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Posted: 5/8/2012 3:16:50 PM EDT
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Based on everyone's recommendation I bought a Colt CR6720 (heavy SST barrel) hoping to use the 20" inch barrel for prairie dogs and having another lighter upper for coyotes.
I got the rifle and measured the take down pin and it measures .233 diameter, while the pivot pin measures .247" Is this all normal? I thought that they both were .250 diameter Will an another (BCM or DD or etc..) upper fit properly? Lastly under the take down pin stand-off there is a red rubber bumper, what is this? is this normal? Every schematic I see doesn't have this, what gives? Thanks |
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