_11-safety-01.png
  3. Place Selector Lever in FIRE position. Pull the Trigger. THE HAMMER SHOULD FALL.
    xm15_c15_12-safety-02.png
    NOTE:
    For purposes of the following check, “SLOW” is defined as one fourth to one half the normal rate of trigger release.
  4. Hold Trigger to the rear, pull Charging Handle to the rear and release Charging Handle. Then release pressure on the Trigger with a slow, smooth motion, without hesitations or stops, until the Trigger is fully forward.
    AN AUDIBLE CLICK SHOULD BE HEARD - THE HAMMER SHOULD NOT FALL.
  5. Repeat the FIRE position test FIVE TIMES. The Rifle must not malfunction during any of these five tests. If the Rifle malfunctions during any of these five tests, have the Rifle checked by a qualified gunsmith.

PREPARING TO FIRE - LOADING A MAGAZINE…

  1. Use only quality 5.56mm or .223 Remington Ammunition suitable for your firearm. Examine each Cartridge - particularly around the primer. Look for dents, scratches, and other signs of damage.
    DO NOT LOAD DAMAGED AMMUNITION!
  2. With the Magazine facing forward as shown in the illustration, place a Round between the Feed Lips of the Magazine with the Bullet Tip forward. Push the Round down until it is held by the Magazine Feed Lips.
    xm15_c15_13-preparing-01.png
  3. If necessary, give the Round a slight push backward to seat it against the inside back edge of the Magazine Feed Lips. Place next Round on top of the previous Round and repeat steps until desired number of Rounds are loaded into Magazine.
    CAUTION: Safe Firearms Handling dictates that you ONLY LOAD LIVE AMMUNITION INTO YOUR RIFLE WHEN YOU ARE ABOUT TO SHOOT.

OPERATION OF YOUR RIFLE… LOADING

CAUTION: ALWAYS POINT THE MUZZLE IN A SAFE DIRECTION!

  1. With the Hammer cocked, place Selector Lever on SAFE.
    xm15_c15_14-operation-01.png
  2. Open Bolt and check Firing Chamber. Make sure it is CLEAR!
    xm15_c15_15-operation-02.png

INSERTING A MAGAZINE…

  1. Return Charging Handle to forward, locked position. Push Magazine up into Magazine Well until Magazine Catch engages and holds the Magazine.
    xm15_c15_16-inserting-01.png
  2. Slap upwards on Magazine bottom to make sure it is seated correctly.
    xm15_c15_17-inserting-02.png

CHAMBERING A ROUND FROM AN OPEN BOLT…

NOTE: The Magazine may be inserted into the Rifle with the Bolt Assembly Open or Closed.

  1. Depress upper portion of Bolt Catch. Bolt should spring forward. This will chamber a round from the Magazine.
    xm15_c15_18-chambering-01.png
  2. TAP the Forward Assist with the heel of your hand to ensure that the Bolt is fully forward and locked.
    xm15_c15_19-chambering-02.png

RIFLE IS NOW READY TO BE AIMED AND FIRED!

CHAMBERING A ROUND FROM A CLOSED BOLT…

  1. With a Magazine in the Rifle, pull the Charging Handle fully to Rear.
    Then release the Charging Handle allowing the Bolt to spring forward - chambering the first round.
    xm15_c15_20-chambering-03.png
    NEVER “Ride” or push the Charging Handle forward (as depicted below). Let it move forward on its own.
    xm15_c15_21-chambering-04.png
  2. TAP the Forward Assist to ensure that the Bolt is fully forward and locked.
    xm15_c15_22-chambering-05.png

RIFLE IS NOW READY TO BE AIMED AND FIRED!

NOTE: If Rifle is not going to be fired immediately, make sure the Selector Lever is still on SAFE, and close the Ejection Port Cover to keep dirt out of the Chamber and Upper Receiver.

CONDITION: Rifle is now Loaded, a Round is Chambered, and Safety Selector should be on SAFE.

CAUTION: ALWAYS POINT THE MUZZLE IN A SAFE DIRECTION!

To FIRE the Rifle in SEMI-AUTOMATIC MODE (one Round fired with each pull of the Trigger), move the Safety Selector from SAFE to FIRE.

xm15_c15_23-operation-01.png

Aim at Target – Pull Trigger – Release.

The Rifle will automatically eject the spent Cartridge and chamber another in preparation for the next shot. The cycle of pulling the Trigger to shoot, and the Rifle automatically reloading, can be continued until the Magazine is empty.

NOTE: After the last Round is fired, the Bolt Carrier will lock in the rear position. You can then push the Magazine Release Button to drop out the empty magazine, insert a fresh Magazine, release the Bolt Catch, and a new Round will be automatically chambered in preparation for the next firing sequence.

alert.pngWARNING… IF A NOTICEABLE DIFFERENCE IN SOUND OR RECOIL IS EXPERIENCED, STOP FIRING.

