M4 SBR inner barrel length
Quick and short: I'm going to be doing a change on my M4 and make it into an SBR. I'm tossing a 7" barrel/RIS onto it with a FirePig/SoundHog.
The only inner barrels I really see at that length are the 147mm Angy Gun TBBs and the 230mm ones as well, I think the 230mm would be too long though according to my calculations (7" = 177.8mm).
I may be answering my own question, but is the 147mm TBB my only option aside from getting a longer one and cutting it?
Edit: forgot to mention, its an AEG.
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Last edited by Zack The Ripper; October 1st, 2013 at 12:23..
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