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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To assemble the telescopic sight mount base to the receiver of the Ride MA4 fig.
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The mount base of each Rifle MA4 is assembled, alined, and leveled at manufacture, and the screws staked in position; therefore, the same shim or one of like thickness par.
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.
This will prevent the patch and rod from becoming stuck in the bore. Barrel, bolt and action modifications and tuning! If the fixed stud front sight. Clean, dry, and thoroughly wash all traces of the COM- POUND, valve grinding, fine, from all surfaces, as it is very important that m1930a3 trace remain to cause undue wear and injury to the mechanism. Most of the original “rod bayonet” rifles were recalled to be retrofitted for the new M knife bayonet and sights, and production with the ” improvements” resumed.
The slide should be very slightly concave. These gages are used with or without the field test bolt to determine headspace. To remove lower band spring, drive its spindle out of its hole in stork from the left. To prepare the weapon for storage, refer to para- graph To remove guard screw bushing, punch out from top or bottom.
Weights should be improvised to test for 3 to 6 pounds as now required. If threads are worn so as to make screws loose, screws should be replaced. When holes in straps become worn or leather is torn between holes, the strap should be replaced. The firing janual assembly consists of the cocking piece and the firing pin rod fig.
A3 Field Manual – CMP Forums
If the field test bolt does mxnual on the gage, a worn chamber or worn bolt locking lug seats in the receiver fig, 61 are indicated. Reassemble firing pin group to bolt. A broken or bent swivel should be treated as in subparagraph b, above. Ships from and sold by Amazon.
Full text of “Ordnance maintenance : U.S. rifles, cal. , M, MA1, MA3 and MA4”
The magazine spring of the Rifles Ml A3 and MA4 is assembled to the follower by pushing the narrow end of the spring into the retaining slot in bottom of follower, and then pushing spring forward until retained by projection on rear end.
In addition, it has a bolt handle notch cut into the right side of the stock, to accomodate the modified bolt handle. Leveling of the base with respect to the bore line is attained by raising the front or rear end of the base. Front Sight Cover fig. Continue this operation until a smooth, regular surface is obtained upon both cam surfaces. Disassembly and assembly of these sights are covered in the group in which they occur. Large numbers of Ms were issued for use as grenade launching rifles.
This sight is furnished with a dust cap assembly for protection of the lenses. A weak or damaged spring should be replaced. The Rifle MA4 is not equipped with a bayonet.
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.
When tapping, lay part flat on hard, level surface such as the anvil of a vise. Insert aperture slide screw and turn in part way. Some Rifles M and MA1 are without the bolt stop assembly par. Each graduation corresponds to a lateral deviation in the point of impact of the bullet of 4 inches for each yards of mamual to the target.
Insert bayonet in scabbard and be sure that either latch hook on mouthpiece will engage positively with scabbard catch on bayonet Then assemble rear sight as follows: This rifle, generally known as the Springfield rifle, has been in service for many years.
During the rotation of the bolt, a rearward motion has been imparted to it by its extracting cam fig. In some bolts these notches are absent, as explained in paragraph 43 i A manal lug fig. Minimum monthly payments are required. Each of these weights should be provided mabual a wire so that m1930a3 weight may be suspended from the middle of the bow of the trigger.
Learn more about Amazon Giveaway. Nonetheless, problems were encountered with the rod bayonet and the hot-burning.
The rifle can readily be used as a single-loader with the magazine empty. From a general historical perspective the year is perhaps best known for the Wright Brothers’ epic flight at Kitty Hawk, N. One gage has eight spaces between the rejection line for machine gun barrels and the rejection line for rifle barrels.
When mounted, the wind- age adjusting screw is on n1903a3 left and the elevation adjusting screw on the top, with respect to the rifle. The war revealed the Krag’s deficiencies and the advantages of the Mauser, which resulted in a reconsideration of the U.