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Tool-less bolt carrier extension
Inserted into the front end
that directs the force-of-use into the robust charging handle body
Extended design for AR-308
then you need to use an AR-10/A5 length buffer tube since they are
Aero Precision M4E1 Enhanced Upper Receiver - Anodized Black SLINGS Tool-less bolt carrier extensionOur state of the art M4E1 platform starts here, with the M4E1 Upper Receiver. The M4E1 upper receiver is a one piece design combining the handguard mounting platform with the upper itself. Through superior engineering, we have condensed the parts needed to mount a free floated handguard to a mere 8 screws. Since the handguard mounting surface and upper are of the same forging, not only is it a stronger system, but we are able to make additional
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