SIG556 OM 12.06.qxp 1/8/2007 2:24 PM Page 1 SIG 556 SEMI-AUT OMATIC RIFLE 5.56mm NAT O (.223 Remington) READ THE INSTRUCTIONS AND WARNINGS IN THIS MANUAL CAREFULLY BEFORE USING THIS FIREARM; DO NOT DISCARD THIS MANUAL. For Product Service On This Model Please Call (603) 772-2302 SIGARMS Inc.
SIG556 OM 12.06.
SIG556 OM 12.06.qxp 1/8/2007 2:24 PM Page 1 State-By-State Warnings Certain states require, by law, that their own specified warning notices, in larger-than-normal type be conspicuously included by the manufacturer, distributor, or retail dealer with firearms sold in that state. SIGARMS, Inc. sells its products in compliance with applicable laws and regulations.
SIG556 OM 12.06.qxp 1/8/2007 2:24 PM Page 2 OWNERSHIP OR POSSESSION OF A FIREARM TO A MINOR OR A PERSON OF UNSOUND MIND.” MAINE: “ENDANGERING THE WELFARE OF A CHILD IS A CRIME. IF YOU LEAVE A FIREARM AND AMMUNITION WITHIN EASY ACCESS OF A CHILD, YOU MAY BE SUBJECT TO FINE, IMPRISONMENT OR BOTH. KEEP FIREARMS AND AMMUNITION SEPARATE. KEEP FIREARMS AND AMMUNITION LOCKED UP. USE TRIGGER LOCKS.” MARYLAND: “WARNING: Children can operate firearms which may cause death or serious injury.
SIG556 OM 12.06.qxp 1/8/2007 2:24 PM Page 3 “IT IS UNLAWFUL TO STORE OR KEEP A FIREARM, RIFLE, SHOTGUN OR MACHINE GUN IN ANY PLACE UNLESS THAT WEAPON IS EQUIPPED WITH A TAMPER RESISTANT SAFETY DEVICE OR IS STORED OR KEPT IN A SECURELY LOCKED CONTAINER.” NEW JERSEY: “IT IS A CRIMINAL OFFENSE TO LEAVE A LOADED FIREARM WITHIN EASY ACCESS OF A MINOR.” NEW YORK CITY, NY: “THE USE OF A LOCKING DEVICE OR SAFETY LOCK IS ONLY ONE ASPECT OF RESPONSIBLE FIREARMS STORAGE.
SIG556 OM 12.06.qxp 1/8/2007 2:24 PM Page 4 WISCONSIN: “IF YOU LEAVE A LOADED FIREARM WITHIN THE REACH OR EASY ACCESS OF A CHILD YOU MAY BE FINED OR IMPRISONED OR BOTH IF THE CHILD IMPROPERLY DISCHARGES, POSSESSES, OR EXHIBITS THE FIREARM.” ********************* Please check with your licensed retailer, state police, or local police for additional warnings which may be required by local law or regulation.
SIG556 OM 12.06.qxp 1/8/2007 2:24 PM Page 5 TABLE OF CONTENTS Topic Page State-By-State Warnings Locking Device General Safety Information and Mechanical Characteristics 1.0. Safety Rules 1.1. Protect Your Eyes And Ears 2.0. Mechanical Characteristics and Weapon Theory 2.1. Weapon Description 2.1.1. General 2.1.2. Barrel With Receiver And Gas System 2.1.3. Bolt 2.1.4. Hand Guards 2.1.5. Trigger Casing Assembly And Butt Stock 2.1.6. Gas Valve Position 2.1.7. Butt Stock Operation 2.1.8.
SIG556 OM 12.06.qxp 1/8/2007 2:24 PM Page 6 To Unload Magazine and Rifle 31 5.0. Unloading 31 To Extract and Eject a Chambered Cartridge . 35 To Clear a Malfunction (“Jam”) 36 6.0. Procedures In Case Of Malfunction 36 To Minimize Malfunctions (“Jams”) 38 To Disassemble 38 7.0. Field Strip Disassembly 38 To Reassemble 42 7.1. Reassembly 42 7.2. Function Check 45 Magazine Inspection and Care 46 Care and Cleaning 47 Storage . 47 Sight Adjustment 48 8.0. Sight Options 48 Maintenance 49 9.0.
