FirestarterUK Posted March 21, 2013 Share Posted March 21, 2013 Guys, i dont have a lot of experience but i understand the hop up is adjustable on the WE Glock 18c. I looked inside and on top of the barrel is like a gear wheel. is this a hop up adjustment? it turns a bit but i could not see what it did. Any advice? Thx in advance. Link to comment Share on other sites More sharing options...
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