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Old March 20th, 2011, 13:26   #19
EagleDriver
 
Join Date: Feb 2009
Location: Baltimore, MD USA
The MAGPUL PTS ACR is indeed easy to work on. Push out one pin, swing open the receiver, and take out four screws (two in grip, two in magwell) to remove the gearbox. As was said before the spring can be changed in less than a minute.
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