SIG556 OM 12.06.qxp 1/8/2007 2:25 PM Page 7 WARNINGS OF GREAT IMPORTANCE ARE FOUND ON THE FOLLOWING PAGES: Locking Devices Alterations Manual Safety Lead Exposure Ammunition Loading 4 7 18 23 23 24 Handling Handling Firing Unloading Storage Parts Purchasers 24 33 33 35 48 51 OTHER CAUTIONS AND WARNINGS APPEAR THROUGHOUT THE MANUAL FIREARMS ARE DANGEROUS WEAPONS — READ THE INSTRUCTIONS AND WARNINGS IN THIS MANUAL THOROUGHLY AND CAREFULLY BEFORE USING.
SIG556 OM 12.06.qxp 1/8/2007 2:25 PM Page 8 GENERAL SAFETY INFORMATION AND MECHANICAL CHARACTERISTICS 1.0. Safety Information The safety warnings in this manual are important. By understanding the dangers inherent in the use of any firearm, and by taking the precautions described herein, you can enjoy complete safety in the use of your rifle. Failure to heed any of these warnings may result in serious injury to you or others, as well as severe damage to the firearm or other property. SIGARMS, Inc.
SIG556 OM 12.06.qxp 1/8/2007 2:25 PM Page 9 firearm in normal use. Without ear protection, repeated exposure to shooting noise may lead to cumulative, permanent hearing loss. 2.0. Mechanical Characteristics And Weapon Theory 2.1. Weapon Description 2.1.1. General The SIG 556 Rifle is a semi-automatic, gas operated weapon, with a rotary bolt mechanism. Semi-automatic means one round will fire each time the trigger is pulled until the magazine is emptied of ammunition. The rifle is chambered in 5.
SIG556 OM 12.06.qxp 1/8/2007 2:25 PM Page 10 2.1.3. Bolt The bolt consists of two main parts: • Bolt Carrier • Bolt Head a. Bolt Carrier: The bolt carrier guides the bolt head, controls the locking and unlocking by means of the cam, holds the operating rod, and cocks the hammer. b. Bolt Head: The bolt head locks the bolt assembly, houses the firing pin and extractor and feeds the cartridges from the magazine to the chamber. 2.1.4.
SIG556 OM 12.06.qxp 1/8/2007 2:25 PM Page 11 2.1.5. Trigger Casing Assembly And Butt Stock The trigger casing assembly contains the internal components of the firing and safety mechanisms, bolt catch, magazine well, magazine release, and butt stock assembly. The safety lever, located on both sides of the trigger casing, can be set to two positions: • Position "S:" The weapon is locked in the safe position. • Position "F:" The weapon will fire in the semi-automatic mode.
SIG556 OM 12.06.qxp 1/8/2007 2:25 PM Page 12 The trigger guard may be released from its normal position to make the trigger accessible for shooting with gloves. For safety reasons the trigger guard must not be released until just before firing the weapon, and after firing should be immediately returned to the normal (closed) position. CAUTION: Be careful of accidental discharges when inserting gloved fingers into the trigger guard.
SIG556 OM 12.06.qxp 1/8/2007 2:25 PM Page 13 b. Position 2 (Rib of gas valve in the slanted position). When cycling or ejection problems are encountered due to heavy fouling, the gas valve can be moved to Position 2 by rotating clockwise as far as the stop. In this position, a larger gas volume is released against the operating rod. The need to utilize the gas valve in Position 2 is an indication that the rifle requires cleaning.
