Maintenance of Barrel Assembly.

TM 9-6920-361-13&P

c. Assembly.

(2) Remove corrosion, burs, or scored

(1) Assemble the breech bolt group in

areas with crocus cloth.

accordance with figure 4-1.

(3) Replace damaged or broken parts.

(2)

Install the breech bolt group into the

If the safety is unserviceable, notify direct support

barrel receiver.

maintenance personnel.

c. Assembly.

4-8. Maintenance of Barrel Assembly.

(1)

Assemble the barrel assembly in

a. Disassembly (Fig. 4-2).

accordance with figure 4-2.

(1) Remove the breech bolt group from

(2)

Install the breech bolt group into the

barrel receiver (para. 3-9).

barrel receiver.

(2) Disassemble the barrel assembly in

NOTE

accordance with figure 4-2.

Be sure to assemble the bolt guide

b. Maintenance.

(15, fig. 4-2) with the beveled side on

the bottom towards the muzzle of

(1) Clean and oil the barrel assembly as

barrel.

indicated in the lubrication chart (fig. 3-1) and

Figure 4-2. Disassembly/assembly of barrel assembly

4-3