Beretta CX4 Instruction Manual
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73 FRONT SIGHT - ELEVATION ADJUSTMENT To raise the point of impact: Using the supplied tool(Fig. 4-Z)loosen the front sight clockwise. Proceed one click at a time. (Fig. 20) To lower the point of impact: Using the supplied tool (Fig. 4-Z)loosen the front sight counterclockwise. Proceed one click at a time. (Fig. 20) To fold the front sight, rotate it downwards. PEEP REARSIGHT For long range shooting, ver tically position the rearsight leaf with the letters LR (Long Range) with your finger. For shor t range shooting, rotate the LR leaf downwards to raise the rearsight leaf with the letters SR (Shor t Range). To completely fold the rearsight leaves, rotate them down towards the barrel. SIGHTING Point the carbine at the target you intend to shoot and aim by focusing the front sight through the hole of the rearsight leaf. Place the front sight on your target. The front sight should be in focus while the target slightly blurred or out of focus. Notice:It is recommended to hold the front sight during the adjustment in windage to avoid the front sight folding during the loosening of the screw.
74 FIRING WARNING: Only point a firearm at something safe to shoot. Never put your finger on the trigger unless you intend to shoot. Never disengage the safety on a firearm unless you intend to shoot. WARNING:Always wear high-quality eye and ear protection when firing any firearm. Be cer tain that others near-by are wearing high-quality eye and ear protection and are to the rear of the shooter, when firing any firearm. WHEN READY TO FIRE: •Load the firearm using the loading procedures above. •Point the carbine at the intended target. •Release the manual safety by simply pushing the manual safety button until the red band appears. WARNING:When the red band on the manual safety button is exposed, indicates that the safety is of f and the firearm is ready to FIRE! •When the sights are aligned on a SAFE target, place your index finger inside the trigger guard and gently squeeze the trigger, being careful not to upset the alignment of the front sight and the target. THE CARBINE WILL FIRE. The discharge will cause the bolt to recoil which, in turn, will eject the fired car tridge case, cock the hammer and compress the recoil spring. Then the bolt will automatically close, feeding the next car tridge from the magazine into the chamber. •After the first shot is fired, repeat this process to fire additional car tridges, or proceed to the unloading instructions. WARNING:THE CARBINE IS STILL CHAMBER LOADED, COCKED AND READY TO FIRE AGAIN. Keep your finger away from the trigger whenever you do not intend to fire and immediately engage the manual safety. ! ! ! !
75 •When the last round has been fired the bolt remains open. If you have completed shooting, engage the manual safety, remove the magazine and holding the cocking handle, press the bolt release lever downwards with your thumb and gently take the bolt to the closed position. Pull the trigger to decock the hammer. •To fire again, remove the empty magazine and inser t a loaded one. •If the bolt is in the open position press the bolt release lever downwards to inser t the round in the chamber. If the bolt has been closed, retract it by means of the cocking handle and immediately release the bolt to inser t the car tridge in the chamber. WARNING:THE CARBINE IS NOW CHAMBER LOADED, COCKED AND READY TO FIRE AGAIN. Keep your finger away from the trigger whenever you do not intend to fire and immediately engage the manual safety. WARNING: Always unload the firearm immediately after shooting is completed. Never store a loaded firearm. To store the carbine see the dedicated paragraph (Storing). If while firing the trigger is pulled and the firearm does not immediately fire: CEASE FIRING IMMEDIATELY! •Keep the firearm pointed in a SAFE direction in the event a “hang-fire” has occurred. A hang-fire occurs when there is a delay in a car tridge’s ignition. •With the carbine pointed in a SAFE direction, wait one (1) full minute. •After one (1) full minute has elapsed, completely unload the firearm by following the unloading instructions in this manual. •Carefully inspect your ammunition. •Immediately refer to a qualified gunsmith if the firing pin indent on a fired car tridge’s primer is light, of f-center or does not exist. ! !
