OWNERS MANUAL FOR 500®, 505™, 535™, 590® AND 835®®MODELS AND 590® 500®, 835 PUMP ACTION SHOTGUN SHOTGUNS IMPORTANT “SAFETY WARNINGS” - NOTE THE SYMBOL These safety warnings are for your protection as well as the safety of others. Disregarding information in this manual may result in serious injury or death. Be certain this owner’s manual is available for reference and is kept with this firearm if transferred to another party. If manual is lost or misplaced, contact Mossberg for a free replacement copy.
As the owner of a firearm, you must undertake the full-time responsibility of safe firearms handling for your own safety and the safety of those around you: • • • • • • • • • • Keep all firearms and ammunition out of the reach of children. Store your firearms and ammunition separately. Never store a loaded firearm. Never leave a loaded firearm unattended. Never transport a loaded firearm in a vehicle.
A note about the warnings and information contained in this Manual: We strongly suggest that you check with your local licensed retailer or state police for additional information concerning firearms ownership, or hunting or target shooting rules that may be required by local law or regulation. Since such rules and regulations are subject to change, local authorities are in the best position to advise you on such matters. TABLE OF CONTENTS Page Operating Instructions . ....................................
OPERATING INSTRUCTIONS Read and understand this entire manual and its safety warnings before handling this firearm. MECHANICAL SAFETY The safety button is located on the top rear portion of the receiver (Fig. 2) and must be manually moved to the desired position by the shooter. To put the safety in the “ON” (SAFE) position, the safety button must be moved fully rearward into the safety detent. The button will now cover the red dot.
BARREL ASSEMBLY Barrels are not interchangeable between model numbers, gauge or capacity. 500®, 505™, 535™, 590® and 835® barrels are interchangeable only with barrels of the same model, gauge and capacity. CAUTION: Never close the action or pull the trigger while the barrel is removed as damage could result to the firearm. To facilitate shipping, some models are packaged with the barrel removed.
CAUTION: The magazine spring exerts pressure on the retainer. Use caution when disassembling. To disassemble: Pry up at various points around the small hole in the center of the magazine spring retainer. Cup hand over retainer and magazine so as to keep spring and retainer confined. Use caution not to bend or distort the magazine tube end and or threads. 500®, 505™ and Slide the barrel into the receiver and tighten the takedown screw, finger 535™ Models: tight only.
LOADING Before loading, move the safety button fully rearward (Fig. 2) to the “ON” (SAFE) position. During loading, never allow fingers or any objects to contact the trigger. Keep the muzzle pointed in a safe direction at all times. Depress the action lock lever (Fig. 3) and open the action by pulling the forearm completely rearward.
LOADING MAGAZINE Load the magazine tube by turning the shotgun so that the trigger guard is facing up and the action is closed. Push the front end of the shell into the magazine tube until the rim of the shell snaps past the cartridge stop (Fig. 6 & 9). Never attempt to exceed the magazine capacity.
UNLOADING Move the safety button fully rearward to the “ON” (SAFE) position and keep the muzzle pointed in a safe direction while unloading the firearm. Depress the action lock lever (Fig. 3) and pull the forearm rearward, slowly, until the live shotshell is completely withdrawn and visible in the ejection port. Remove shotshell by hand. Continue pulling the forearm rearward to release the next shotshell onto the elevator.
590® and 835® Models: 500®, 505™ and 535™ Models: Unscrew the magazine cap by turning it counterclockwise. Remove the barrel from the receiver with a gentle back-and-forth rotational movement while pulling the barrel out of the receiver assembly. Loosen the takedown screw by turning it counterclockwise until the screw threads are completely disengaged from the end of the magazine tube (Fig. 7).
DISASSEMBLY OF INTERNAL RECEIVER COMPONENTS CAUTION: Pay special attention to the position of the bolt, bolt slide and action slide bar assembly during this portion of the disassembly, as the parts must be in the same relationship during reassembly. Remove the cartridge interrupter from the ejection port side and cartridge stop from the opposite side. (It may be necessary to tap the sides of the receiver lightly to release these parts) (Fig. 9).
Pivot the front portion of the elevator upward out of the receiver (Fig. 11-B). Squeeze the two arms which form the open end of the elevator assembly together sufficiently to disengage and remove the elevator from the receiver (Fig. 11-C). Remove the forearm/action slide assembly by sliding it forward and off the magazine tube. CAUTION: Field disassembly is now complete! The shotgun should not be disassembled further for routine cleaning or maintenance.
Be sure not to leave cleaning patches or excessive oil or grease in the bore as they can create dangerous obstructions. Obstructions of any kind can cause damage to the firearm and may result in serious personal injury to the shooter and/or others nearby. ACTION CLEANING Clean all components of the action including the bolt, bolt slide and action slide bars (Figure 11) to remove accumulated residue. An evaporating solvent should be used.
Position action bars so the notch on the bar is even with the cuts on the inside receiver walls (Fig. 13-A). The bolt slide should be positioned with the slotted side facing up, with notch to the rear (Fig. 13). Assemble the bolt slide, lowering the front of the bolt slide first. The bolt slide protrusion fits into the corresponding cut on the bottom of the bolt lock and action bar slots (Fig. 13-C). Hold the bolt slide down and pull the forearm assembly forward.
