Forum: 300 Whisper Rifles and Pistols
07-02-2011, 09:03 AM
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Replies: 4
Views: 1,216
SBRing a 300/221 - how short?
I'm about ready to send in my SBR paperwork on an AR (starting with a 22LR build), and am wondering about shortening my 300/221 upper. I have a 16.5" 1:8 twist upper now with the gas block in the...
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