StealthyAirsoft
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- Apr 10, 2011
- 137
- 0
Hi I want to upgrade my kwa m4 as I want further range and more accuracy and I thought a tightbore would be good but i'm not sure what to go for, sorry you must get this a lot, which is a good make/model. It's friring at about 330 fps with a 6.05 now and it needs to stay under 350 fps for site limits and i was hoping a 6.03 but im not sure if it will go over the site limits. the barrel length is 368mm. Thanks. Also would anyone recommend a tokyo marui hop up rubber. Cheers in advance.
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