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kylem_8 · January 25th, 2010, 08:33

If you get the KJW M4 GBBR then there is an aftermarket part the you can swap in the bolt. you can adjust the FPS to your desired setting and switch between them at your will.... It only takes about 2 minutes to do. Its the velocity adjuster from Cradle Airsoft.

January 25th, 2010, 08:33	#5
kylem_8 Trader rating Join Date: Aug 2006 Location: kitchener ON	If you get the KJW M4 GBBR then there is an aftermarket part the you can swap in the bolt. you can adjust the FPS to your desired setting and switch between them at your will.... It only takes about 2 minutes to do. Its the velocity adjuster from Cradle Airsoft.