Either condition could indicate an incomplete powder burn and/or a bullet stuck in the bore. Retract the Bolt slowly and remove the fired cartridge case. Clear the weapon and check for unburned powder grains in the Receiver or Bore, and for a Bullet stuck in the Bore. Clean out any unburned powder before resuming firing. If a Bullet is stuck in the Bore, do not attempt to remove it. Take the Rifle to a qualified Gunsmith.

IMMEDIATE ACTIONS — IN CASE OF TROUBLE!

IF YOUR RIFLE STOPS FIRING: Perform the following IMMEDIATE ACTIONS…

  1. SLAP upward on Magazine to make sure it is properly seated.
    xm15_c15_24-immediate-01.png
  2. PULL Charging Handle all the way back. Observe the ejection of the Case or Cartridge. Check Firing Chamber for any obstruction.
    xm15_c15_25-immediate-02.png
    alert.pngWARNING… DO NOT LOAD WITH A HOT CHAMBER – A ROUND MAY “COOK OFF”.
    “Cooking Off” means that a Round may Detonate (Fire) unexpectedly just from being exposed to the heat of the Rifle’s Firing Chamber.
  3. If Cartridge or Case is ejected, or Chamber is clear, RELEASE Charging Handle to feed a new Round. Don’t “ride” the Charging Handle forward.
    xm15_c15_26-immediate-03.png
  4. Tap Forward Assist to ensure Bolt is locked.
    xm15_c15_27-immediate-04.png
  5. Now FIRE.
    xm15_c15_28-immediate-05.png
    If the Rifle will not fire, look for trouble and apply the Remedial Actions described below.

REMEDIAL ACTIONS…

alert.pngWARNING: IF YOUR RIFLE STOPS FIRING WITH A LIVE ROUND IN THE CHAMBER OF A HOT BARREL, REMOVE THE ROUND FAST. However, if you cannot remove it within 10 seconds, remove the magazine and wait 15 minutes with the rifle pointing in a safe direction (always check that the “SAFE” direction remains safe during that time). This way you and those around you won't get hurt by the possibility of a round “cooking off”. KEEP YOUR FACE AWAY FROM THE EJECTION PORT WHILE CLEARING A HOT CHAMBER.

  1. If your Rifle still fails to fire after performing Immediate Action Steps 1 through 5 above, check again for a jammed cartridge case.
    xm15_c15_29-remedial-01.png
  2. If a cartridge case is in the chamber, open the receivers, remove the bolt carrier, and try to tap out the case with a cleaning rod.
    xm15_c15_30-remedial-02.png

IF RIFLE STILL FAILS TO FIRE, CHECK THE TROUBLESHOOTING SECTION IN THIS MANUAL – OR TAKE THE RIFLE TO A QUALIFIED GUNSMITH.

BULLET STUCK IN THE BORE…

alert.pngWARNING: IF AN AUDIBLE “POP” OR REDUCED RECOIL IS EXPERIENCED DURING FIRING, IMMEDIATELY CEASE FIRE: Then, (1.) Remove the Magazine, (2.) Lock the Bolt to the rear, (3.) Place the Selector Lever on the SAFE and (4.) visually inspect and/or insert a Cleaning Rod into the Bore to ensure there is not a Bullet stuck in the Bore.

  1. Remove the Magazine
    xm15_c15_31-bullet-01.png
  2. Lock the Bolt to the rear.
    xm15_c15_32-bullet-02.png
  3. Place the Selector Lever on SAFE
    xm15_c15_33-bullet-03.png
  4. Check for a Bullet in the Bore
    xm15_c15_34-bullet-04.png

DO NOT APPLY THE “IMMEDIATE ACTIONS” DESCRIBED ABOVE.

IF A BULLET IS STUCK IN THE BARREL OF THE WEAPON, DO NOT TRY TO REMOVE IT. TAKE THE RIFLE TO A QUALIFIED GUNSMITH.

FRONT SIGHT…

Adjustable for Elevation…

The Front Sight Post is threaded - allowing it to be moved up or down for Elevation Adjustments when “Zeroing” the Rear Sight (see “Zeroing Your Sights”). Once the Rear Sight is Zeroed, the Front Sight Post should not be moved.

xm15_c15_35-front-01.png

A2 DUAL APERTURE REAR SIGHT…

Adjustable for Elevation and Windage…

SHORT RANGE APERTURE: is used for ranges of 0 - 200 meters. In the illustration below, the sight is set to 0 - 200 meters. The larger aperture is only used when the 8/3 marking is aligned with the vertical mark on the left side of the upper receiver.

xm15_c15_36-a2-01.png

NOTE: For A3 sights on Removable Carry Handles (as on the “flat-top” model shown below), the dial setting will be marked 6/3 instead of 8/3.

xm15_c15_38-a2-03.png

NORMAL RANGE APERTURE: The smaller Aperture is unmarked and is used for most firing situations. It is used in conjunction with the Elevation Knob for 300, 400, 500, 600, 700, and 800 meter targets.

