Technical data

TM 9-1005-319-23&P 0016
0016-6
REPAIR OR REPLACEMENT - Continued
3. Inspect front sight guards (11) for bends. Straighten bent front sight guards as follows:
NOTE
Remove spring before heating. (Heat will damage spring.) The sight post and
plunger may be reused unless damaged.
a. Remove front sight post, detent, and helical spring (see DISASSEMBLY).
NOTE
Use copper or brass caps (jaw inserts) on bench vise to prevent damage to front sight
base during clamping.
b. Place front sight base (12) in a bench vise.
c. Heat front sight guards (11) and bend with pliers. The front sight guards should be put back as
nearly as possible to the original position. Allow front sight housing to air cool.
WARNING
DRY CLEANING SOLVENT
d. Roughen any damaged surface of front sight guards (11) with abrasive cloth (WP 0045, item 13)
and clean with dry cleaning solvent (WP 0045, item 15). Always wear rubber gloves (WP 0045,
item 17) when using dry cleaning solvent.
WARNING
SOLID FILM LUBRICANT
CAUTION
Do not allow solid film lubricant to flow into front sight post threaded well.
e. Apply solid film lubricant (WP 0045, item 20) to cover the damaged finish.
f. If front sight guards (11) cannot be straightened utilizing the above procedures, replace the barrel
assembly.
4. Slightly bent barrels may be straightened as follows:
a. Check straightness using straightness gage 8448202 (WP 0015). If barrel fails straightness test,
and the gage remains in the barrel in the area of the front sight assembly, perform step b to
determine if it may be straightened.