Airsoft Canada - View Single Post - Tanio Koba / KJW M4 GBBR Basic Information and FAQ

HKp30 · January 31st, 2011, 18:57

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Barrel shim using metal sheets, you can see it fully wraps around the barrel for a very snug fit. Thickness of metal sheets needed may be different depending on your barrel.

January 31st, 2011, 18:57	#284
HKp30 Trader rating Join Date: Jan 2011	Top Down Hop-Up adjust Barrel shim using metal sheets, you can see it fully wraps around the barrel for a very snug fit. Thickness of metal sheets needed may be different depending on your barrel.