xm15_c15_37-a2-02.png

ZEROING YOUR SIGHTS…

By following the steps below to establish a Zero at 25 meters, your Bushmaster M16A2 Type Rifle Sights will be set with a 300-meter battlesight. With this procedure, only the Front Sight Post and Rear Sight Windage Knob are adjusted so that you can hit your Point of Aim at 300 meters.

xm15_c15_39-zeroing-01.png

25 METER ZEROING PROCEDURES…

For M16A2 Type Iron Rifle Sights

  1. Place an appropriate 25 Meter Paper Sighting Target 25 meters downrange and follow the steps below to establish a “battlesight” zero. Do not move the Front Sight Post at this time. It was set at the factory and should be very close to “Zero”. (Note: factory height setting is 5mm from “floor” of Front Sight Base to top of Front Sight Post).
  2. The smaller (unmarked) Rear Sight Aperture should be in the UP position. Center the Rear Sight by turning the Windage Knob left or right (the markings on back edge of the Rear Sight Base will help you). This creates what is called “Mechanical Zero Windage”.
  3. Lower the Rear Sight all the way down by rotating the Elevation Dial counterclockwise. Then rotate the elevation dial (clockwise) “UP” one click PAST the 300 Meter Mark (the mark above the 8/3 on the top of the Elevation Knob should align with the corresponding mark on the left side of the Upper Receiver). From this point on, the Elevation Knob should not be moved. Any changes in elevation required in the following zeroing steps will be made by raising or lowering the Front Sight Post only.
    NOTE: The A3 (Removable Carry Handle) Type Rifle Rear Sight differs in that its Elevation Index is marked 6/3 instead of 8/3. The vertical Elevation shaft of the A3 Sight is shorter - with finer thread pitch - giving it 1/2 Minute of Adjustment clicks instead of the 1 Minute of Adjustments of the A2 Sight. The A3 Elevation Dial must be moved 2 clicks up to the “Z” (Zero) mark. Otherwise, the Windage Components and Flip-up Aperture - and their operation - are the same as on the A2 Rear Sight.
  4. Check that your field of fire is clear, and that it is safe to shoot. Carefully aim and fire a group of three shots at the center of the target bullseye.
  5. Inspect your target - if your shot group is not in the center of the bullseye, the squares on the target sheet will help you calculate the required “clicks” necessary to move your next shot group toward the bullseye. (Remember! - any changes in elevation are to be made by moving Front Sight Post only.)
  6. If you need to raise your next shot group to get closer to the bullseye, rotate the Front Sight Post clockwise one click. A Front Sight Adjustment Tool (Part# RAY-005 - see Bushmaster Catalog or Website) is recommended for this but not necessary – the sight can be adjusted with the tip of a Bullet as shown at right. One click will move the the bullet strike point one vertical square on the target sheet. If you need to lower your next shot group, rotate the Front Sight Post counterclockwise. (One click - as before - equals one square.) Changes in Windage are made with the Windage Knob. (Three clicks will move the strike point of the Bullet one horizontal square on the target sheet.) To move the shot group to the left, turn the Windage Knob counterclockwise. To move the shot group to the right, turn the Windage Knob clockwise.
    xm15_c15_40-25-01.png
  7. Carefully aim and fire another group at the center of the target bullseye. Repeat Steps 6 and 7 as required to get your shot groups into the bullseye.
  8. Once your shot group is on target, your Sights are zeroed, or “calibrated”. To set your Rifle’s sights to a 300 meter zero, rotate the Elevation Knob one click “down” (2 clicks for the A3 Sight). The Range Scale’s 300-meter mark should now be aligned with the corresponding mark on the Receiver.)

FRONT & REAR SIGHT ADJUSTMENT…

FRONT SIGHT: To adjust elevation, depress detent and rotate post. To raise strike of bullet, rotate post in the direction of arrow marked UP. Reverse the direction of rotation to lower strike of Bullet. Each graduation (notch) moves the point of impact of Bullet as indicated.

IMPACT DISTANCE
0.9 cm (3/8 in.) 25 meters
3.5 cm (1 3/8 in.) 100 meters
7.0 cm (2 3/4 in.) 200 meters

REAR SIGHT ADJUSTMENTS… FOR WINDAGE KNOB (per click)*…

IMPACT DISTANCE
0.3 cm (1/8 in.) 25 meters
1.25 cm (1/2 in.) 100 meters
2.50 cm (1 in.) 200 meters
3.8 cm (1 1/2 in.) 300 meters
5.0 cm (2 in.) 400 meters
6.3 cm (2 1/2 in.) 500 meters
7.6 cm (3 in.) 600 meters
8.8 cm (3 1/2 in.) 700 meters
10.0 cm (4 in.) 800 meters

xm15_c15_41-front-01.png

xm15_c15_42-front-02.png

*AII the above values have been rounded off. To remember your correct zero windage, note location of
Windage Scale and Windage Knob Pointer (heavy mark on outside of knob). Once you have established your
correct zero windage leave your Windage Scale and Windage Knob Pointer on these settings at all times.

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