SIG556 OM 12.06.qxp 1/8/2007 2:25 PM Page 14 3. To remove the butt stock, pull down on the adjusting latch and remove the stock from the receiver extension. 3. The butt stock features a battery storage compartment, which is accessed by peeling the butt pad off the stock at the 12 o’clock position. The pad is attached to the stock by a rivet at 6 o’clock. 4. The butt stock features two (2) sling attachment points. 2.1.8. Trigger Guard Operation 1.
SIG556 OM 12.06.qxp 1/8/2007 2:25 PM Page 15 3. When glove access is no longer required, rotate the trigger guard back into place, depressing the spring loaded pin and ensure the trigger guard is locked closed. WARNING: Do not manipulate the trigger guard unless the rifle’s safety lever is on “S” (SAFE) and confirmed unloaded! 2.1.9. Sights The SIG 556 rifle features integrated accessory mounting rails on the upper receiver and hand guards.
SIG556 OM 12.06.qxp 1/8/2007 2:25 PM Page 16 2.1.10. Magazine The rifle ships standard with (1) 30-round magazine. The SIG 556 is compatible with M16/AR-15 type magazines. 2.2. Technical Specifications Caliber Total length Length with stock collapsed Barrel length Number of grooves Rifling Weight (w/out mag) 5.56mm NATO (.223 Remington) 37 inches 33.5 inches 16 inches 6 1 in 7 7.8 lb Specifications are approximate and subject to change without notice. 2.3.
SIG556 OM 12.06.qxp 1/8/2007 2:25 PM Page 17 OPERATION OF SAFETY The SIG 556 has a manual safety which is located on the left and right side of the trigger casing, just forward of the pistol grip and above the trigger. The safety levers may be operated from either side. The safety is “on” when the safety lever is in the “S” (SAFE) position and the trigger guard is closed. In this position, the rifle cannot be fired with a normal pull of the trigger.
SIG556 OM 12.06.qxp 1/8/2007 2:25 PM Page 18 Manual Safety “on” Manual Safety “off” WARNING - MANUAL SAFETY Keep the safety “ON” unless actually firing. Always move the safety to its intended position and check it. The safety is not “ON” unless it is completely “ON.” Never depend on a safety mechanism or any other mechanical device to justify careless handling or permitting the rifle to point in an unsafe direction.
SIG556 OM 12.06.qxp 1/8/2007 2:25 PM Page 19 Bolt Catch Lever The SIG 556 rifle is equipped with a bolt catch lever. The purpose of the bolt catch lever is two-fold. The bolt catch may be manually engaged with the bolt pulled to the rear (open position). This action locks the bolt open, allowing an unobstructed view of the chamber area.
SIG556 OM 12.06.qxp 1/8/2007 2:25 PM Page 20 AMMUNITION 1. Use only high quality, original, factory-manufactured ammunition. Do not use cartridges that are dirty, wet, corroded, bent, or damaged. Do not oil cartridges. Do not spray aerosol-type lubricants, preservatives, or cleaners directly onto cartridges or where excess spray may flow into contact with cartridges. Lubricant or other foreign matter on cartridges can cause potentially dangerous ammunition malfunctions.
SIG556 OM 12.06.qxp 1/8/2007 2:25 PM Page 21 3. Firearms may be severely damaged and serious injury to the shooter or to others may result from any condition causing excessive pressure inside the chamber or barrel during firing. Excessive pressure can be caused by obstructions in the barrel, propellant powder overloads, the use of incorrect cartridges or defectively assembled cartridges.
SIG556 OM 12.06.qxp 1/8/2007 2:25 PM Page 22 first bullet further into the bore. 6. If there is any reason to suspect that a bullet is obstructing the barrel, immediately unload the firearm and look through the bore. It is not sufficient to merely look in the chamber. A bullet may be lodged some distance down the barrel where it cannot easily be seen.
SIG556 OM 12.06.qxp 1/8/2007 2:25 PM Page 23 propellant powder; on firing, the powder may not ignite. If only the primer ignites, there is danger that the bullet may become lodged in the barrel. WARNING - AMMUNITION Death, serious injury, and damage can result from the use of wrong ammunition, bore obstructions, powder overloads, or incorrect cartridge components. Always wear shooting glasses and hearing protectors.
