Thread: Mp5 Tight Bore
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Old March 23rd, 2010, 08:08   #28
CDN_Stalker
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Ya, bushings, hop up rubber and a bit longer inner barrel is all you need, as well as 0.28g BBs. And change out that 170% spring, buy a Modify 100 spring from airsoftparts too, your mechbox will thank you (with a longer inner barrel, should net you 360-370fps, the perfect velocity for BBs with hop up). I had a 150% spring in mine at first, the mechbox cracked up front after about 1000rds. Was only shooting 350fps too.
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