Thread: 007 SRC Guns
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Old November 23rd, 2009, 12:05   #80
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Join Date: Dec 2001
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YouTube- 007 Airsoft - SRC Gen III M4 Gearbox Review

Shimming was done properly, in fact, exactly how I would have done them. Without the cylinder and spring assembly, the gears can spin freely even with a tightly closed gear box. There is only very minor play for the each gear axle between the corresponding bearings.

Back side of cylinder head is lined with a rubber pad to absorb impact from piston head

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