Technical data

TM 9-1005-319-23&P 0012

0012-7

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Figure 9. Installation of Bolt Rings.

NOTE

To install a bolt ring, carefully place one end in the bolt ring groove and hold in place

with the thumb of one hand. With the index finger of the other hand, gently guide

and push the rest of the bolt ring into the groove a little bit at a time until the entire

bolt ring is in place.

Make certain bolt ring gaps are staggered to prevent loss of gas pressure. New bolt

rings will make installing the bolt assembly difficult. Lubricate inside of key and

bolt carrier assembly and use gentle pressure when installing.

2. Install three bolt rings (8) one at a time onto the bolt (4) using care not to bend or "spring" new bolt

rings. Stagger the bolt ring gaps (approximately 1/3 turn apart).

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Figure 10. Installation of Cartridge Ejector.

CAUTION

Be sure to use vise jaw protective caps.

3. Place bolt (4) in a vise and start spring pin (5) in hole.

4. Install ejector spring (6) and cartridge ejector (7). Align groove on cartridge ejector so that spring pin

(5) can be installed.