SIG556 OM 12.06.qxp 1/8/2007 2:25 PM Page 24 TO LOAD AND FIRE (WITH MAGAZINE) 3.0. Handling 3.1. Important Instructions • • • • • • • Before manipulating the weapon, ensure the safety lever is in the “S” (SAFE) position and the trigger guard is in the closed position. Use only factory-new ammunition which corresponds to the caliber of the weapon. During all manipulations of the rifle, point the weapon in a safe direction.
SIG556 OM 12.06.qxp 1/8/2007 2:25 PM Page 25 3.2. Loading The Weapon 1. Ensure the safety lever is in the “S” (SAFE) position; 2. Insert the magazine and check that it is properly seated; 3. Bolt forward: Pull the charging handle back fully and release; or 4. Bolt locked open: Depress bolt catch fully to release bolt. WARNING DO NOT LOAD A RIFLE WITH A HOT CHAMBER BECAUSE A ROUND MAY “COOK” OFF (i.e.
SIG556 OM 12.06.qxp 1/8/2007 2:25 PM Page 26 3.4. Changing The Magazine 1. Ensure the safety lever is in the “S” (SAFE) position; 2. Remove the magazine by depressing the magazine catch; 3. Insert loaded magazine and check that it is properly seated. 3.5. Reloading (Rifle Empty, Bolt Locked Open) 1. Ensure the safety lever is in the “S” (SAFE) position; 2. Remove the empty magazine by depressing the magazine catch; 3. Insert a loaded magazine and check that it is properly seated; 4. Release the bolt: a.
SIG556 OM 12.06.qxp 1/8/2007 2:25 PM Page 27 shooting range). Enclosed areas frequently offer no completely safe direction to point the firearm; if an accidental discharge occurs, there is great risk of bodily injury or property damage. Before loading, always clean all grease and oil from the bore and chamber, and check to be certain that no obstruction is in the barrel.
SIG556 OM 12.06.qxp 1/8/2007 2:25 PM Page 28 WARNING: DO NOT TOUCH THE TRIGGER UNTIL YOU ARE ACTUALLY READY TO FIRE THE RIFLE 4.1. Firing • • By depressing the trigger (11) the hammer (7) is released. The hammer, under tension from the main spring (12), strikes the firing pin (10) which impacts the cartridge primer (P). Caution: Immediately following the firing of a shot, if a subsequent shot is not fired at once, put the safety lever in the “S” (SAFE) position and point the rifle in a safe direction.
SIG556 OM 12.06.qxp 1/8/2007 2:25 PM Page 29 4.1.1. Unlocking Of Bolt, Extraction, & Ejection • • • The gas pressure, generated by the burning powder, drives the bullet up the barrel (13). As soon as the projectile passes the gas port (15), propel lant gas flows through the adjustable gas valve (14). The gas pressure acts on the operating rod (1) which push es the bolt carrier (4) to the rear. SIG 556 Operators Manual 29 P/N 1511203 VER 12.7.
SIG556 OM 12.06.qxp 1/8/2007 2:25 PM Page 30 • During the rearward motion of the bolt carrier (4), the bolt head (5) is rotated by the control cam (3) so that the lock ing lugs (8) are disengaged. The bolt is now unlocked.
SIG556 OM 12.06.qxp • • 1/8/2007 2:25 PM Page 31 In the final stage of the advance, the bolt head (5) locking lugs, via the cam, rotate and lock within the monoblock. The weapon is ready to be fired. SIG 556 Operators Manual 31 P/N 1511203 VER 12.7.
SIG556 OM 12.06.qxp 1/8/2007 2:25 PM Page 32 Keep the muzzle pointed in a safe direction and your finger away from the trigger when cocking any firearm. Never carry or leave unattended any firearm which is cocked and ready to fire! When cocked, it could fire from slight pressure on the trigger. An accidental discharge could easily result if you fall or drop the firearm, or if the firearm is struck or disturbed by someone or something.
