The gas system includes the magazine tube, seal ring, gas piston, spacer tube, gas system return spring, and gas cylinder portion of the barrel (Figure 15). These parts should be thoroughly cleaned using solvent. A stiff brass bristle brush is useful for removing stubborn deposits.
Apply a light coat of gun oil to all metal parts and then wipe thoroughly with a dry cloth. Excess oil will accelerate the build up of carbon residue in the gas system and may have a negative effect on the shotgun's performance.
Camouflage guns: Caution should be exercised to avoid exposure of camouflage patterns to strong solvents or insect repellants.
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