FUNCTION TESTING After performing any work on your firearm such as cleaning, disassembly or installation of any accessory, check your firearm for proper functioning before firing any live ammunition. a. Move the safety button fully rearward to the “ON” (SAFE) position and keep muzzle pointed in a safe direction. b. Open the action, visually and physically check chamber, elevator and magazine tube to be certain the firearm is unloaded. Depress and hold the action lock lever (Fig. 3).
GHOST RING® SIGHT ADJUSTMENTS MOSSBERG ACCESSORY BARRELS Accessory barrels are interchangeable only within specific model, gauge and magazine capacity. 500® Models: HS410™ barrels are not interchangeable with standard 500® .410 bore sporting barrels. PISTOL GRIP INSTALLATION BEFORE PERFORMING ANY DISASSEMBLY OR ASSEMBLY PROCEDURE: a. Move the safety button fully rearward to the “ON” (SAFE) position and keep muzzle pointed in a safe direction. b.
Installation of Pistol Grip: 1) Align mounting hole in pistol grip with threaded hole in rear of the receiver. 2) Slip washers on bolt. Insert bolt through pistol grip into hole in receiver. Finger tighten bolt to insure threads are properly engaged. If you encounter difficulty, unscrew bolt and repeat procedure. 3) Using Allen wrench supplied, tighten bolt very snugly. 4) To install the swivel stud, screw the stud into the hole on the left hand side of the pistol grip until tight.
4) Compress the springs into the tubes by pushing the pad flush against the stock. Adjust the pad until you feel the points of the screws fit into the pre-drilled holes in the stock. 5) While maintaining pressure on the pad, tighten the recoil pad screws securely. Do not overtighten screws. 6) Check for free movement of the followers by pushing them into the magazine tube with your finger and allowing them to snap back into position under spring pressure.
Whenever the heat shield barrel is removed from the shotgun, repeat the above steps 5-8 to insure that the shield is not preventing the barrel from being seated fully. 500® AND 590® MODELS 6-SHOT CUT AT 1 5/16” (A) 590 MODELS WITH ACCESSORY LUG CUT AT 1 7/8” (B) 590 MODELS WITHOUT ACCESSORY LUG, USE AS IS. DUAL - COMB® TROPHY STOCK BEFORE PERFORMING ANY DISASSEMBLY OR ASSEMBLY PROCEDURE: a. Move the safety button fully rearward to the “ON” (SAFE) position and keep muzzle pointed in a safe direction.
CARE & CLEANING: The precision threads on your choke tube should be kept clean and lightly oiled at all times. During cleaning of the barrel, be certain a choke tube is properly installed. This will avoid residue build-up on threads. Extra-Full choke tubes are not recommended for use with buckshot or slugs. The “Improved Cylinder” choke tube will usually produce the best accuracy with most slugs. ACCU-CHOKE™ TUBES ACCU-CHOKE™ TUBES - are designed for use with LEAD or STEEL shot.
ACCU-MAG™ CHOKE TUBES (835 MODELS ONLY) ACCU-MAG choke tubes are internal, flush fitting or extended choke tubes designed for use with LEAD or STEEL shot. Each durable tube is clearly marked, as a guide, with the lead and the steel shot pattern it will produce. To remove a choke tube from the muzzle of the barrel, loosen with the choke wrench provided, turning it counterclockwise. When choke tube is loosened, remove it completely with fingers. Put choke tube on a clean, dry surface.
ACCU-MAG™ ULTI-FULL™ TURKEY TUBE The NATIONAL WILD TURKEY FEDERATION has determined that the average distance at which turkeys are most effectively taken, under average environmental conditions and surroundings is 30 yards. Subsequently, Mossberg® designed and manufactures highly specialized choke tubes for #4 or #6 lead shot to yield a high shot concentration and pellet count in a 20 inch circle at 30 yards. Shot patterns at distances greater than 30 yards will be less dense.
SERVICE INSTRUCTIONS Should your firearm, or any component of your firearm require service, kindly ship your entire firearm (please do not send components only), via your chosen carrier, postage paid (we do not accept C.O.D. shipments) following these instructions: Make absolutely certain your firearm is unloaded. Do not send ammunition with your firearm. Remove all accessories from your firearm such as scopes, slings, swivels, mounts, etc.
MOSSBERG WARRANTY MOSSBERG ® ® ® ™ ™ ™ ® ® ® , 535 ,590 and 835835 MODEL SHOTGUNS 500500 , 505 , 535 , 590 and MODEL SHOTGUNS TEN TEN (10) (10) YEAR LIMITED WARRANTY Limited Limited Warranty: Warranty: O.F. O.F.Mossberg Mossberg&&Sons, Sons,Inc., Inc.
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28 *Restricted Item Limiting plug Retaining ‘O’ ring Magazine tube Action slide assembly Forearm Action slide tube nut Rifled barrel Front sight assembly Rear rifle sight assembly Magazine cap (model 590®/835®) Retaining washer Front swivel stud Heat shield Heat shield spacer Heat shield screw/nuts Speedfeed® stock Speedfeed® recoil pad Speedfeed® recoil pad screws Speedfeed stock bolt Lock washer Flat washer Stock swivel Q.D. post Speedfeed® followers Speedfeed® springs 25. 26. 27. 28. 29. 30. 31. 32.
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