This manual is published for the information and government of the Regular Army and Organized Militia of the United States. By order of the Secretary of War. Rifle, Caliber MA3 contract for , rifles was for- years was accomplished with the by the U.S. Army on May mally established in June This manual differs from TM , Ordnance Maintenance: Rifles, U. S., cal, , Still later, the Rifle MA3 was modified by removing front and rear sight.

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Select a valid country. In the Rifle M, the stacking swivel is of round wire and pivoted to the upper band. The butt swivel assembly, consisting of th, plate, swivel, and pin, is permanently assembled and issued complete. Customers who bought this item also bought.

Please enter a number less than or equal to 1. The windage screw wrench is in the form of a crank, and has a wooden handle. If there is any apparent movement between the reticle cross hairs and the mark, parallax is present. Have one to sell?

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It is a gage made in the form of a rifle bolt without extractor or firing pin mechanism. A broken or bent swivel should be treated as described in subparagraph b, above. Manuual facilitate sliding of mount rings on the sight tube or turning tube in rings, expand rings slightly by inserting blade of small screwdriver or other similar instrument in slit in ring.

During the rotation of the bolt, a rearward motion has been imparted to it by its ,1903a3 cam fig. Place the end of a pointed instrument in the hole and extract the bolt stop assembly par. Aside from dipping the whole rifle, application of the protective film to the bore of the rifle is best done by dipping the cleaning brush in the preservative and running it through the bore two or three times. The MA4 was the only sniper rifle to see significant service bv the U.


The other bayonet is the Ml furnished with the plastic Scabbard M7 fig. If the field test bolt does not close on the gage, a worn bolt is indicated. This manual differs from TMOrdnance Maintenance: The position of the tele- scopic sight is fixed at the front end by the engagement of the mounting lug on the front manuual ring assembled to tube of sight engaging in the mounting recess in the front end of the m1903a33 base.

L To remove butt plate assembly fig. This latter type of loading is necessary for the Rifle MA4 with telescopic sight mounted.

03 M MA3 03A3 MA4 TM Army Technical Manual | eBay

Check security and alinement of rear sight base on receiver, and security of base screw NOTE, par. Before bore sighting, the sight should be adjusted for zero windage and minimum range of yards as explained in TM Please enter 5 or 9 numbers for the ZIP Code. Remove barrel and receiver assembly group trom stock hg. Assemble as prescribed for the Bayonet M in paragraph Care of the Rifle Stock. Short screw passes through top tang of butt plate.

It will be noted in this connection that the dovetailed gage acts as a stop in closing the fixed stud. Some of the MA4 sniper rifles remained in inventory and were rebuilt and fitted with updated telescopes, primarily the “M Contact the seller – opens in a new window or tab and request a shipping method to your location. Care must be taken to insure that drift slide pin is in groove in slide cap before assembling cap and slide.

There is no floor plate catch in this assembly. The cartridge can not come out of magazine well until pushed forward by the bolt.

A3 Field Manual – CMP Forums

Take care not to make a shiny spot on guard, which may reflect light c. Inspect barrel guard in same manner as hand guard in subparagraph g, above, and for retention in barrel guard ring on barrel. If these undercuts of the fixed base are burred or bind the movable base too tightly, the movable base should be removed and the shav- ing tools C and D for the front and rear ends of the rear m1903a33 fixed base, used when available to shave the surface to a proper fit.


Number of grooves in barrel early design 4 Number of grooves in barrel late design 2 Depth of grooves in barrel both designs 0. Check rivets for looseness. However as such a short range is not generally necessary, parallax should not be adjusted if correct for ranges used. Check body for cuts, deep abrasions, or splitting. Front and rear stock screws and nuts are now standard for the Rifle M A3.

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If you are a seller for this product, would you like to suggest updates through seller support? Unscrew and take out rear sight slide binding screw.

Weight with mount rings attached 0. The magazine, however, may be loaded by inserting single cartridges by hand, one after the other. If the sight cover becomes slightly loose when assembled, it may sometimes be tightened by removing it and press- ing the curved lower sides together to obtain more spring-gripping action.

Then insert the slide aperture, so assembled, into the guideways in low end of windage yoke with peep hole end leading. After drying a metal part, the bare hands should not touch that part All metal parts should then be immediately coated either with OIL, lubricating, preservative, medium, or COMPOUND, rust-preventive, light, or COMPOUND, rust-preventive, heavy, depending on the length of storage, the facilities available, and manuak frequency at which it is anticipated inspection will be made m19903a3.

Each graduation corresponds to a lateral deviation in the point of impact of the bullet of 4 inches for each yards of range to the target. Check hook holes for wear and breaks between holes. mnual