76 •Using the disassembly instructions in the beginning of this manual under Obstruction Check, remove the frame-barrel/bolt assembly from the stock and visually check to be sure there are no obstructions in the barrel. If a barrel obstruction is detected, a qualified gunsmith must remove the obstruction and inspect the carbine before it can be fired. WARNING:If another car tridge is fired into an obstructed barrel, a catastrophic failure can result. WARNING: Never attempt to fire ammunition that did not fire the first time. If, while firing, you hear a change in the sound a fired car tridge makes, or feel a change in the amount of recoil of a fired car tridge, or detect any other irregularity: CEASE FIRING IMMEDIATELY! •Keep the firearm pointed in a SAFE direction. A “squib load” may have occurred. A “squib” occurs when a car tridge fires, but with insuf ficient force to drive the bullet out of the barrel. This can result in a dangerous bore obstruction. WARNING:If another car tridge is fired into an obstructed barrel, a catastrophic failure can result. •With the gun pointed in a SAFE direction, completely unload the firearm by following the unloading instructions in this manual. •Using the disassembly instructions remove the frame- barrel/bolt assembly from the stock and visually check to be sure there are no obstructions in the barrel. If a barrel obstruction is detected, a qualified gunsmith must remove the obstruction and inspect the carbine before it can be fired. •Carefully inspect your ammunition. WARNING: Never attempt to reuse or fire ammunition that did not fire the first time. Dispose of unfired or damaged ammunition properly, per the ammunition manufacturer’s recommendation. ! ! ! !
77 WARNING:Always unload the firearm immediately after shooting is completed. Never store a loaded firearm. To store the firearm see the dedicated paragraph (Storing). ! ! ! ! ! PICATINNY RAILS WARNING:Always be cer tain that the carbine is unloaded. Please refer to the instructions given in the ”Load check” paragraph. WARNING:Make sure the carbine is pointed in a safe direction. Under the barrel, inside the fore-end of the upper receiver, the standard Picatinny type rail supplied with your carbine can be extracted. (Fig. 2-S)To do so, push the front sling swivel and simultaneously extract the internal rail (Fig. 21). To mount the side Picatinny type rail included with your carbine, it is suf ficient to attach it with the two screws supplied into their respective seats. (Fig. 2-T)The rail can be mounted on both sides of the receiver (Fig. 22). Other optional Picatinny rails to mount on the top of the frame (MIL-STD-1913) (Fig. 23)and under the barrel (Fig. 24)are available on request. MOUNTING THE STOCK SPACERS WARNING:Always be cer tain that the carbine is unloaded. Please refer to the instructions given in the ”Load check” paragraph. WARNING: Make sure the carbine is pointed in a safe direction. Notice:It is advisable to disassemble the stock from the receiver/barrel/bolt assembly (see paragraph regarding disassembly). If you wish to mount additional spacers (available on request) on the stock in order to increase the length or to remove the one already mounted in order to decrease the length of the stock, proceed as follows:
78 •Remove the rubber recoil pad from the rear of the stock (Fig. 25). •Unscrew in a counter clockwise direction the rear screw from the stock with a 7 mm blade screwdriver (Fig. 26). •Completely remove the screw. •Remove the mounted spacer if you wish to shor ten the stock or add more spacers (available on request) to lengthen the stock. CAUTION:once the screw has been removed from the stock, the rear sling swivel (Fig.1/2-G)is not fixed to the stock. Take care not to lose it. •To remount the screw make sure to correctly centre the screw with the respective seat of the sling swivel. •Using the screwdriver, completely screw and tighten the screw in a clockwise direction on the stock. •Reassemble the rubber recoil pad.
79 REVERSING THE CONTROLS WARNING:Always be cer tain that the carbine is unloaded. Please refer to the instructions given in the ”Load check” paragraph. WARNING:Make sure the carbine is pointed in a safe direction. EXTRACTION, EJECTION AND COCKING HANDLE Notice:It is advisable to carr y out the field stripping and the assembly operations over a table to catch components should they drop. CAUTION:Before disassembling the par ts, carefully obser ve and memorize the position of the components to facilitate their correct reassembly. •Disassemble the bolt from the barrel sliding it from the receiver (See paragraph on disassembly). •Remove the retaining spring clip from the spring/spring guide assembly (Fig. 27). The operation can be facilitated by levering the spring/spring guide upwards. •Remove the ejector from its seat (Fig. 28). •On the opposite side, remove the extractor (Fig. 29). CAUTION:In order to inver t the ejection from one side to the other, it is necessar y to also inver t the position of the ejection por t cover located on the opposite side of the extractor. •To ease the procedure of inver ting the position of the controls, it is advisable to also remove the spring/spring guide assembly (Fig. 30). •Using a drift-punch or similar, gently push the cover from the open side of the ejection por t (Fig. 31)until the cover is completely removed. WARNING:The cover MUST always be mounted on the opposite side of the extractor in order to avoid possible mis-ejection of the case. ! !
