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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Check alinement of front sight, security of base on barrel, and security of sight and pin in base. Manuql shooting for your M! Never attempt to peen the ring while mounted on the sight.
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Same magazine spring is used for all models. Push patch back and forth through bore several times, taking care that all points of the bore are cleaned from muzzle to chamber. To remove the rear sight assembly from the Rifle M A3 fig. Special tools and gages used for inspection are listed and shown in SNL B and are carried on the small arms repair truck.
A list of parts for all four rifles covered herein is contained in SNL B-3, with parts m103a3 to any one model only, so indicated 3. Krag, on the other hand, had a bolt with a single locking lug that limited the power of the cartridge, and the Krag was not easily adaptable to clip-loading.
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When the rifle is cocked, the mainspring will remain compressed as long as the sear nose is re- tained in the sear notch of the cocking piece. Raise rear end of lower portion of the magazine spring high enough to clear lug on floor plate and draw spring out of its mortise Rifles M and MA1.
With sight at right angles to mount base and rear eyepiece end to right bolt handle side of receiver, insert mounting lug on front mount ring into mounting recess in front end of mount base.
Thread in cut-off screw, making sure that it is screwed in far enough to engage the spindle. Slightly peen the top surface of the spline on the barrel The peening should be just enough to make a snug fit between the slot in the fixed stud and the spline when as- sembled.
Drive pin into hole securely. The tweezers are then ap- plied and the fixed stud closed to its original size and shape to fit the movable stud. If leather is pliable and in good condition it may be treated with a thick lather of saddle soap, rinsed with clean water, and when thoroughly dry, rubbed briskly with clean, dry CLOTH, wiping.
Check for loose or missing front sight screw. The sight base is now staked in place. If moved laterally, the vertical and horizontal alinement of the reticle will become shifted.
The hook at the front end of the extractor fig. It may be necessary to lift rear lug slightly to slide it on mount base.
A3 Field Manual – CMP Forums
n1903a3 Special financing available Select PayPal Credit at checkout to have the option to pay over time. There is no floor plate catch in this nanual. Likewise, the sight should be mounted to the rifle only after ail other groups have been assembled and installed. It is a gage made in the form of a rifle bolt without extractor or firing pin mechanism. This Technical Manual is published for the information and guidance of ordnance maintenance personnel.
In this rifle, the base of the front sight which corresponds to the fixed stud in sub- paragraph b, above, is held on the barrel by a key seated in a longi- tudinal keyway, and a pin passing through the sight base and a groove mnual the key when assembled. Remove upper band screw Rifles M9103a3 and MA1 and drive upper band forward by a few short blows on the lug with a hard wood block.
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By aboutall branches of the U. The position of the rear end of the sight is fixed at manufacture by staking the lett lateral adjusting screw in position. The components of the bolt group are shown in figures 42 and There is no front sight on the Rifle MA4. Inspect heads of screws for burs. To remove floor plate catch and spring from trigger guard, drive out the floor plate catch pin from either side.
Dismounting and mounting the telescopic sight as well as disassembly and assembly are explained in this manual Adjustments and care are covered in detail in TM