SIG556 OM 12.06.qxp 1/8/2007 2:25 PM Page 33 and lock it to the rear by pushing up the slide catch. The jammed cartridge or case now can be removed by shaking it out or picking it out. WARNING - FIRING The bolt automatically opens and shuts quickly while firing. Keep face and hands away from it. Hot brass and powder gas is ejected quickly and can burn you. The rifle should be fired from the right shoulder. Always wear shooting glasses and hearing protectors.
SIG556 OM 12.06.qxp 1/8/2007 2:25 PM Page 34 TO UNLOAD MAGAZINE AND RIFLE 5.0. Unloading 1. Ensure the safety lever is in the “S” (SAFE) position. 2. Ensure bolt is locked open (chamber visible); 3. Remove magazine by depressing the magazine catch; and 4. Verify the chamber is empty, both visually and physically. Always make sure the muzzle is pointed in a safe direction! Remember to clear the chamber after the magazine has been removed.
SIG556 OM 12.06.qxp 1/8/2007 2:26 PM Page 35 WARNING - UNLOADING Removing cartridges from the magazine does not prevent the rifle from being fired! When there is a cartridge in the chamber and the safety lever is in the “F” (FIRE) position, the cartridge will discharge if the trigger is pulled. It is absolutely essential for the user to know how to completely unload the rifle. “Completely” means emptying the magazine and removing a chambered cartridge.
SIG556 OM 12.06.qxp 1/8/2007 2:26 PM Page 36 when being operated by hand, the extracted cartridge can be “ejected” into the magazine area instead of outside the rifle. (Remember that the magazine should be removed prior to unloading the chamber.) 2. Thoroughly clean the chamber and the extractor as often as necessary to prevent accumulation of grease and dirt. 3.
SIG556 OM 12.06.qxp • • 1/8/2007 2:26 PM Page 37 Release bolt; and Place safety lever in the “F” (FIRE) position, continue firing. If the weapon still will not fire: • Put safety lever in the “S” (SAFE) position; • Unload per section 5.0; • Clean weapon per section 9.1; • Load; and • Place safety lever on position “F” (FIRE), and continue firing. If the rifle malfunction cannot be corrected, the rifle should be returned to SIGARMS, Inc. for evaluation by a factory trained technician.
SIG556 OM 12.06.qxp 1/8/2007 2:26 PM Page 38 jams, or binds when being chambered or when fed from the magazine into the chamber, do not attempt force it into the chamber by pushing or striking the charging handle. Any jam or feeding problem is a signal to immediately stop using the rifle until the issue can be determined. Most failures of a cartridge to feed or to chamber are caused by a damaged magazine, improper handling, or defective ammunition.
SIG556 OM 12.06.qxp 1/8/2007 2:26 PM Page 39 4. Remove the pivot pin (forward pin): unscrew the pivot pin screw (left side) and remove the pivot pin from the trigger casing; 5. Separate the trigger casing from the receiver; 6. Depress the charging handle catch and remove the charging handle; 7. Using the charging handle, push the bolt carrier assembly to the rear and remove it from the receiver; 8.
SIG556 OM 12.06.qxp 1/8/2007 2:26 PM Page 40 10. Lift upper hand guard at the rear and pull away from gas block; 11. Depress the stop pin and hold. Rotate the gas valve to the left and pull forward to remove; 12. Push the operating rod assembly forward and remove from the gas tube; 13. Depress the stop pin and rotate the gas tube to the left ninety degrees (90°) until the gas tube notch faces the barrel; 14. Remove the gas tube from the gas block; 15. Remove the firing pin: a.
SIG556 OM 12.06.qxp 1/8/2007 2:26 PM Page 41 b. Remove the firing pin stud using an aid (small punch, nail, or pencil) and SLOWLY raise the bolt head until tension is released on the firing pin spring; and c. Remove firing pin and firing pin spring from the bolt head. CAUTION: The firing pin is under spring tension when installed in the bolt head. Use caution during removal to prevent injury to yourself and others. The use of eye protection is recommended.