80 •To remount the ejection por t cover on the side desired, take care to correctly inser t the two upper protrusions of the cover in their respective recesses on the bolt. •Mount the extractor on the opposite side paying attention to inser t its rear protrusion into the seat of the bolt(Fig. 32). •Inser t the ejector on the opposite side to the extractor as shown in Fig. 33. •Remount the spring/spring guide assembly if previously disassembled. •Push the retaining spring clip down into its seat(Fig. 34). •Once the bolt is reassembled onto the barrel line up the hole found on the bolt body with the rear par t of the cocking por t (circular par t) (Fig. 12)and inser t the cocking handle (with the concave par t facing the barrel) into the seat pushing it into the hole (right or left side) of the bolt. •Proceed with the rest of the reassembly as indicated in the dedicated chapter. MANUAL SAFETY BUTTON, MAGAZINE RELEASE BUTTON The above mentioned controls can be reversed from one side of the carbine to the other for right or left hand use. WARNING:Please contact a qualified gunsmith to reverse the manual safety and the magazine release buttons. WARNING:Do not attempt to alter the internal par ts of your carbine’s firing mechanism. Alterations to the hammer, trigger, springs, sear or other internal par ts can result in a ver y dangerous situation. WARNING:Altering the internal par ts of your carbine’s firing mechanism voids the manufacturer’s warranty. ! ! !
81 MAINTENANCE The firearm should be cleaned as soon as possible after firing. Use only high-quality, commercially-available firearm cleaning solvents and cleaning equipment. WARNING:Never store a loaded firearm. WARNING:The firearm should not be disassembled for cleaning beyond what is described below. Only a qualified gunsmith who is familiar with these firearms should conduct fur ther disassembly. WARNING:Do not attempt to alter the internal par ts of your carbine’s firing mechanism. Alterations to the hammer, trigger, springs, sear or other internal par ts can result in a ver y dangerous situation. WARNING:Altering the internal par ts of your carbine’s firing mechanism voids the manufacturer’s warranty. WARNING:Do not attempt to make repairs to any firearm without proper knowledge or training. Do not alter par ts or use substitute par ts not made by Beretta. Any alterations or adjustments that may be necessar y to the operating mechanism should be per formed by the Manufacturer or by its Local Of ficial Distributor. DISASSEMBLY WARNING:Always be cer tain that the carbine is unloaded. Please refer to the instructions given in the ”Load check” paragraph. Notice:It is advisable to carr y out the field stripping and the assembly operations over a table to catch components should they drop. CAUTION:before disassembling the par ts, carefully obser ve and memorize the position of the components to facilitate their correct reassembly. To disassemble the carbine, please refer to the instructions given in the disassembly paragraph in the “obstruction check” section. ! ! ! ! ! !
82 CLEANING WARNING:Excess oil and grease obstructing the bore, even par tially, is ver y dangerous when firing and may cause barrel rupture and serious injur y to the shooter and bystanders. Never spray or apply oil to the car tridges. Use lubricants properly. You are responsible for the proper care and maintenance of your firearm. BARREL •Spray a brush with Beretta oil or a good grade gun oil. Inser t the brush into the barrel by means of a rod from the chamber and scrub the chamber and bore thoroughly. If necessar y, first clean the bore with a gun solvent. •Dry the chamber and bore by pushing a cotton patch through the chamber and bore with the rod. Change the patch until it emerges clean. WARNING:Check the barrel to be sure there are no obstructions in the chamber and bore. •Lightly oil the inside of the barrel by passing through it a clean cotton patch soaked in Beretta oil or a good grade gun oil. •Lightly oil the outside of the barrel. BOLT •Clean the bolt with a patch and Beretta oil or a good grade gun oil, paying special attention to the breech face, extractor, ejector and to the bolt guides. If necessar y, use the brush. Wipe bolt sur faces with a clean patch. •Lightly oil the bolt. RECOIL SPRING AND SPRING GUIDE •Lightly oil the recoil spring and spring guide with Beretta oil or a good grade gun oil. After long use it could be necessar y to first scour these par ts using a brush.! !