SIG556 OM 12.06.qxp 1/8/2007 2:26 PM Page 42 TO REASSEMBLE 7.1. Reassembly The rifle should always be reassembled in the reverse order of disassembly: 1. Install the firing pin: a. Insert the firing pin and firing spring spring into the bolt head. The spring should be at the rear. Ensure that the notch on the firing pin is aligned with the firing pin stud. b.
SIG556 OM 12.06.qxp 1/8/2007 2:26 PM Page 43 b. Push the operating rod in until fully seated. The operating rod should move freely through the gas tube. 4. Install the gas valve: a. Ensure the stop pin recesses on the back of the gas valve tab face the barrel. b. Insert the gas valve into the gas tube (the gas valve will seat over the operating rod). c. Depress the stop pin and rotate the gas valve to the right to Position 1. d. Release the stop pin.
SIG556 OM 12.06.qxp 1/8/2007 2:26 PM Page 44 the front. b. With the notch facing up, slide the bolt head shaft fully into the bolt carrier. c. Rotate the bolt head to the left until the notch rests in the cam. d. Press forward on the firing pin until the bolt head is fully forward. 8. Install the bolt assembly into the receiver: a. Hold the receiver muzzle down. b. Holding the bolt carrier, align the left lug on the bolt head with the lug channel in the receiver. c.
SIG556 OM 12.06.qxp 1/8/2007 2:26 PM Page 45 a. Mate the receiver and trigger casing together at the front takedown pin, ensuring the pivot pin holes overlap. b. Install the pivot pin from the right side and secure the pivot pin screw. c. Rotate the trigger casing until the rear takedown pin holes in the trigger casing assembly and receiver are aligned. d. Press the rear takedown pin in fully 10. Perform a function check in accordance with Section 7.2. 7.2.
SIG556 OM 12.06.qxp 1/8/2007 2:26 PM Page 46 and release – the hammer must not release; 8. Release the trigger and pull the trigger again – the trigger is not blocked and the hammer must release (fall); 9. Cycle the trigger several times to verify tension and movement of the pressure point spring; WARNING: Visually and physically verify the magazine is empty before performing the next step. 10. Insert an empty magazine and ensure it is firmly seated; 11.
SIG556 OM 12.06.qxp 1/8/2007 2:26 PM Page 47 failures to fire or other possibly dangerous malfunctions, such as leaving a bullet in the bore! After cleaning, always check to be certain that the magazine follower movement and spring tension are correct, and that no solvent or debris remain. Improper reassembly of the magazine spring can cause a potentially dangerous malfunction. If cleaning does not restore proper tension, or if you experience a problem with the magazine, do not use it. Get a new one.
SIG556 OM 12.06.qxp 1/8/2007 2:26 PM Page 48 WARNING - STORAGE Never place or store any firearm in such a manner that it may be dislodged. Firearms should always be stored securely and unloaded, away from children and other unauthorized users. Use the locking device originally supplied with this firearm for storage. The use of a locking device or safety lock is only one aspect of responsible firearms storage.
SIG556 OM 12.06.qxp 1/8/2007 2:26 PM Page 49 MAINTAINENCE 9.0. Maintenance All firearms require periodic maintenance and inspection which may reveal a need for adjustment or repair. Have your firearm checked by a competent gunsmith annually even if it seems to be working well, since breakage, improper functioning or corrosion of some components may not be apparent from external examination. If you notice any mechanical malfunction, DO NOT continue to use the firearm.
SIG556 OM 12.06.qxp 1/8/2007 2:26 PM Page 50 6. Apply a light coating of high quality firearms lubricant or grease to exposed metal surfaces to enhance corrosion protection; 7. Reassemble the rifle per section 7.1; and 8. Perform a function check in accordance with section 7.2. SERVICE AND PARTS POLICY Parts Policy Our Service Department maintains a full complement of replacement parts.
SIG556 OM 12.06.qxp 1/8/2007 2:26 PM Page 51 WARNING - PARTS PURCHASERS It is the purchaser’s responsibility to be absolutely certain that any parts ordered from the factory are correctly fitted and installed. Firearms are complicated mechanisms and IMPROPER FITTING OF PARTS MAY RESULT IN A DANGEROUS MALFUNCTION, DAMAGE TO THE FIREARM, AND SERIOUS INJURY TO THE SHOOTER AND OTHER PERSONS.
SIG556 OM 12.06.qxp 1/8/2007 2:26 PM Page 52 SHIPPING FIREARMS FOR REPAIR Returning Your Firearm For Service In the event you need to return your rifle to the SIGARMS Service Department, here’s what to do: 1. The first step is to contact Customer Service at (603) 772-2302 for an RMA number. This number allows SIGARMS to track the status of your return from its receipt at SIGARMS through its return to you. Please do not send your firearm until you obtain an RMA number. 2.
SIG556 OM 12.06.qxp 1/8/2007 2:26 PM Page 53 7. Ship your firearms insured and prepaid (we do not accept collect shipments) to: SIGARMS, Inc. Attention: Service Department 18 Industrial Drive Exeter, NH 03833 This instruction manual should always accompany this rifle and be transferred with it upon change of ownership. WARNING: BEFORE SHIPPING ANY FIREARM, BE ABSOLUTELY CERTAIN THAT THE FIREARM AND ITS MAGAZINE ARE UNLOADED. DO NOT SHIP CARTRIDGES WITH A FIREARM.
SIG 556 Operators Manual 54 700 Magazine Group 701 Magazine, 30 rd 600 Butt Stock Group 611 Butt stock 612 Receiver extention 613 Locking nut 614 Spacer 615 Plunger 616 Plunger spring 515 Main spring 516 Bolt catch 517 Bolt catch spring 518 Bolt catch pin 519 Safety lever 520 Safety shaft 521 Locking spring 522 Spring pin 523 Trigger 524 Trigger spring 525 Sear & Disconnector 526 Trigger pivot pin 527 Trigger bushing 528 Sear spring 529 Takedown pin 530 Pivot pin 531 Pivot pin screw 2:26 PM 500 Trigge
SIG556 OM 12.06.qxp 1/8/2007 2:26 PM Page 55 PARTS DRAWING 10.1. Parts Diagram SIG 556 Operators Manual 55 P/N 1511203 VER 12.7.
SIG556 OM 12.06.qxp 1/8/2007 2:26 PM Page 56 THE BASIC RULES OF SAFE FIREARMS HANDLING 1. ALWAYS treat every gun as if it were loaded. 2. ALWAYS be sure the barrel is clear of any obstruction. 3. ALWAYS be sure of your backstop, what lies beyond, and the safety of bystanders before you shoot. 4. ALWAYS use clean, dry, original factory-made ammunition of the proper type and caliber for your gun. 5. ALWAYS wear ear protection and safety glasses when shooting. 6.
SIG556 OM 12.06.qxp 1/8/2007 2:26 PM Page 57 WARRANTY INFORMATION Based on the Magnuson-Moss Warranty Act, SIGARMS, Inc. offers no express warranty on their product line. However, SIGARMS, Inc. recognizes its obligations concerning service to owners of SIGARMS products. SIGARMS, Inc. stands behind its products and will continue to provide service for its product line as they have over the years. SIGARMS, Inc.
SIG556 OM 12.06.qxp 1/8/2007 2:26 PM Page 58 Be aware of those around you. If their actions are not in keeping with safe gun handling procedures, TELL THEM. IMPORTANT Do not discard. Keep this manual with your firearm. Upon change of ownership, transfer this manual with the firearm. SIGARMS Inc. 18 Industrial Drive Exeter, NH 03833 (603) 772-2302 www.sigarms.com SIGARMS® is a registered trademarks of SIGARMS Inc. All specifications are subject to change without notice. P/N 1511203 VER 12.07.
